```

                                                             OMB APPROVAL
                                                     OMB Number:       3235-0578
                                                     Expires:  January 31, 2016
                                                     Estimated average burden
                                                     hours per response.....
                                                     10.5

                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM N-Q

                   QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS
    OF REGISTERED MANAGEMENT INVESTMENT COMPANY

  Investment Company Act file number 811-01466

                         Pioneer Fund
               (Exact name of registrant as specified in charter)

                       60 State Street, Boston, MA 02109
              (Address of principal executive offices) (ZIP code)

            Terrence J. Cullen, Pioneer Investment Management, Inc.,
                       60 State Street, Boston, MA 02109
                    (Name and address of agent for service)

Registrant's telephone number, including area code:  (617) 742-7825

Date of fiscal year end:  December 31

Date of reporting period:  September 30, 2015

Form N-Q is to be used by management investment companies, other than small
business investment companies registered on Form N-5 (239.24 and 274.5 of this
chapter), to file reports with the Commission, not later than 60 days after
close of the first and third fiscal quarters, pursuant to Rule 30b1-5 under
the Investment Company Act of 1940 (17 CFR 270.30b1-5).  The Commission may
use the information provided on Form N-Q in its regulatory, disclosure review,
inspection, and policymaking roles.

A registrant is required to disclose the information specified by Form N-Q,
and the Commission will make this information public. A registrant is not
required to respond to the collection of information contained in Form N-Q
unless the Form displays a currently valid Office of Management and Budget
("OMB") control number. Please direct comments concerning the accuracy of the
information collection burden estimate and any suggestions for reducing the
burden to Secretary, Securities and Exchange Commission, 450 Fifth Street, NW,
Washington, DC 20549-0609.  The OMB has reviewed this collection of information
under the clearance requirements of 44 U.S.C. ss. 3507.

<PAGE>
ITEM 1. Schedule of Investments.

File the schedules as of the close of the reporting period as set forth in
ss. 210.12-12  12-14 of Regulation S-X [17 CFR 210.12-12  12-14]. The
schedules need not be audited.
```

```

```

|                                                                                                                                                       |      |   |   | Pioneer Fund                                                                                        |   |                                                                                                    |
|------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------|--------|--------|-----------------------------------------------------------------------------------------------------|--------|---------------------------------------------------------------------------------------------------------|
|                                                                                                                                                       |      |   |   | Schedule of Investments 9/30/15 (unaudited)                                                         |   |                                                                                                    |
|                                                                                                                                                       |      |   |   |                                                                                                |   |                                                                                                    |
|                                                                                                                                                       | Shares    |   |   |                                                                                                |   | Value                                                                                                   |
|                                                                                                                                                       |      |   |   | COMMON STOCKS - 99.5%                                                                               |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Energy - 5.6%                                                                                       |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Oil & Gas Drilling - 0.4%                                                                       |   |                                                                                                    |
|                                                                                                                                                       | 434,389   |   |   | Helmerich & Payne, Inc.                                                                         | $      | 20,529,224                                                                                              |
|                                                                                                                                                       |      |   |   | Oil & Gas Equipment & Services - 0.9%                                                       |   |                                                                                                    |
|                                                                                                                                                       | 576,201   |   |   | Schlumberger, Ltd.                                                                                  | $      | 39,740,583                                                                                              |
|                                                                                                                                                       |      |   |   | Integrated Oil & Gas - 1.8%                                                                     |   |                                                                                                    |
|                                                                                                                                                       | 1,048,620 |   |   | Chevron Corp.                                                                                       | $      | 82,715,146                                                                                              |
|                                                                                                                                                       |      |   |   | Oil & Gas Exploration & Production - 0.9%                                                   |   |                                                                                                    |
|                                                                                                                                                       | 559,672   |   |   | EOG Resources, Inc.                                                                                 | $      | 40,744,122                                                                                              |
|                                                                                                                                                       |      |   |   | Oil & Gas Refining & Marketing - 1.6%                                                       |   |                                                                                                    |
|                                                                                                                                                       | 813,480   |   |   | Marathon Petroleum Corp.                                                                            | $      | 37,688,528                                                                                              |
|                                                                                                                                                       | 438,706   |   |   | Phillips 66                                                                                         |   | 33,710,169                                                                                              |
|                                                                                                                                                       |      |   |   |                                                                                                | $      | 71,398,697                                                                                              |
|                                                                                                                                                       |      |   |   | Total Energy                                                                                        | $      | 255,127,772                                                                                             |
|                                                                                                                                                       |      |   |   | Materials - 3.7%                                                                                    |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Diversified Chemicals - 0.6%                                                                        |   |                                                                                                    |
|                                                                                                                                                       | 620,601   |   |   | The Dow Chemical Co.                                                                                | $      | 26,313,482                                                                                              |
|                                                                                                                                                       |      |   |   | Fertilizers & Agricultural Chemicals - 0.8%                                                     |   |                                                                                                    |
|                                                                                                                                                       | 120,000   |   |   | Syngenta AG                                                                                         | $      | 38,400,492                                                                                              |
|                                                                                                                                                       |      |   |   | Specialty Chemicals - 2.3%                                                                          |   |                                                                                                    |
