# Biotechnology Fund

Biotechnology Fund is a registered fund series of Rydex Series Funds (series S000003802). Net assets $135.1M as of 2026-03-31.

## Profile

- Series ID: S000003802
- Registrant: Rydex Series Funds
- LEI: 549300YENG103R306541
- Net assets: $135.1M
- Total assets: $135.3M
- As of: 2026-03-31

## Advisers

- [Security Investors, LLC (Advisor)](https://search.stillhousedata.com/firm/105477)

## Top holdings (200 reported)

_Showing 15 of 200 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [AbbVie Inc.](https://search.stillhousedata.com/security/00287Y109) | ABBV | $10.0M | 739.47% |
| [AbbVie Inc.](https://search.stillhousedata.com/security/00287Y109) | ABBV | $10.0M | 739.47% |
| [AbbVie Inc.](https://search.stillhousedata.com/security/00287Y109) | — | $10.0M | 739.47% |
| [AbbVie Inc.](https://search.stillhousedata.com/security/00287Y109) | ABBV | $10.0M | 739.47% |
| [AbbVie Inc.](https://search.stillhousedata.com/security/00287Y109) | ABBV | $10.0M | 739.47% |
| [Amgen Inc.](https://search.stillhousedata.com/security/031162100) | AMGN | $7.1M | 523.42% |
| [Amgen Inc.](https://search.stillhousedata.com/security/031162100) | AMGN | $7.1M | 523.42% |
| [Amgen Inc.](https://search.stillhousedata.com/security/031162100) | AMGN | $7.1M | 523.42% |
| [Amgen Inc.](https://search.stillhousedata.com/security/031162100) | AMGN | $7.1M | 523.42% |
| [Amgen Inc.](https://search.stillhousedata.com/security/031162100) | — | $7.1M | 523.42% |
| [Gilead Sciences Inc.](https://search.stillhousedata.com/security/375558103) | GILD | $6.7M | 495.72% |
| [Gilead Sciences Inc.](https://search.stillhousedata.com/security/375558103) | — | $6.7M | 495.72% |
| [Gilead Sciences Inc.](https://search.stillhousedata.com/security/375558103) | GILD | $6.7M | 495.72% |
| [Gilead Sciences Inc.](https://search.stillhousedata.com/security/375558103) | GILD | $6.7M | 495.72% |
| [Gilead Sciences Inc.](https://search.stillhousedata.com/security/375558103) | GILD | $6.7M | 495.72% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-03-31 | $135.1M |
| 2025-12-31 | $109.0M |
| 2025-09-30 | $90.0M |
| 2025-06-30 | $82.7M |
| 2025-03-31 | $87.3M |
| 2024-12-31 | $91.7M |
| 2024-09-30 | $111.2M |
| 2024-06-30 | $109.3M |

## More

- [Registrant: Rydex Series Funds](https://search.stillhousedata.com/registrant/899148)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000003802.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.