FSMAX Performance — Fidelity Extended Market Index Fund
Data updated: 2026-07-24
FSMAX returned +13.37% year to date and +30.32% over one year to May 2026. Annualised returns are +21.20% over 3 years and +6.54% over 5 years. The fund beat its US Multi-Cap Blend category average: $100 invested three years ago grew to $178, against $147 for the category, and to $130 over one year, against $119. Volatility over the past three years was 18.75% a year. In the 12 months to May 2026 the fund lost a net $5.4B, and assets reached $42.73B.
FSMAX Growth of $100
What $100 invested in Fidelity Extended Market Index Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Multi-Cap Blend category average over the same months.
| Period | FSMAX | Category average |
|---|---|---|
| 1 year (Jun 2025 – May 2026) | $130 | $119 |
| 3 years (Jun 2023 – May 2026) | $178 | $147 |
| 5 years (Jun 2021 – May 2026) | $137 | $136 |
| Since data start (Sep 2019 – May 2026) | $223 | $173 |
FSMAX Trailing Returns
Total returns to May 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +13.37% |
| 1 year | +30.32% |
| 3 years (annualised) | +21.20% |
| 5 years (annualised) | +6.54% |
FSMAX Annual Returns
Calendar-year total returns of Fidelity Extended Market Index Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–May) | +13.37% |
| 2025 | +11.39% |
| 2024 | +16.99% |
| 2023 | +25.36% |
| 2022 | −26.45% |
| 2021 | +12.42% |
| 2020 | +32.16% |
| 2019 (Sep–Dec) | +9.99% |
FSMAX Monthly Returns
Monthly total returns as reported on SEC Form N-PORT.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +2.4% | +1.1% | −4.6% | +9.9% | +4.5% | — | — | — | — | — | — | — |
| 2025 | +5.0% | −5.8% | −7.9% | −0.8% | +7.2% | +5.4% | +2.5% | +4.1% | +2.0% | +1.2% | −0.5% | −0.5% |
| 2024 | −2.4% | +6.0% | +3.4% | −6.5% | +3.4% | −0.1% | +6.2% | +0.3% | +1.5% | +0.6% | +12.0% | −7.0% |
| 2023 | +10.8% | −1.6% | −2.9% | −2.2% | +0.4% | +8.3% | +5.9% | −4.1% | −4.9% | −6.2% | +11.2% | +10.4% |
| 2022 | −10.1% | 0.0% | +0.9% | −10.6% | −2.2% | −9.2% | +10.3% | −2.1% | −9.9% | +8.5% | +3.6% | −6.5% |
| 2021 | +2.8% | +5.2% | −0.4% | +4.2% | −0.7% | +3.5% | −1.2% | +2.0% | −4.0% | +5.5% | −5.0% | +0.6% |
| 2020 | −0.6% | −8.0% | −21.4% | +15.8% | +8.8% | +4.1% | +5.7% | +7.2% | −3.0% | +0.5% | +18.3% | +7.2% |
| 2019 | — | — | — | — | — | — | — | — | +1.0% | +1.9% | +4.6% | +2.2% |
FSMAX Risk
Risk measures from monthly returns over Jun 2023 – May 2026.
- 3-year volatility (annualised): 18.75%
- 3-year Sharpe ratio: 0.89 (vs 4.5% risk-free rate)
- Best month: +11.97% (Nov 2024)
- Worst month: −7.92% (Mar 2025)
FSMAX Fund Flows
Monthly money in and out of Fidelity Extended Market Index Fund, from SEC Form N-PORT.
- 12-month net flow: −$5.4B
- 12-month gross sales (incl. reinvestments): $7.9B
- Sales ÷ redemptions: 0.59×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| May 2026 | $445.3M | $1.9B | −$1.4B |
| Apr 2026 | $564.4M | $899.3M | −$334.9M |
| Mar 2026 | $902.8M | $1.1B | −$240.5M |
| Feb 2026 | $778.1M | $887.4M | −$109.4M |
| Jan 2026 | $578.0M | $978.7M | −$400.6M |
| Dec 2025 | $1.0B | $1.6B | −$533.5M |
| Nov 2025 | $476.8M | $705.8M | −$229.0M |
| Oct 2025 | $435.5M | $892.3M | −$456.7M |
| Sep 2025 | $905.9M | $1.4B | −$448.9M |
| Aug 2025 | $514.8M | $694.0M | −$179.2M |
| Jul 2025 | $685.4M | $1.2B | −$551.7M |
| Jun 2025 | $543.3M | $1.0B | −$464.7M |
FSMAX Assets Under Management
Net assets of Fidelity Extended Market Index Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-05-31 | $42.73B |
| 2026-02-28 | $40.95B |
| 2025-11-30 | $41.03B |
| 2025-08-31 | $41.05B |
| 2025-05-31 | $37.61B |
| 2025-02-28 | $39.44B |
| 2024-11-30 | $44.55B |
| 2024-08-31 | $41.89B |
| 2024-05-31 | $37.64B |
| 2024-02-29 | $38.36B |
| 2023-11-30 | $32.90B |
| 2023-08-31 | $33.03B |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.