RYBCX
Basic Materials Fund
Rydex Series Funds
Expense ratio1
2.40%
Net assets2
$39.59M
Holdings2
104
Category
International Equity
2025 return3
32.19%

Investment objective & strategy

As of July 29, 2024 · prospectus

Objective. The Basic Materials Fund (the Fund) seeks to provide capital appreciation by investing in companies engaged in the mining, manufacture, or sale of basic materials, such as lumber, steel, iron, aluminum, concrete, chemicals and other basic building and manufacturing materials (Basic Materials Companies).

Strategy. Under normal circumstances, the Fund invests substantially all (at least 80%) of its net assets in equity securities of Basic Materials Companies that are traded in the United States and in derivatives, which primarily consist of futures contracts and options on securities, futures contracts, and stock indices. The Advisor employs a proprietary quantitative and qualitative methodology to identify Basic Materials Companies in which to invest. The methodology utilizes screens based on price, liquidity, and tradability. The securities are then weighted using a proprietary modified capitalization weighting methodology. The portfolio may be further adjusted to comply with regulatory investment limitations or as determined appropriate by the Advisor. The Fund may invest to a significant extent in the securities of Basic Materials … Under normal circumstances, the Fund invests substantially all (at least 80%) of its net assets in equity securities of Basic Materials Companies that are traded in the United States and in derivatives, which primarily consist of futures contracts and options on securities, futures contracts, and stock indices. The Advisor employs a proprietary quantitative and qualitative methodology to identify Basic Materials Companies in which to invest. The methodology utilizes screens based on price, liquidity, and tradability. The securities are then weighted using a proprietary modified capitalization weighting methodology. The portfolio may be further adjusted to comply with regulatory investment limitations or as determined appropriate by the Advisor. The Fund may invest to a significant extent in the securities of Basic Materials Companies that have small to mid-sized capitalizations. Basic Materials Companies are engaged in the manufacture, mining, processing, or distribution of raw materials and intermediate goods used in the industrials sector, and may be involved in the production and transportation of metals, textiles, and wood products. The Fund also may purchase American Depositary Receipts (ADRs) to gain exposure to foreign Basic Materials Companies and U.S. government securities. Investments in derivative instruments, such as futures and options, have the economic effect of creating financial leverage in the Funds portfolio because such investments may give rise to losses that exceed the amount the Fund has invested in those instruments. Financial leverage will magnify, sometimes significantly, the Funds exposure to any increase or decrease in prices associated with a particular reference asset resulting in increased volatility in the value of the Funds portfolio. The value of the Funds portfolio is likely to experience greater volatility over short-term periods. While such financial leverage has the potential to produce greater gains, it also may result in greater losses, which in some cases may cause the Fund to liquidate other portfolio investments at a loss to comply with limits on leverage imposed by the Investment Company Act of 1940, satisfy margin or collateral requirements, or meet redemption requests. In an effort to ensure that the Fund is fully invested on a day-to-day basis, the Fund may conduct any necessary trading activity at or just prior to the close of the U.S. financial markets. As of June 30, 2024, the Fund has significant exposure to the Materials Sector, as that sector is defined by the Global Industry Classification Standard, a widely recognized industry classification methodology developed by MSCI, Inc. and Standard & Poors Financial Services LLC. Also, as of June 30, 2024, the Funds investments are concentrated ( i.e. , more than 25% of its assets) in securities issued by companies in the Chemicals Industry and Metals & Mining Industry, separate industries within the Materials Sector.

Top holdings

As of March 31, 2026 · N-PORT
SecurityTickerValue% of fund
LINDE PLC $1.50M 3.79%
NEWMONT CORP $1.05M 2.66%
FREEPORT MCMORAN INC $927.55K 2.34%
SHERWIN WILLIAMS CO $866.13K 2.19%
ECOLAB INC $803.11K 2.03%
AIR PRODUCTS and CHEMICALS INC $781.71K 1.97%
CORTEVA INC $758.50K 1.92%
COEUR MINING INC $627.01K 1.58%
NUCOR CORP $624.99K 1.58%
VULCAN MATERIALS CO $606.14K 1.53%
View all holdings →

Allocation by sector

As of March 31, 2026 · N-PORT
View portfolio breakdown →

Portfolio moves

Dec 31, 2025 → Mar 31, 2026
Opened
5
Exited
4
Increased
85
Decreased
13
Unchanged
1

How many positions this fund opened, exited, grew, trimmed, or left unchanged between its two most recent N-PORT snapshots — net changes between point-in-time reports, not a trade log.

View portfolio moves →

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Advisers

As of March 31, 2025 · N-CEN
FirmRole
Security Investors, LLC Adviser

Footnotes

  1. Expense ratio as of July 29, 2024, from the fund's prospectus.
  2. Net assets and holdings count as of March 31, 2026, from the fund's N-PORT filing.
  3. Total return for calendar year 2025, before tax and after fund expenses. Computed by compounding the twelve monthly total returns the fund reported in its SEC N-PORT filings for 2025 (the latest prospectus does not yet chart this year).

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