UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

 

**FORM N-Q**

**QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED**

**MANAGEMENT INVESTMENT COMPANY**

**_______________________________**

Investment Company Act file number  811-2021

DWS Securities Trust

(Exact name of registrant as specified in charter)

 

Two International Place

Boston, MA  02110

(Address of principal executive offices)             (Zip code)

 

Paul Schubert

345 Park Avenue

New York, NY  10154

(Name and address of agent for service)

Registrant's telephone number, including area code:  (212) 454-7190

Date of fiscal year end:  05/31

Date of reporting period: 08/31/07

 

ITEM 1.  SCHEDULE OF INVESTMENTS

 

| Investment Portfolio | **as of August 31, 2007  (Unaudited)** |
|----------------------|----------------------------------------|

 

 

**DWS Health Care Fund**

 

|   | **Shares**              |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                | **Value ($)** |
|--------|-------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------|
|        |
|   | **Common Stocks 98.2%** |  
**Health Care 98.2%**

 
**Biotechnology 20.0%**

 
Alexion Pharmaceuticals, Inc.*  

 

34,100 

 

2,062,027 

Amgen, Inc.*  

 

61,200 

 

3,066,732 

Amylin Pharmaceuticals, Inc.*  

 

26,100 

 

1,279,683 

Applera Corp.-Celera Group*  

 

84,100 

 

1,107,597 

Arena Pharmaceuticals, Inc.* (a) 

 

52,300 

 

700,820 

Biogen Idec, Inc.*  

 

61,695 

 

3,937,375 

BioMarin Pharmaceutical, Inc.* (a) 

 

99,800 

 

2,143,704 

Celgene Corp.*  

 

73,000 

 

4,687,330 

Cepheid, Inc.* (a) 

 

77,000 

 

1,438,360 

 

 

 

 

Gen-Probe, Inc.*  

 

43,900 

 

2,810,478 

Genentech, Inc.*  

 

53,800 

 

4,024,778 

Genmab A/S* (a) 

 

28,100 

 

1,660,497 

Genzyme Corp.*  

 

82,500 

 

5,148,825 

Gilead Sciences, Inc.*  

 

127,000 

 

4,618,990 

Keryx Biopharmaceuticals, Inc.*  

 

55,800 

 

561,348 

PDL BioPharma, Inc.*  

 

86,400 

 

1,685,664 

Regeneron Pharmaceuticals, Inc.*  

 

62,900 

 

1,224,034 

Vertex Pharmaceuticals, Inc.* (a) 

 

39,300 

 

1,531,128 

 

**43,689,370**

**Health Care Services 24.0%**

 
Aetna, Inc.  

 

70,600 

 

3,594,246 

Allscripts Healthcare Solutions, Inc.*  

 

83,900 

 

1,896,979 

Cardinal Health, Inc.  

 

42,200 

 

2,885,636 

Covance, Inc.*  

 

45,600 

 

3,343,392 

CVS Caremark Corp.  

 

90,685 

 

3,429,707 

Express Scripts, Inc.*  

 

70,300 

 

3,848,925 

Fresenius Medical Care AG & Co. (a) 

 

62,523 

 

3,074,914 

HealthExtras, Inc.*  

 

40,100 

 

1,127,211 

Henry Schein, Inc.*  

 

48,100 

 

2,798,939 

Laboratory Corp. of America Holdings* (a) 

 

42,900 

 

3,331,614 

McKesson Corp.  

 

76,000 

 

4,347,960 

Medco Health Solutions, Inc.*  

 

41,926 

 

3,582,577 

Pharmaceutical Product Development, Inc.  

 

83,500 

 

2,925,005 

Quality Systems, Inc. (a) 

 

55,600 

 

2,048,860 

TriZetto Group, Inc.*  

 

48,600 

 

759,618 

UnitedHealth Group, Inc.  

 

92,320 

 

4,616,923 

WellPoint, Inc.*  

 

60,100 

 

4,843,459 

 

**52,455,965**

**Life Sciences Equipment 2.7%**

 
Thermo Fisher Scientific, Inc.*  

 

109,600 

 

**5,943,608**

**Medical Supply & Specialty 20.5%**

 
Alcon, Inc.  

 

24,100 

 

3,259,766 

ArthroCare Corp.* (a) 

 

57,300 

 

3,209,946 

Baxter International, Inc.  

 

125,100 

 

6,850,476 

Beckman Coulter, Inc.  

 

17,400 

 

1,251,930 

Becton, Dickinson & Co.  

 

52,900 

 

4,070,126 

C.R. Bard, Inc.  

 

62,000 

 

5,170,180 

Cynosure, Inc. "A"*  

 

26,900 

 

844,122 

Dade Behring Holdings, Inc.  

 

29,900 

 

2,257,749 

Hologic, Inc.* (a) 

 

49,100 

 

2,609,665 

Medtronic, Inc.  

