# EDGAR Filing Document

**Accession Number:** 0000899148
**File Stem:** 0000913181-25-000362
**Filing Date:** 2025-12
**Character Count:** 9586
**Document Hash:** 6cafb083ac63a524dfb6e90dedbfdb3f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000913181-25-000362.hdr.sgml**: 20251201

**ACCESSION NUMBER**: 0000913181-25-000362

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250930

**FILED AS OF DATE**: 20251201

**DATE AS OF CHANGE**: 20251201

**PERIOD START**: 20260331

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** RYDEX SERIES FUNDS
- **CENTRAL INDEX KEY:** 0000899148

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **FISCAL YEAR END:** 0331

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-07584
- **FILM NUMBER:** 251538231

**BUSINESS ADDRESS:**
- **STREET 1:** 702 KING FARM BOULEVARD
- **STREET 2:** SUITE 200
- **CITY:** ROCKVILLE
- **STATE:** MD
- **ZIP:** 20850
- **BUSINESS PHONE:** 301-296-5100

**MAIL ADDRESS:**
- **STREET 1:** 702 KING FARM BOULEVARD
- **STREET 2:** SUITE 200
- **CITY:** ROCKVILLE
- **STATE:** MD
- **ZIP:** 20850

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** RYDEX DYNAMIC FUNDS
- **DATE OF NAME CHANGE:** 20170712

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** RYDEX SERIES FUNDS
- **DATE OF NAME CHANGE:** 20000229

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** RYDEX SERIES TRUST
- **DATE OF NAME CHANGE:** 19930714

## Series and Classes Contracts Data

### Inverse Government Long Bond Strategy Fund (Series ID: S000003690)

| Class ID   | Class Name     | Ticker Symbol   |
|:---|:---|:---|
| C000010326 | Investor Class | RYJUX           |
| C000010328 | Class A        | RYAQX           |
| C000010329 | Class C        | RYJCX           |
| C000149022 | Class H        | RYHJX           |

## Form NPORT-P: Monthly Portfolio Investments Report

### NPORT-P: Part A: General Information

**Item A.1. Information about the Registrant.**

- **a. Name of Registrant:** Rydex Series Funds

- **b. Investment Company Act file number:** 811-07584

- **c. CIK number of Registrant:** 0000899148

- **d. LEI of Registrant:** 5493004D62WV1EDNTU07

- **e. Address and telephone number of Registrant.**

  - **Street Address 1:** 702 King Farm Blvd., Suite 200

  - **City:** Rockville

  - **State:** MD

  - **Foreign country:** US

  - **Zip / Postal Code:** 20850

  - **Telephone number:** 301-296-5100

**Item A.2. Information about the Series.**

- **a. Name of Series:** Inverse Government Long Bond Strategy Fund

- **b. EDGAR series identifier (if any):** S000003690

- **c. LEI of Series:** 549300MEBX6MJKGCC831

**Item A.3. Reporting period.**

- **a. Date of fiscal year-end:** 2026-03-31

- **b. Date as of which information is reported:** 2025-09-30

**Item A.4. Final filing**

Does the Fund anticipate that this will be its final filing on Form N-PORT? **No**

### Fund Information

**Total Assets:** $28106028.73

**Total Liabilities:** $13258800.89

**Net Assets:** $14847227.84

**Currency Risk Metrics (dv01):**

- 

**Credit Spread Risk - Investment Grade (dv01):**

- **3-Month:** 31.93923610 | **1-Year:** 681.25821270 | **5-Year:** 119.35730970 | **10-Year:** 0.00000000 | **30-Year:** 0.00000000

**Credit Spread Risk - Non-Investment Grade (dv01):**

- **3-Month:** 0.00000000 | **1-Year:** 0.00000000 | **5-Year:** 0.00000000 | **10-Year:** 0.00000000 | **30-Year:** 0.00000000

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000010326 | 1.75%                | 0.74%                | -2.93%               |
| Class ID C000010329 | 1.67%                | 0.65%                | -3.00%               |
| Class ID C000010328 | 1.72%                | 0.72%                | -2.94%               |
| Class ID C000149022 | 1.73%                | 0.72%                | -2.94%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $-99875.82               | $289885.57                                 |
| Month 2  | $-120606.81              | $193520.16                                 |
| Month 3  | $-163912.60              | $-252147.58                                |

