FSSNX Performance — Fidelity Small Cap Index Fund
Data updated: 2026-09-23
FSSNX returned +18.93% year to date and +34.31% over one year to Jul 2026. Annualised returns are +15.23% over 3 years and +7.24% over 5 years. The fund beat its US Small Blend category average: $100 invested three years ago grew to $153, against $146 for the category, and to $134 over one year, against $129. Volatility over the past three years was 19.97% a year. In the 12 months to Jul 2026 the fund lost a net $230.1M, and assets reached $34.07B.
FSSNX Growth of $100
What $100 invested in Fidelity Small Cap Index Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Small Blend category average over the same months.
| Period | FSSNX | Category average |
|---|---|---|
| 1 year (Aug 2025 – Jul 2026) | $134 | $129 |
| 3 years (Aug 2023 – Jul 2026) | $153 | $146 |
| 5 years (Aug 2021 – Jul 2026) | $142 | $141 |
| Since data start (Aug 2019 – Jul 2026) | $206 | $204 |
FSSNX Trailing Returns
Total returns to Jul 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +18.93% |
| 1 year | +34.31% |
| 3 years (annualised) | +15.23% |
| 5 years (annualised) | +7.24% |
FSSNX Annual Returns
Calendar-year total returns of Fidelity Small Cap Index Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jul) | +18.93% |
| 2025 | +12.93% |
| 2024 | +11.70% |
| 2023 | +17.13% |
| 2022 | −20.28% |
| 2021 | +14.70% |
| 2020 | +20.00% |
| 2019 (Aug–Dec) | +6.80% |
FSSNX 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 | +5.4% | +0.8% | −5.0% | +12.2% | +4.4% | +3.7% | −3.0% | — | — | — | — | — |
| 2025 | +2.6% | −5.3% | −6.8% | −2.3% | +5.3% | +5.4% | +1.8% | +7.1% | +3.1% | +1.8% | +1.0% | −0.6% |
| 2024 | −3.9% | +5.7% | +3.6% | −7.0% | +5.0% | −0.9% | +10.2% | −1.5% | +0.7% | −1.4% | +11.0% | −8.2% |
| 2023 | +9.8% | −1.7% | −4.8% | −1.8% | −0.9% | +8.1% | +6.2% | −5.0% | −5.9% | −6.8% | +9.0% | +12.2% |
| 2022 | −9.6% | +1.1% | +1.2% | −9.9% | +0.2% | −8.2% | +10.5% | −2.0% | −9.6% | +11.0% | +2.4% | −6.5% |
| 2021 | +5.0% | +6.2% | +1.0% | +2.1% | +0.2% | +1.9% | −3.6% | +2.2% | −3.0% | +4.2% | −4.2% | +2.2% |
| 2020 | −3.2% | −8.4% | −21.7% | +13.8% | +6.5% | +3.6% | +2.8% | +5.6% | −3.3% | +2.1% | +18.4% | +8.6% |
| 2019 | — | — | — | — | — | — | — | −4.9% | +2.1% | +2.6% | +4.1% | +2.9% |
FSSNX Risk
Risk measures from monthly returns over Aug 2023 – Jul 2026.
- 3-year volatility (annualised): 19.97%
- 3-year Sharpe ratio: 0.54 (vs 4.5% risk-free rate)
- Best month: +12.24% (Apr 2026)
- Worst month: −8.22% (Dec 2024)
FSSNX Fund Flows
Monthly money in and out of Fidelity Small Cap Index Fund, from SEC Form N-PORT.
- 12-month net flow: −$230.1M
- 12-month gross sales (incl. reinvestments): $9.6B
- Sales ÷ redemptions: 0.98×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jul 2026 | $829.5M | $627.3M | $202.1M |
| Jun 2026 | $1.4B | $1.7B | −$286.3M |
| May 2026 | $677.0M | $662.6M | $14.4M |
| Apr 2026 | $664.8M | $590.1M | $74.7M |
| Mar 2026 | $940.9M | $588.0M | $352.9M |
| Feb 2026 | $802.6M | $673.8M | $128.8M |
| Jan 2026 | $916.7M | $1.3B | −$387.2M |
| Dec 2025 | $995.9M | $1.2B | −$229.7M |
| Nov 2025 | $615.2M | $629.1M | −$13.8M |
| Oct 2025 | $807.6M | $715.6M | $92.0M |
| Sep 2025 | $500.4M | $601.4M | −$101.0M |
| Aug 2025 | $456.4M | $533.3M | −$76.9M |
FSSNX Assets Under Management
Net assets of Fidelity Small Cap Index Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-07-31 | $34.07B |
| 2026-04-30 | $32.56B |
| 2026-01-31 | $29.73B |
| 2025-10-31 | $29.03B |
| 2025-07-31 | $25.89B |
| 2025-04-30 | $23.69B |
| 2025-01-31 | $27.16B |
| 2024-10-31 | $26.87B |
| 2024-07-31 | $28.52B |
| 2024-04-30 | $24.70B |
| 2024-01-31 | $24.79B |
| 2023-10-31 | $20.23B |
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.