|                                                                                                                                                       | 504,292   |   |   | Ecolab, Inc.                                                                                        | $      | 55,330,918                                                                                              |
|                                                                                                                                                       | 9,886     |   |   | Givaudan SA                                                                                         |   | 16,066,144                                                                                              |
|                                                                                                                                                       | 435,751   |   |   | The Valspar Corp.                                                                                   |   | 31,321,782                                                                                              |
|                                                                                                                                                       |      |   |   |                                                                                                | $      | 102,718,844                                                                                             |
|                                                                                                                                                       |      |   |   | Total Materials                                                                                     | $      | 167,432,818                                                                                             |
|                                                                                                                                                       |      |   |   | Capital Goods - 4.7%                                                                                |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Aerospace & Defense - 0.9%                                                                      |   |                                                                                                    |
|                                                                                                                                                       | 409,096   |   |   | Honeywell International, Inc.                                                                       | $      | 38,737,300                                                                                              |
|                                                                                                                                                       |      |   |   | Building Products - 0.4%                                                                            |   |                                                                                                    |
|                                                                                                                                                       | 334,340   |   |   | Allegion Plc                                                                                        | $      | 19,278,044                                                                                              |
|                                                                                                                                                       |      |   |   | Industrial Conglomerates - 2.0%                                                                     |   |                                                                                                    |
|                                                                                                                                                       | 3,703,977 |   |   | General Electric Co.                                                                                | $      | 93,414,300                                                                                              |
|                                                                                                                                                       |      |   |   | Construction & Farm Machinery & Heavy Trucks - 0.4%                                         |   |                                                                                                    |
|                                                                                                                                                       | 386,763   |   |   | PACCAR, Inc.                                                                                        | $      | 20,177,426                                                                                              |
|                                                                                                                                                       |      |   |   | Industrial Machinery - 1.0%                                                                         |   |                                                                                                    |
|                                                                                                                                                       | 876,528   |   |   | Ingersoll-Rand Plc                                                                                  | $      | 44,501,327                                                                                              |
|                                                                                                                                                       |      |   |   | Total Capital Goods                                                                                 | $      | 216,108,397                                                                                             |
|                                                                                                                                                       |      |   |   | Transportation - 2.5%                                                                               |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Railroads - 2.5%                                                                                    |   |                                                                                                    |
|                                                                                                                                                       | 480,926   |   |   | Norfolk Southern Corp.                                                                              | $      | 36,742,746                                                                                              |
|                                                                                                                                                       | 903,075   |   |   | Union Pacific Corp.                                                                                 |   | 79,840,861                                                                                              |
|                                                                                                                                                       |      |   |   |                                                                                                | $      | 116,583,607                                                                                             |
|                                                                                                                                                       |      |   |   | Total Transportation                                                                                | $      | 116,583,607                                                                                             |
|                                                                                                                                                       |      |   |   | Automobiles & Components - 0.4%                                                                 |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Auto Parts & Equipment - 0.4%                                                                   |   |                                                                                                    |
|                                                                                                                                                       | 424,636   |   |   | BorgWarner, Inc.                                                                                    | $      | 17,660,611                                                                                              |
|                                                                                                                                                       |      |   |   | Total Automobiles & Components                                                                  | $      | 17,660,611                                                                                              |
|                                                                                                                                                       |      |   |   | Consumer Durables & Apparel - 0.6%                                                              |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Household Appliances - 0.6%                                                                         |   |                                                                                                    |
|                                                                                                                                                       | 988,608   |   |   | Electrolux AB                                                                                       | $      | 27,827,187                                                                                              |
|                                                                                                                                                       |      |   |   | Total Consumer Durables & Apparel                                                               | $      | 27,827,187                                                                                              |
|                                                                                                                                                       |      |   |   | Media - 6.8%                                                                                        |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Broadcasting - 1.9%                                                                                 |   |                                                                                                    |
|                                                                                                                                                       | 1,214,793 |   |   | CBS Corp. (Class B)                                                                                 | $      | 48,470,241                                                                                              |
|                                                                                                                                                       | 797,237   |   |   | Scripps Networks Interactive, Inc.                                                                  |   | 39,216,088                                                                                              |