**Designated Index Information**

- **Index Name:** Bloomberg US Treasury Bellwethers 30 Year Index

- **Index Identifier:** LEH_30PYR

### Schedule of Portfolio Investments

| Name                                          | Title                                                                    | Identifiers                                   | Payoff Profile   | Asset Category   | Issuer Category   | Country   |   Balance | Units   | Value (USD)   | % of Net Assets   | Maturity Date   | Coupon Type   | Annualized Rate (%)   | Restricted?   |   Fair Value Level | Lending Status   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| BOFA SECURITIES, INC.                         | BofA Securities, Inc.                                                    | CUSIP: N/A<br>LEI: 549300HN4UKV1E2R3U73       | Long             | RA               | CORP              | US        |   2718062 | PA      | $2718062.16   | 18.31%            |  |  |  | No            |                  2 | On Loan: No      |
| Guggenheim Partners Investment Management LLC | Guggenheim Ultra Short Duration Fund - Institutional Class               | CUSIP: 40169J523<br>LEI: N/A                  | Long             | EC               | RF                | US        |    326794 | NS      | $3290818.30   | 22.16%            |  |  |  | No            |                  1 | On Loan: No      |
| FEDERAL FARM CREDIT BANK                      | Federal Farm Credit Bank                                                 | CUSIP: 3133ER2W0<br>LEI: 254900C5LP6DN9OP9V83 | Long             | DBT              | USGSE             | US        |   1000000 | PA      | $1000017.00   | 6.74%             | 2025-11-06      | Floating      | 4.15%                 | No            |                  2 | On Loan: No      |
| Guggenheim Partners Investment Management LLC | Guggenheim Strategy Fund II                                              | CUSIP: N/A<br>LEI: N/A                        | Long             | EC               | RF                | US        |    137556 | NS      | $3422385.57   | 23.05%            |  |  |  | No            |                  1 | On Loan: No      |
| US TREASURY N/B                               | U.S. Treasury Bonds                                                      | CUSIP: 912810UM8<br>LEI: 254900HROIFWPRGM1V77 | Short            | DBT              | UST               | US        | -13100000 | PA      | $-13147078.13 | -88.55%           | 2055-08-15      | Fixed         | 4.75%                 | No            |                  2 | On Loan: No      |
| Chicago Board of Trade                        | U.S. Treasury Ultra Long Bond Futures Contracts                          | CUSIP: N/A<br>LEI: N/A                        | N/A              | DIR              |  | US        |       -24 | NC      | $-20282.54    | -0.14%            |  |  |  | No            |                  1 | On Loan: No      |
| MIZUHO SECURITIES USA LLC                     | Mizuho Securities USA LLC                                                | CUSIP: N/A<br>LEI: 7TK5RJIZDFROZCA6XF66       | Long             | RA               | CORP              | US        |   4863971 | PA      | $4863970.59   | 32.76%            |  |  |  | No            |                  2 | On Loan: No      |
| TREASURY BILL                                 | U.S. Treasury Bills                                                      | CUSIP: 912797RC3<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |    139000 | PA      | $138797.24    | 0.93%             | 2025-10-14      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| Dreyfus Treasury Obligations C                | Dreyfus Treasury Obligations Cash Management Fund - Institutional Shares | CUSIP: N/A<br>LEI: 549300MKKM9KT7BF6329       | Long             | STIV             | RF                | US        |      5905 | NS      | $5904.69      | 0.04%             |  |  |  | No            |                  1 | On Loan: No      |
| FEDERAL HOME LOAN BANK                        | Federal Home Loan Bank                                                   | CUSIP: 3130B6YW0<br>LEI: 2549001DPIFGXC1TOL40 | Long             | DBT              | USGSE             | US        |    800000 | PA      | $800014.40    | 5.39%             | 2026-01-09      | Floating      | 4.13%                 | No            |                  2 | On Loan: No      |
| J.P. MORGAN SECURITIES LLC                    | J.P. Morgan Securities LLC                                               | CUSIP: N/A<br>LEI: ZBUT11V806EZRVTWT807       | Long             | RA               | CORP              | US        |   3777367 | PA      | $3777366.52   | 25.44%            |  |  |  | No            |                  2 | On Loan: No      |
| BARCLAYS CAPITAL INC.                         | Barclays Capital, Inc.                                                   | CUSIP: N/A<br>LEI: AC28XWWI3WIBK2824319       | Long             | RA               | CORP              | US        |   6956250 | PA      | $6956250.00   | 46.85%            |  |  |  | No            |                  2 | On Loan: No      |

### Signature

**Date Signed:** 2025-10-30

**Name of Applicant:** Rydex Series Funds

**Signature:** James Howley

**Name of Signer:** James Howley

**Title:** CFO