Investment objective & strategy
As of April 29, 2025 · prospectusObjective. Fidelity Flex 500 Index Fund seeks to provide investment results that correspond to the total return of stocks of large capitalization U.S. companies.
Strategy. Prior to July 21, 2025, normally investing at least 80% of assets in common stocks included in the S&P 500 Index, which broadly represents the performance of common stocks publicly traded in the United States.Effective July 21, 2025, normally investing at least 80% of assets in securities included in the Fidelity U.S. Large Cap IndexSM. The Fidelity U.S. Large Cap IndexSM is a float-adjusted market capitalization-weighted index designed to reflect the performance of U.S. large capitalization stocks. It is a subset of the Fidelity U.S. Total Investable Market IndexSM (a float-adjusted market capitalization-weighted index designed to reflect the performance of the U.S. equity market, including large-, mid-, and small-capitalization stocks) representing the largest companies. Large capitalization stocks are considered to … Prior to July 21, 2025, normally investing at least 80% of assets in common stocks included in the S&P 500 Index, which broadly represents the performance of common stocks publicly traded in the United States.Effective July 21, 2025, normally investing at least 80% of assets in securities included in the Fidelity U.S. Large Cap IndexSM. The Fidelity U.S. Large Cap IndexSM is a float-adjusted market capitalization-weighted index designed to reflect the performance of U.S. large capitalization stocks. It is a subset of the Fidelity U.S. Total Investable Market IndexSM (a float-adjusted market capitalization-weighted index designed to reflect the performance of the U.S. equity market, including large-, mid-, and small-capitalization stocks) representing the largest companies. Large capitalization stocks are considered to be stocks of the largest 500 U.S. companies based on float-adjusted market capitalization. The Fidelity U.S. Large Cap IndexSM was created by Fidelity Product Services LLC (FPS) using a rules-based proprietary index methodology that includes all U.S. stocks meeting certain market capitalization, liquidity and investability requirements. Lending securities to earn income for the fund.
Top holdings
As of Feb. 28, 2026 · N-PORT| Security | Ticker | Value | % of fund |
|---|---|---|---|
| NVIDIA CORP | — | $589.30M | 7.23% |
| APPLE INC | — | $534.26M | 6.56% |
| MICROSOFT CORP | — | $399.51M | 4.90% |
| AMAZON.COM INC | — | $279.61M | 3.43% |
| ALPHABET INC CL A | — | $247.50M | 3.04% |
| BROADCOM INC | — | $206.54M | 2.53% |
| ALPHABET INC CL C | — | $198.97M | 2.44% |
| META PLATFORMS INC CL A | — | $193.22M | 2.37% |
| TESLA INC | — | $154.79M | 1.90% |
| BERKSHIRE HATH-B | — | $126.72M | 1.56% |
Portfolio moves
Nov 30, 2025 → Feb 28, 2026How 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.
Similar funds
Funds whose portfolios most overlap this one, by weight| Fund | Overlap | Net exp. |
|---|---|---|
| Fidelity 500 Index Fund · FXAIX | 97% | 0.01% |
| Stock Index Fund · VSTIX | 97% | 0.23% |
| State Street S&P 500 Index Fund · SVSPX | 97% | 0.16% |
Advisers
| Firm | Role |
|---|---|
| Fidelity Management & Research Company LLC | Adviser |
| Geode Capital Management, LLC | Sub-adviser |
Footnotes
- Expense ratio as of April 24, 2025, from the fund's prospectus.
- Net assets and holdings count as of February 28, 2026, from the fund's N-PORT filing.
- 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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