|                                                                                                                                                       |      |   |   |                                                                                                | $      | 87,686,329                                                                                              |
|                                                                                                                                                       |      |   |   | Movies & Entertainment - 1.9%                                                                   |   |                                                                                                    |
|                                                                                                                                                       | 850,783   |   |   | The Walt Disney Co.                                                                                 | $      | 86,950,023                                                                                              |
|                                                                                                                                                       |      |   |   | Publishing - 3.0%                                                                                   |   |                                                                                                    |
|                                                                                                                                                       | 2,736,229 |   |   | John Wiley & Sons, Inc. (Class A) †                                                       | $      | 136,893,540                                                                                             |
|                                                                                                                                                       |      |   |   | Total Media                                                                                         | $      | 311,529,892                                                                                             |
|                                                                                                                                                       |      |   |   | Retailing - 6.1%                                                                                    |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | General Merchandise Stores - 1.3%                                                                   |   |                                                                                                    |
|                                                                                                                                                       | 835,758   |   |   | Dollar General Corp.                                                                                | $      | 60,542,310                                                                                              |
|                                                                                                                                                       |      |   |   | Apparel Retail - 3.1%                                                                               |   |                                                                                                    |
|                                                                                                                                                       | 1,491,766 |   |   | Ross Stores, Inc.                                                                                   | $      | 72,305,898                                                                                              |
|                                                                                                                                                       | 953,610   |   |   | The TJX Companies, Inc.                                                                             |   | 68,106,826                                                                                              |
|                                                                                                                                                       |      |   |   |                                                                                                | $      | 140,412,724                                                                                             |
|                                                                                                                                                       |      |   |   | Home Improvement Retail - 1.7%                                                                      |   |                                                                                                    |
|                                                                                                                                                       | 662,520   |   |   | The Home Depot, Inc.                                                                                | $      | 76,514,435                                                                                              |
|                                                                                                                                                       |      |   |   | Total Retailing                                                                                     | $      | 277,469,469                                                                                             |
|                                                                                                                                                       |      |   |   | Food & Staples Retailing - 2.5%                                                                 |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Drug Retail - 2.5%                                                                                  |   |                                                                                                    |
|                                                                                                                                                       | 1,205,387 |   |   | CVS Health Corp.                                                                                    | $      | 116,295,738                                                                                             |
|                                                                                                                                                       |      |   |   | Total Food & Staples Retailing                                                                  | $      | 116,295,738                                                                                             |
|                                                                                                                                                       |      |   |   | Food, Beverage & Tobacco - 7.5%                                                                 |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Soft Drinks - 1.8%                                                                                  |   |                                                                                                    |
|                                                                                                                                                       | 392,823   |   |   | Dr. Pepper Snapple Group, Inc.                                                                      | $      | 31,052,658                                                                                              |
|                                                                                                                                                       | 1,246,636 |   |   | The Coca-Cola Co.                                                                                   |   | 50,015,036                                                                                              |
|                                                                                                                                                       |      |   |   |                                                                                                | $      | 81,067,694                                                                                              |
|                                                                                                                                                       |      |   |   | Packaged Foods & Meats - 5.7%                                                                   |   |                                                                                                    |
|                                                                                                                                                       | 930,715   |   |   | Campbell Soup Co.                                                                                   | $      | 47,168,636                                                                                              |
|                                                                                                                                                       | 1,120,443 |   |   | General Mills, Inc.                                                                                 |   | 62,890,466                                                                                              |
|                                                                                                                                                       | 463,191   |   |   | Mead Johnson Nutrition Co.                                                                          |   | 32,608,646                                                                                              |
|                                                                                                                                                       | 1,476,964 |   |   | Mondelez International, Inc.                                                                        |   | 61,840,483                                                                                              |
|                                                                                                                                                       | 651,373   |   |   | The Hershey Co.                                                                                     |   | 59,848,151                                                                                              |
|                                                                                                                                                       |      |   |   |                                                                                                | $      | 264,356,382                                                                                             |
|                                                                                                                                                       |      |   |   | Total Food, Beverage & Tobacco                                                                  | $      | 345,424,076                                                                                             |
