RYBMX — Basic Materials Fund
Data updated: 2026-08-28
RYBMX — Basic Materials Fund. Global (incl. US) Mid Cap Blend / Core Materials Equity · $34.05M AUM. Holdings, fees, performance and SEC filings.
RYBMX Fund Overview
RYBMX — Basic Materials Fund is a US mutual fund managed by Rydex Series Funds, categorised as Global (incl. US) Mid Cap Blend / Core Materials Equity. ABC INVEST provides holdings, performance, costs, cashflows, risk data, prospectus documents and SEC filings, sourced from SEC filings.
- Type: US mutual fund
- Manager: Rydex Series Funds
- Category: Global (incl. US) Mid Cap Blend / Core Materials Equity
- Assets under management: $34.05M
- 1-year return: 29.8%
- Ticker: RYBMX
- SEC CIK: 0000899148
- SEC series ID: S000003810
- Share class ID: C000010628
RYBMX Holdings
Top 10 holdings of Basic Materials Fund by percentage of net assets, from the fund's latest SEC N-PORT filing.
| Holding | % of net assets |
|---|---|
| Linde PLC | 4.15% |
| Newmont Corp. | 2.62% |
| Sherwin-Williams Company (the) | 2.45% |
| Freeport-Mcmoran, Inc. | 2.43% |
| Ecolab, Inc. | 2.28% |
| Air Products And Chemicals, Inc. | 2.20% |
| Corteva, Inc. | 2.13% |
| Nucor Corp. | 1.72% |
| Vulcan Materials Company | 1.69% |
| Anglogold Ashanti PLC | 1.63% |
RYBMX Portfolio Allocation
Asset-class allocation of Basic Materials Fund by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 99.3% |
| Cash & Equivalents | 0.9% |
RYBMX Performance
Total returns for RYBMX (as of 2026-09-01), from SEC filings.
| Period | Total return |
|---|---|
| YTD | 7.3% |
| 1 year | 29.8% |
| 3 years (annualised) | 13.6% |
| 5 years (annualised) | 7.8% |
RYBMX Risk Information
Risk metrics for RYBMX, derived from monthly returns in SEC filings.
- 1-year volatility (annualised): 24.3%
RYBMX Costs and Fees
RYBMX costs about $165 per $10,000 invested per year in fund expenses.
- Net expense ratio: 1.65%
- Gross expense ratio: 1.68%
- Portfolio turnover: 49%
- Brokerage commissions: 7.13 bps of average net assets (SEC N-CEN)
RYBMX Cashflows
Over the 12 months to 2026-06, Basic Materials Fund had net inflows of $6.53M, from monthly SEC N-PORT filings.
| Month | Net flow |
|---|---|
| 2026-06 | −$6.01M |
| 2026-05 | $2.94M |
| 2026-04 | −$1.84M |
| 2026-03 | −$1.20M |
| 2026-02 | −$105.32K |
| 2026-01 | $9.08M |
RYBMX Debt Constituents
No individual debt constituents are reported in Basic Materials Fund's latest SEC N-PORT filing.
RYBMX Prospectus and SEC Filings
Official Basic Materials Fund filings on SEC EDGAR — prospectus, portfolio holdings and annual reports.
- Prospectus (485BPOS) — filed 2024-07-29
- Prospectus (485BPOS) — filed 2023-07-31
- Prospectus (485BPOS) — filed 2022-07-29
- Portfolio holdings (N-PORT) — filed 2026-08-28
- Portfolio holdings (N-PORT) — filed 2026-06-01
- Portfolio holdings (N-PORT) — filed 2026-03-02
- Annual census (N-CEN) — filed 2026-06-15
- Annual census (N-CEN) — filed 2025-06-13
Related Funds
Other Global (incl. US) Mid Cap Blend / Core Materials Equity funds tracked on ABC INVEST:
Data Sources
ABC INVEST compiles this page from public filings made to the U.S. Securities and Exchange Commission (SEC) through EDGAR: portfolio holdings and monthly cashflows from Form N-PORT, expenses and returns from fund prospectuses (Form 485BPOS) and the SEC DERA Risk/Return Summary data sets, annual data from Form N-CEN, and shareholder reports from Form N-CSR.