Investment objective & strategy
As of Aug. 26, 2025 · prospectusObjective. Fidelity Mid Cap Growth Index Fund seeks to provide investment results that correspond to the total return of stocks of mid-capitalization U.S. companies.
Strategy. Normally investing at least 80% of assets in securities included in the Russell Midcap Growth Index. The Russell Midcap Growth Index is a market capitalization-weighted index designed to measure the performance of the mid-cap growth segment of the U.S. equity market. It includes those Russell MidCap Index companies with higher price-to-book ratios and higher forecasted growth values. Effective March 24, 2025, the Russell Midcap Growth Index applies a capping methodology. Index constituents are capped quarterly so that no more than 22.5% of the index weight may be allocated to a single constituent, and the sum of the weights of all constituents representing more than 4.5% of the index should not exceed 45% of the total index weight. For periods prior … Normally investing at least 80% of assets in securities included in the Russell Midcap Growth Index. The Russell Midcap Growth Index is a market capitalization-weighted index designed to measure the performance of the mid-cap growth segment of the U.S. equity market. It includes those Russell MidCap Index companies with higher price-to-book ratios and higher forecasted growth values. Effective March 24, 2025, the Russell Midcap Growth Index applies a capping methodology. Index constituents are capped quarterly so that no more than 22.5% of the index weight may be allocated to a single constituent, and the sum of the weights of all constituents representing more than 4.5% of the index should not exceed 45% of the total index weight. For periods prior to March 24, 2025, the index was uncapped. Effective December 11, 2025, derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the fund's 80% policy, consistent with the fund's investment policies and limitations with respect to investments in derivatives. Using statistical sampling techniques based on such factors as capitalization, industry exposures, dividend yield, price-to-earnings (P/E) ratio, price-to-book (P/B) ratio, and earnings growth to attempt to replicate the returns of the Russell Midcap Growth Index. Lending securities to earn income for the fund.
Top holdings
As of March 31, 2026 · N-PORT| Security | Ticker | Value | % of fund |
|---|---|---|---|
| VERTIV HOLDINGS CO | — | $116.44M | 3.42% |
| Fidelity Securities Lending Cash Central Fund | — | $113.24M | 3.33% |
| HOWMET AEROSPACE INC | — | $112.88M | 3.32% |
| ROYAL CARIBBEAN CRUISES LTD | — | $85.16M | 2.50% |
| HILTON WORLDWIDE HOLDINGS INC | — | $84.71M | 2.49% |
| CLOUDFLARE INC-A | — | $79.01M | 2.32% |
| QUANTA SVCS INC | — | $76.51M | 2.25% |
| CENCORA INC | — | $70.26M | 2.06% |
| TARGA RESOURCES CORP | — | $65.05M | 1.91% |
| VISTRA CORP | — | $62.12M | 1.82% |
Portfolio moves
Dec 31, 2025 → Mar 31, 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. |
|---|---|---|
| VOYA RUSSELLTM MID CAP GROWTH INDEX PORTFOLIO · IRGJX, IRGUX, IRGVX | 96% | 0.40% |
| iShares Russell Mid-Cap Growth ETF · IWP | 96% | 0.23% |
| Global Atlantic BlackRock Disciplined Mid Cap Growth Portfolio | 79% | 0.66% |
Advisers
| Firm | Role |
|---|---|
| Fidelity Management & Research Company LLC | Adviser |
| Geode Capital Management, LLC | Sub-adviser |
Footnotes
- Expense ratio as of August 26, 2025, from the fund's prospectus.
- Net assets and holdings count as of March 31, 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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