|                                                                                                                                                       |      |   |   | Household & Personal Products - 0.6%                                                            |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Household Products - 0.6%                                                                           |   |                                                                                                    |
|                                                                                                                                                       | 224,281   |   |   | The Clorox Co.                                                                                      | $      | 25,911,184                                                                                              |
|                                                                                                                                                       |      |   |   | Total Household & Personal Products                                                             | $      | 25,911,184                                                                                              |
|                                                                                                                                                       |      |   |   | Health Care Equipment & Services - 9.6%                                                         |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Health Care Equipment - 5.3%                                                                        |   |                                                                                                    |
|                                                                                                                                                       | 730,140   |   |   | Abbott Laboratories                                                                                 | $      | 29,366,231                                                                                              |
|                                                                                                                                                       | 449,863   |   |   | Becton Dickinson and Co.                                                                            |   | 59,678,826                                                                                              |
|                                                                                                                                                       | 664,027   |   |   | CR Bard, Inc.                                                                                       |   | 123,714,870                                                                                             |
|                                                                                                                                                       | 1,824,807 |   |   | Smith & Nephew Plc                                                                              |   | 31,808,309                                                                                              |
|                                                                                                                                                       |      |   |   |                                                                                                | $      | 244,568,236                                                                                             |
|                                                                                                                                                       |      |   |   | Health Care Distributors - 1.2%                                                                     |   |                                                                                                    |
|                                                                                                                                                       | 303,690   |   |   | McKesson Corp.                                                                                      | $      | 56,191,761                                                                                              |
|                                                                                                                                                       |      |   |   | Health Care Services - 1.0%                                                                         |   |                                                                                                    |
|                                                                                                                                                       | 533,214   |   |   | Express Scripts Holding Co. *                                                                       | $      | 43,169,005                                                                                              |
|                                                                                                                                                       |      |   |   | Managed Health Care - 2.1%                                                                          |   |                                                                                                    |
|                                                                                                                                                       | 459,084   |   |   | Aetna, Inc.                                                                                         | $      | 50,228,380                                                                                              |
|                                                                                                                                                       | 259,444   |   |   | Humana, Inc.                                                                                        |   | 46,440,476                                                                                              |
|                                                                                                                                                       |      |   |   |                                                                                                | $      | 96,668,856                                                                                              |
|                                                                                                                                                       |      |   |   | Total Health Care Equipment & Services                                                          | $      | 440,597,858                                                                                             |
|                                                                                                                                                       |      |   |   | Pharmaceuticals, Biotechnology & Life Sciences - 10.7%                                          |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Biotechnology - 2.6%                                                                                |   |                                                                                                    |
|                                                                                                                                                       | 509,586   |   |   | Alder Biopharmaceuticals, Inc.                                                                      | $      | 16,694,037                                                                                              |
|                                                                                                                                                       | 431,620   |   |   | Alnylam Pharmaceuticals, Inc. *                                                                     |   | 34,684,983                                                                                              |
|                                                                                                                                                       | 641,055   |   |   | Celgene Corp. *                                                                                     |   | 69,342,919                                                                                              |
|                                                                                                                                                       |      |   |   |                                                                                                | $      | 120,721,939                                                                                             |
|                                                                                                                                                       |      |   |   | Pharmaceuticals - 7.0%                                                                              |   |                                                                                                    |
|                                                                                                                                                       | 676,326   |   |   | AbbVie, Inc.                                                                                        | $      | 36,798,898                                                                                              |
|                                                                                                                                                       | 732,794   |   |   | AstraZeneca Plc (A.D.R.)                                                                            |   | 23,317,505                                                                                              |
|                                                                                                                                                       | 446,541   |   |   | Eli Lilly & Co.                                                                                 |   | 37,371,016                                                                                              |
|                                                                                                                                                       | 1,288,661 |   |   | Merck & Co., Inc.                                                                               |   | 63,646,967                                                                                              |
|                                                                                                                                                       | 1,965,724 |   |   | Pfizer, Inc.                                                                                        |   | 61,743,391                                                                                              |
|                                                                                                                                                       | 73,989    |   |   | Roche Holding AG                                                                                    |   | 19,496,743                                                                                              |
