FUMIX Performance — Fidelity SAI U.S. Momentum Index Fund
Data updated: 2026-10-13
FUMIX returned +21.43% year to date and +25.98% over one year to Jul 2026. Annualised returns are +27.67% over 3 years and +14.43% over 5 years. The fund beat its US Large Growth category average: $100 invested three years ago grew to $208, against $166 for the category, and to $126 over one year, against $111. Volatility over the past three years was 18.37% a year. In the 12 months to Jul 2026 the fund lost a net $3.7B, and assets reached $2.48B.
FUMIX Growth of $100
What $100 invested in Fidelity SAI U.S. Momentum Index Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Large Growth category average over the same months.
| Period | FUMIX | Category average |
|---|---|---|
| 1 year (Aug 2025 – Jul 2026) | $126 | $111 |
| 3 years (Aug 2023 – Jul 2026) | $208 | $166 |
| 5 years (Aug 2021 – Jul 2026) | $196 | $158 |
| Since data start (Aug 2019 – Jul 2026) | $305 | $261 |
FUMIX Trailing Returns
Total returns to Jul 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +21.43% |
| 1 year | +25.98% |
| 3 years (annualised) | +27.67% |
| 5 years (annualised) | +14.43% |
FUMIX Annual Returns
Calendar-year total returns of Fidelity SAI U.S. Momentum Index Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jul) | +21.43% |
| 2025 | +16.96% |
| 2024 | +33.26% |
| 2023 | +14.61% |
| 2022 | −15.78% |
| 2021 | +22.63% |
| 2020 | +30.00% |
| 2019 (Aug–Dec) | +4.58% |
FUMIX 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 | +1.9% | +0.1% | −5.1% | +16.3% | +9.9% | +7.3% | −8.5% | — | — | — | — | — |
| 2025 | +5.0% | 0.0% | −6.8% | +3.1% | +8.6% | +3.3% | −0.4% | +1.3% | +4.3% | −0.2% | −0.9% | −0.6% |
| 2024 | +5.1% | +9.4% | +3.3% | −4.9% | +5.1% | +5.3% | −1.9% | +3.3% | +2.8% | −0.4% | +5.8% | −3.1% |
| 2023 | −0.2% | −3.9% | +0.8% | +1.9% | −3.4% | +7.1% | +2.3% | +0.5% | −4.9% | −1.8% | +11.4% | +5.0% |
| 2022 | −8.7% | −3.0% | +4.5% | −10.2% | +0.4% | −7.7% | +7.6% | −2.3% | −6.6% | +12.5% | +3.2% | −4.1% |
| 2021 | +1.4% | +0.1% | −0.7% | +6.1% | 0.0% | +5.3% | +1.4% | +3.5% | −4.2% | +9.0% | −1.4% | +0.8% |
| 2020 | +3.3% | −7.5% | −10.9% | +11.8% | +6.1% | +3.9% | +6.5% | +9.6% | −3.9% | −3.7% | +10.6% | +3.7% |
| 2019 | — | — | — | — | — | — | — | +1.2% | −1.2% | +0.3% | +2.6% | +1.6% |
FUMIX Risk
Risk measures from monthly returns over Aug 2023 – Jul 2026.
- 3-year volatility (annualised): 18.37%
- 3-year Sharpe ratio: 1.26 (vs 4.5% risk-free rate)
- Best month: +16.30% (Apr 2026)
- Worst month: −8.48% (Jul 2026)
FUMIX Fund Flows
Monthly money in and out of Fidelity SAI U.S. Momentum Index Fund, from SEC Form N-PORT.
- 12-month net flow: −$3.7B
- 12-month gross sales (incl. reinvestments): $2.9B
- Sales ÷ redemptions: 0.44×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jul 2026 | $7.9M | $25.6M | −$17.7M |
| Jun 2026 | $8.1M | $4.6B | −$4.6B |
| May 2026 | $8.5M | $1.8B | −$1.8B |
| Apr 2026 | $12.8M | $27.3M | −$14.5M |
| Mar 2026 | $36.4M | $11.8M | $24.7M |
| Feb 2026 | $397.3M | $14.3M | $383.1M |
| Jan 2026 | $333.0M | $10.4M | $322.6M |
| Dec 2025 | $854.5M | $10.3M | $844.3M |
| Nov 2025 | $771.9M | $10.3M | $761.6M |
| Oct 2025 | $215.2M | $11.5M | $203.7M |
| Sep 2025 | $115.9M | $10.8M | $105.2M |
| Aug 2025 | $153.3M | $9.6M | $143.8M |
FUMIX Assets Under Management
Net assets of Fidelity SAI U.S. Momentum Index Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-07-31 | $2.48B |
| 2026-04-30 | $8.13B |
| 2026-01-31 | $6.98B |
| 2025-10-31 | $5.11B |
| 2025-07-31 | $4.44B |
| 2025-04-30 | $4.08B |
| 2025-01-31 | $3.12B |
| 2024-10-31 | $664.03M |
| 2024-07-31 | $645.62M |
| 2024-04-30 | $612.00M |
| 2024-01-31 | $324.98M |
| 2023-10-31 | $296.92M |
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.