 

72,000 

 

3,804,480 

Mentor Corp. (a) 

 

23,200 

 

1,034,488 

NuVasive, Inc.*  

 

73,000 

 

2,328,700 

Palomar Medical Technologies, Inc.*  

 

27,700 

 

872,550 

Respironics, Inc.*  

 

27,200 

 

1,290,096 

SonoSite, Inc.* (a) 

 

31,200 

 

909,792 

Stryker Corp.  

 

45,400 

 

3,032,720 

Zimmer Holdings, Inc.*  

 

25,700 

 

2,013,081 

 

**44,809,867**

**Pharmaceuticals 31.0%**

 
Abbott Laboratories  

 

97,100 

 

5,040,461 

Allergan, Inc.  

 

49,800 

 

2,988,498 

Astellas Pharma, Inc.  

 

52,800 

 

2,452,495 

 

 

 

 

AstraZeneca PLC  

 

44,601 

 

2,201,292 

Bristol-Myers Squibb Co.  

 

130,800 

 

3,812,820 

Cardiome Pharma Corp.*  

 

58,600 

 

519,782 

Eli Lilly & Co.  

 

81,300 

 

4,662,555 

Forest Laboratories, Inc.*  

 

24,700 

 

929,461 

Johnson & Johnson  

 

67,300 

 

4,158,467 

Merck & Co., Inc.  

 

74,600 

 

3,742,682 

Merck KGaA (a) 

 

24,314 

 

3,122,878 

MGI Pharma, Inc.*  

 

22,000 

 

518,540 

Novartis AG (Registered) (a) 

 

55,498 

 

2,924,062 

Pfizer, Inc.  

 

168,750 

 

4,191,750 

Roche Holding AG (Genusschein)  

 

38,385 

 

6,679,810 

Sanofi-Aventis (a) 

 

34,560 

 

2,828,486 

Schering-Plough Corp.  

 

149,000 

 

4,472,980 

Shire PLC (ADR)  

 

42,900 

 

3,377,946 

Stada Arzneimittel AG (a) 

 

39,900 

 

2,563,783 

Vanda Pharmaceuticals, Inc.* (a) 

 

111,900 

 

1,670,667 

Wyeth  

 

104,900 

 

4,856,870 

 

**67,716,285**

**Total Common Stocks** (Cost $151,482,896)

 

**214,615,095**

 

**Securities Lending Collateral 11.3%**

 
Daily Assets Fund Institutional, 5.49%  (b) (c)(Cost $24,777,290)

 

 

24,777,290

 

**24,777,290**

 

**Cash Equivalents 1.3%**

 
Cash Management QP Trust, 5.32%  (b)(Cost $2,773,878)

 

 

2,773,878

 

**2,773,878**

 

**% of****Net Assets**

 

**Value ($)**

**Total Investment Portfolio** (Cost $179,034,064) 

110.8

 

**242,166,263**

**Other Assets and Liabilities, Net**

(10.8)

 

**(23,693,799)**

**Net Assets**

100.0

 

**218,472,464**

 

*For information on the Fund's policies regarding the valuation of investments and other significant accounting policies, please refer to the Fund's most recent semi-annual or annual financial statements.*

***

*Non-income producing security.*

*(a)*

*All or a portion of these securities were on loan.  The value of all securities loaned at August 31, 2007 amounted to $23,911,284 which is 10.9% of net assets.*

*(b)*

*Affiliated fund managed by Deutsche Investment Management Americas Inc.  The rate shown is the annualized seven-day yield at period end.*

*(c)*

*Represents collateral held in connection with securities lending.*

*ADR: American Depositary Receipt*

 

 

**ITEM 2.**

**CONTROLS AND PROCEDURES**

 

 

 

(a)          The Chief Executive and Financial Officers concluded that the Registrant’s Disclosure Controls and Procedures are effective based on the evaluation of the Disclosure Controls and Procedures as of a date within 90 days of the filing date of this report.

 

 

 

 

 

 

 

(b)         There have been no changes in the registrant’s internal control over financial reporting that occurred during the registrant’s last half-year (the registrant’s second fiscal half-year in the case of the annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal controls over financial reporting.

 

 

**ITEM 3.**

**EXHIBITS**

 

 

 

Certification pursuant to Rule 30a-2(a) under the Investment Company Act of 1940 (17 CFR 270.30a-2(a)) is filed and attached hereto as Exhibit 99.CERT.

 

 

 

**SIGNATURES**

 

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

 

Registrant: 

DWS Health Care Fund, a series of DWS Securities Trust

 

By:

/s/Michael G. Clark

 

Michael G. Clark

President

 

Date:

October 17, 2007

 

 

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

 

Registrant: 

DWS Health Care Fund, a series of DWS Securities Trust

 

By:

/s/Michael G. Clark

 

Michael G. Clark

President

 

Date:

October 17, 2007

 

 

By:

/s/Paul Schubert

 

Paul Schubert

Chief Financial Officer and Treasurer

 

Date:                                        October 17, 2007

 

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