|                                                                                                                                                       | 1,853,184 |   |   | Zoetis, Inc.                                                                                        |   | 76,314,117                                                                                              |
|                                                                                                                                                       |      |   |   |                                                                                                | $      | 318,688,637                                                                                             |
|                                                                                                                                                       |      |   |   | Life Sciences Tools & Services - 1.1%                                                           |   |                                                                                                    |
|                                                                                                                                                       | 426,090   |   |   | Thermo Fisher Scientific, Inc.                                                                      | $      | 52,102,285                                                                                              |
|                                                                                                                                                       |      |   |   | Total Pharmaceuticals, Biotechnology & Life Sciences                                            | $      | 491,512,861                                                                                             |
|                                                                                                                                                       |      |   |   | Banks - 8.6%                                                                                        |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Diversified Banks - 6.6%                                                                            |   |                                                                                                    |
|                                                                                                                                                       | 6,547,410 |   |   | Bank of America Corp.                                                                               | $      | 102,008,648                                                                                             |
|                                                                                                                                                       | 1,601,885 |   |   | US Bancorp                                                                                          |   | 65,693,304                                                                                              |
|                                                                                                                                                       | 2,598,318 |   |   | Wells Fargo & Co.                                                                               |   | 133,423,629                                                                                             |
|                                                                                                                                                       |      |   |   |                                                                                                | $      | 301,125,581                                                                                             |
|                                                                                                                                                       |      |   |   | Regional Banks - 2.0%                                                                               |   |                                                                                                    |
|                                                                                                                                                       | 1,789,555 |   |   | Citizens Financial Group, Inc.                                                                      | $      | 42,698,782                                                                                              |
|                                                                                                                                                       | 581,187   |   |   | The PNC Financial Services Group, Inc.                                                              |   | 51,841,880                                                                                              |
|                                                                                                                                                       |      |   |   |                                                                                                | $      | 94,540,662                                                                                              |
|                                                                                                                                                       |      |   |   | Total Banks                                                                                         | $      | 395,666,243                                                                                             |
|                                                                                                                                                       |      |   |   | Diversified Financials - 4.6%                                                                       |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Consumer Finance - 1.4%                                                                             |   |                                                                                                    |
|                                                                                                                                                       | 879,633   |   |   | American Express Co.                                                                                | $      | 65,207,194                                                                                              |
|                                                                                                                                                       |      |   |   | Asset Management & Custody Banks - 0.8%                                                         |   |                                                                                                    |
|                                                                                                                                                       | 566,982   |   |   | State Street Corp.                                                                                  | $      | 38,106,860                                                                                              |
|                                                                                                                                                       |      |   |   | Investment Banking & Brokerage - 2.4%                                                           |   |                                                                                                    |
|                                                                                                                                                       | 2,074,919 |   |   | Morgan Stanley Co.                                                                                  | $      | 65,359,948                                                                                              |
|                                                                                                                                                       | 1,480,554 |   |   | The Charles Schwab Corp.                                                                            |   | 42,284,622                                                                                              |
|                                                                                                                                                       |      |   |   |                                                                                                | $      | 107,644,570                                                                                             |
|                                                                                                                                                       |      |   |   | Total Diversified Financials                                                                        | $      | 210,958,624                                                                                             |
|                                                                                                                                                       |      |   |   | Insurance - 5.2%                                                                                    |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Multi-line Insurance - 1.7%                                                                         |   |                                                                                                    |
|                                                                                                                                                       | 1,707,692 |   |   | The Hartford Financial Services Group, Inc.                                                         | $      | 78,178,140                                                                                              |
|                                                                                                                                                       |      |   |   | Property & Casualty Insurance - 3.5%                                                            |   |                                                                                                    |
|                                                                                                                                                       | 933,138   |   |   | The Chubb Corp.                                                                                     | $      | 114,449,376                                                                                             |
|                                                                                                                                                       | 452,398   |   |   | The Travelers Companies, Inc.                                                                       |   | 45,027,173                                                                                              |
|                                                                                                                                                       |      |   |   |                                                                                                | $      | 159,476,549                                                                                             |
