FIONX Performance — Fidelity SAI International Index Fund
Data updated: 2026-09-23
FIONX returned +11.74% year to date and +25.26% over one year to Jul 2026. Annualised returns are +16.19% over 3 years and +9.41% over 5 years. The fund beat its International Large Blend category average: $100 invested three years ago grew to $157, against $153 for the category, and to $125 over one year, against $123. Volatility over the past three years was 12.72% a year. In the 12 months to Jul 2026 the fund took in a net $242.5M, and assets reached $9.31B.
FIONX Growth of $100
What $100 invested in Fidelity SAI International Index Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the International Large Blend category average over the same months.
| Period | FIONX | Category average |
|---|---|---|
| 1 year (Aug 2025 – Jul 2026) | $125 | $123 |
| 3 years (Aug 2023 – Jul 2026) | $157 | $153 |
| 5 years (Aug 2021 – Jul 2026) | $157 | $147 |
| Since data start (Aug 2019 – Jul 2026) | $203 | $194 |
FIONX Trailing Returns
Total returns to Jul 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +11.74% |
| 1 year | +25.26% |
| 3 years (annualised) | +16.19% |
| 5 years (annualised) | +9.41% |
FIONX Annual Returns
Calendar-year total returns of Fidelity SAI International Index Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jul) | +11.74% |
| 2025 | +31.84% |
| 2024 | +3.69% |
| 2023 | +18.23% |
| 2022 | −14.34% |
| 2021 | +11.25% |
| 2020 | +8.16% |
| 2019 (Aug–Dec) | +8.99% |
FIONX 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 | +5.0% | +4.7% | −8.2% | +5.7% | +2.5% | +0.5% | +1.6% | — | — | — | — | — |
| 2025 | +5.0% | +2.9% | −0.1% | +4.1% | +4.8% | +2.5% | −2.4% | +4.7% | +2.4% | +1.0% | +0.6% | +2.9% |
| 2024 | −0.4% | +2.8% | +3.4% | −3.1% | +5.0% | −2.1% | +2.9% | +3.3% | +0.9% | −5.5% | −0.2% | −2.8% |
| 2023 | +8.5% | −2.9% | +3.1% | +2.8% | −4.0% | +4.5% | +2.7% | −3.8% | −3.6% | −3.2% | +8.5% | +5.4% |
| 2022 | −3.8% | −3.2% | +0.1% | −6.6% | +1.9% | −9.1% | +5.2% | −5.8% | −9.4% | +5.9% | +13.7% | −1.8% |
| 2021 | −1.2% | +2.2% | +2.4% | +3.0% | +3.7% | −1.5% | +0.8% | +1.6% | −3.4% | +3.0% | −4.3% | +4.7% |
| 2020 | −2.5% | −7.7% | −14.5% | +6.4% | +5.2% | +3.3% | +2.1% | +5.0% | −2.2% | −4.0% | +14.9% | +5.0% |
| 2019 | — | — | — | — | — | — | — | −2.0% | +3.1% | +3.4% | +1.2% | +3.1% |
FIONX Risk
Risk measures from monthly returns over Aug 2023 – Jul 2026.
- 3-year volatility (annualised): 12.72%
- 3-year Sharpe ratio: 0.92 (vs 4.5% risk-free rate)
- Best month: +8.48% (Nov 2023)
- Worst month: −8.22% (Mar 2026)
FIONX Fund Flows
Monthly money in and out of Fidelity SAI International Index Fund, from SEC Form N-PORT.
- 12-month net flow: $242.5M
- 12-month gross sales (incl. reinvestments): $1.8B
- Sales ÷ redemptions: 1.16×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jul 2026 | $31.0M | $51.0M | −$20.0M |
| Jun 2026 | $34.9M | $56.1M | −$21.1M |
| May 2026 | $97.9M | $54.5M | $43.4M |
| Apr 2026 | $394.7M | $64.5M | $330.2M |
| Mar 2026 | $378.2M | $47.0M | $331.2M |
| Feb 2026 | $31.4M | $685.6M | −$654.2M |
| Jan 2026 | $32.0M | $113.9M | −$81.8M |
| Dec 2025 | $287.4M | $106.9M | $180.5M |
| Nov 2025 | $400.0M | $45.8M | $354.2M |
| Oct 2025 | $38.2M | $49.5M | −$11.3M |
| Sep 2025 | $29.6M | $92.5M | −$62.9M |
| Aug 2025 | $37.9M | $183.4M | −$145.6M |
FIONX Assets Under Management
Net assets of Fidelity SAI International Index Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-07-31 | $9.31B |
| 2026-04-30 | $8.89B |
| 2026-01-31 | $8.68B |
| 2025-10-31 | $7.78B |
| 2025-07-31 | $7.40B |
| 2025-04-30 | $7.25B |
| 2025-01-31 | $9.10B |
| 2024-10-31 | $8.46B |
| 2024-07-31 | $8.62B |
| 2024-04-30 | $6.66B |
| 2024-01-31 | $6.34B |
| 2023-10-31 | $4.68B |
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.