SWISX Performance — Schwab International Index Fund
Data updated: 2026-09-24
SWISX returned +11.84% year to date and +25.25% over one year to Jul 2026. Annualised returns are +16.07% over 3 years and +9.35% over 5 years. The fund beat its International Large Blend category average: $100 invested three years ago grew to $156, against $153 for the category, and to $125 over one year, against $123. Volatility over the past three years was 12.81% a year. In the 12 months to Jul 2026 the fund took in a net $1.0B, and assets reached $14.81B.
SWISX Growth of $100
What $100 invested in Schwab 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 | SWISX | Category average |
|---|---|---|
| 1 year (Aug 2025 – Jul 2026) | $125 | $123 |
| 3 years (Aug 2023 – Jul 2026) | $156 | $153 |
| 5 years (Aug 2021 – Jul 2026) | $156 | $147 |
| Since data start (Aug 2019 – Jul 2026) | $203 | $194 |
SWISX Trailing Returns
Total returns to Jul 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +11.84% |
| 1 year | +25.25% |
| 3 years (annualised) | +16.07% |
| 5 years (annualised) | +9.35% |
SWISX Annual Returns
Calendar-year total returns of Schwab International Index Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jul) | +11.84% |
| 2025 | +31.57% |
| 2024 | +3.52% |
| 2023 | +18.16% |
| 2022 | −14.27% |
| 2021 | +11.31% |
| 2020 | +8.13% |
| 2019 (Aug–Dec) | +9.10% |
SWISX 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 | +5.1% | +4.7% | −8.2% | +5.8% | +2.4% | +0.6% | +1.6% | — | — | — | — | — |
| 2025 | +5.0% | +3.0% | −0.2% | +4.1% | +4.6% | +2.6% | −2.5% | +4.8% | +2.4% | +0.9% | +0.7% | +2.7% |
| 2024 | −0.4% | +2.9% | +3.3% | −3.2% | +5.2% | −2.1% | +2.9% | +3.5% | +0.7% | −5.5% | −0.2% | −2.9% |
| 2023 | +8.6% | −3.0% | +3.1% | +2.8% | −4.0% | +4.5% | +2.7% | −3.9% | −3.6% | −3.1% | +8.6% | +5.4% |
| 2022 | −3.8% | −3.0% | −0.1% | −6.5% | +1.9% | −9.0% | +5.2% | −5.9% | −9.3% | +5.9% | +13.7% | −1.8% |
| 2021 | −1.4% | +2.4% | +2.4% | +2.9% | +3.8% | −1.4% | +0.8% | +1.5% | −3.3% | +3.1% | −4.5% | +4.9% |
| 2020 | −2.6% | −7.6% | −14.7% | +6.6% | +5.5% | +3.3% | +2.0% | +4.9% | −2.2% | −4.0% | +14.9% | +5.1% |
| 2019 | — | — | — | — | — | — | — | −1.8% | +3.0% | +3.4% | +1.2% | +3.0% |
SWISX Risk
Risk measures from monthly returns over Aug 2023 – Jul 2026.
- 3-year volatility (annualised): 12.81%
- 3-year Sharpe ratio: 0.90 (vs 4.5% risk-free rate)
- Best month: +8.58% (Nov 2023)
- Worst month: −8.19% (Mar 2026)
SWISX Fund Flows
Monthly money in and out of Schwab International Index Fund, from SEC Form N-PORT.
- 12-month net flow: $1.0B
- 12-month gross sales (incl. reinvestments): $4.4B
- Sales ÷ redemptions: 1.30×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jul 2026 | $188.3M | $162.8M | $25.5M |
| Jun 2026 | $190.3M | $153.0M | $37.3M |
| May 2026 | $258.1M | $146.1M | $112.0M |
| Apr 2026 | $235.2M | $137.5M | $97.7M |
| Mar 2026 | $1.6B | $1.7B | −$53.9M |
| Feb 2026 | $272.0M | $163.3M | $108.6M |
| Jan 2026 | $278.3M | $178.7M | $99.6M |
| Dec 2025 | $539.1M | $144.3M | $394.7M |
| Nov 2025 | $172.2M | $112.2M | $60.1M |
| Oct 2025 | $200.9M | $110.8M | $90.0M |
| Sep 2025 | $243.4M | $262.5M | −$19.1M |
| Aug 2025 | $182.8M | $119.8M | $63.0M |
SWISX Assets Under Management
Net assets of Schwab International Index Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-07-31 | $14.81B |
| 2026-04-30 | $13.99B |
| 2026-01-31 | $13.59B |
| 2025-10-31 | $12.40B |
| 2025-07-31 | $11.32B |
| 2025-04-30 | $10.95B |
| 2025-01-31 | $10.05B |
| 2024-10-31 | $9.86B |
| 2024-07-31 | $9.81B |
| 2024-04-30 | $9.20B |
| 2024-01-31 | $8.77B |
| 2023-10-31 | $7.95B |
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.