|                                                                                                                                                       |      |   |   | Total Insurance                                                                                     | $      | 237,654,689                                                                                             |
|                                                                                                                                                       |      |   |   | Software & Services - 11.4%                                                                     |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Internet Software & Services - 4.6%                                                             |   |                                                                                                    |
|                                                                                                                                                       | 486,981   |   |   | eBay, Inc. *                                                                                        | $      | 11,901,816                                                                                              |
|                                                                                                                                                       | 701,962   |   |   | Facebook, Inc. *                                                                                    |   | 63,106,384                                                                                              |
|                                                                                                                                                       | 162,711   |   |   | Google, Inc. (Class A) *                                                                            |   | 103,869,821                                                                                             |
|                                                                                                                                                       | 49,264    |   |   | Google, Inc. (Class C)                                                                              |   | 29,973,203                                                                                              |
|                                                                                                                                                       |      |   |   |                                                                                                | $      | 208,851,224                                                                                             |
|                                                                                                                                                       |      |   |   | Data Processing & Outsourced Services - 3.2%                                                    |   |                                                                                                    |
|                                                                                                                                                       | 522,318   |   |   | Automatic Data Processing, Inc.                                                                     | $      | 41,973,474                                                                                              |
|                                                                                                                                                       | 620,487   |   |   | Fiserv, Inc. *                                                                                      |   | 53,740,379                                                                                              |
|                                                                                                                                                       | 486,981   |   |   | PayPal Holdings, Inc.                                                                               |   | 15,115,890                                                                                              |
|                                                                                                                                                       | 541,337   |   |   | Visa, Inc.                                                                                          |   | 37,709,535                                                                                              |
|                                                                                                                                                       |      |   |   |                                                                                                | $      | 148,539,278                                                                                             |
|                                                                                                                                                       |      |   |   | Systems Software - 3.6%                                                                             |   |                                                                                                    |
|                                                                                                                                                       | 495,686   |   |   | Check Point Software Technologies, Ltd. *                                                           | $      | 39,322,770                                                                                              |
|                                                                                                                                                       | 2,882,677 |   |   | Microsoft Corp.                                                                                     |   | 127,587,284                                                                                             |
|                                                                                                                                                       |      |   |   |                                                                                                | $      | 166,910,054                                                                                             |
|                                                                                                                                                       |      |   |   | Total Software & Services                                                                       | $      | 524,300,556                                                                                             |
|                                                                                                                                                       |      |   |   | Technology Hardware & Equipment - 4.8%                                                          |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Communications Equipment - 1.0%                                                                     |   |                                                                                                    |
|                                                                                                                                                       | 392,255   |   |   | F5 Networks, Inc. *                                                                                 | $      | 45,423,129                                                                                              |
|                                                                                                                                                       |      |   |   | Computer Storage & Peripherals - 3.8%                                                           |   |                                                                                                    |
|                                                                                                                                                       | 1,149,274 |   |   | Apple, Inc.                                                                                         | $      | 126,764,922                                                                                             |
|                                                                                                                                                       | 2,047,817 |   |   | EMC Corp.                                                                                           |   | 49,475,259                                                                                              |
|                                                                                                                                                       |      |   |   |                                                                                                | $      | 176,240,181                                                                                             |
|                                                                                                                                                       |      |   |   | Total Technology Hardware & Equipment                                                           | $      | 221,663,310                                                                                             |
|                                                                                                                                                       |      |   |   | Semiconductors & Semiconductor Equipment - 1.2%                                                 |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Semiconductors - 1.2%                                                                               |   |                                                                                                    |
|                                                                                                                                                       | 984,188   |   |   | Analog Devices, Inc.                                                                                | $      | 55,518,045                                                                                              |
|                                                                                                                                                       |      |   |   | Total Semiconductors & Semiconductor Equipment                                                  | $      | 55,518,045                                                                                              |
|                                                                                                                                                       |      |   |   | Utilities - 2.4%                                                                                    |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Electric Utilities - 2.4%                                                                           |   |                                                                                                    |
|                                                                                                                                                       | 1,935,186 |   |   | American Electric Power Co., Inc.                                                                   | $      | 110,034,676                                                                                             |
|                                                                                                                                                       |      |   |   | Total Utilities                                                                                     | $      | 110,034,676                                                                                             |
|                                                                                                                                                       |      |   |   | TOTAL COMMON STOCKS                                                                                 |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | (Cost $3,222,192,251)                                                                               | $      | 4,565,277,613                                                                                           |
|                                                                                                                                                       |      |   |   |                                                                                                |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | TOTAL INVESTMENT IN SECURITIES - 99.5%                                                              |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | (Cost $3,222,192,251) (a)                                                                           | $      | 4,565,277,613                                                                                           |
|                                                                                                                                                       |      |   |   | OTHER ASSETS & LIABILITIES - 0.5%                                                               | $      | 23,694,356                                                                                              |
|                                                                                                                                                       |      |   |   | TOTAL NET ASSETS - 100.0%                                                                           | $      | 4,588,971,969                                                                                           |
|                                                                                                                                                       |      |   |   |                                                                                                |   |                                                                                                    |
|                                                                                                                                                       |      |   |   |                                                                                                |   |                                                                                                    |
|                                                                                                                                                       | *         |   |   | Non-income producing security.                                                                      |   |                                                                                                    |
|                                                                                                                                                       |      |   |   |                                                                                                |   |                                                                                                    |
|                                                                                                                                                       | (A.D.R.)  |   |   | American Depositary Receipts.                                                                       |   |                                                                                                    |
|                                                                                                                                                       |      |   |   |                                                                                                |   |                                                                                                    |
|                                                                                                                                                       | †   |   |   | Investment held by the Fund representing 5% or more of the outstanding voting stock of such company |
|                                                                                                                                                       |      |   |   |                                                                                                |   |                                                                                                    |
|                                                                                                                                                       | (a)       |   |   | At September 30, 2015, the net unrealized appreciation on investments based on                      |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | cost for federal income tax purposes of $3,222,123,799 was as follows:                              |   |                                                                                                    |
|                                                                                                                                                       |      |   |   |                                                                                                |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Aggregate gross unrealized appreciation for all investments in which                                |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | there is an excess of value over tax cost                                                           | $      |               1,495,483,906       |
|                                                                                                                                                       |      |   |   |                                                                                                |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Aggregate gross unrealized depreciation for all investments in which                                |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | there is an excess of tax cost over value                                                           |   |                (152,330,092) |
|                                                                                                                                                       |      |   |   |                                                                                                |   |                                                                                                    |
|                                                                                                                                                       |      |   |   | Net unrealized appreciation                                                                         | $      |               1,343,153,814       |
|                                                                                                                                                       |      |   |   |                                                                                                |   |                                                                                                    |
| Various inputs are used in determining the value of the Fund's investments.  These inputs are summarized in the three broad levels listed below. |
|                                                                                                                                                       |      |   |   |                                                                                                |   |                                                                                                    |
| Level 1 – quoted prices in active markets for identical securities.                                                                                  |      |   |
| Level 2 – other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.) |
| Level 3 – significant unobservable inputs (including the Fund's own assumptions in determining fair value of investments)                            |      |   |
|                                                                                                                                                       |      |   |   |                                                                                                |   |                                                                                                    |
| Generally, equity securities are categorized as Level 1, fixed income securities and senior loans as Level 2 and securities valued                         |      |   |
| using fair value methods (other than prices supplied by independent pricing services) as Level 3.                                                          |      |   |
|                                                                                                                                                       |      |   |   |                                                                                                |   |                                                                                                    |
| The following is a summary of the inputs used as of September 30, 2015, in valuing the Fund's investments:                                                 |      |   |
|                                                                                                                                                       |      |   |   |                                                                                                |   |                                                                                                    |

|                                                                                           |   | Level 1 |          |   | Level 2 |   |   | Level 3 |   |   | Total  |   |
|------------------------------------------------------------------------------------------------|--------|---------|---------------|--------|---------|--------|--------|---------|--------|--------|--------|--------|
| Common Stocks                                                                                  |   | $       | 4,565,277,613 |   |    | $      | -      |    |   | $      | -      |   |   | $ | 4,565,277,613 |   |
| Total                                                                                          |   | $       | 4,565,277,613 |   |    | $      | -      |    |   | $      | -      |   |   | $ | 4,565,277,613 |   |
|                                                                                           |   |    |          |   |    |   |   |    |   |   |   |   |   |   |   |   |
| During the period ended September 30, 2015, there were no transfers between Levels 1, 2 and 3. |   |    |          |   |    |   |   |    |   |   |   |   |   |