C000117728 Performance — iShares S&P 500 Index Fund, Service Class
Data updated: 2026-08-25
C000117728 returned +10.07% year to date and +22.02% over one year to Jun 2026. Annualised returns are +20.32% over 3 years and +13.14% over 5 years. The fund beat its US Large Blend category average: $100 invested three years ago grew to $174, against $157 for the category, and to $122 over one year, against $118. Volatility over the past three years was 13.05% a year. In the 12 months to Jun 2026 the fund lost a net $170.2M, and assets reached $59.06B.
C000117728 Growth of $100
What $100 invested in iShares S&P 500 Index Fund grew to, compounded from monthly returns reported on SEC Form N-PORT, against the US Large Blend category average over the same months.
| Period | C000117728 | Category average |
|---|---|---|
| 1 year (Jul 2025 – Jun 2026) | $122 | $118 |
| 3 years (Jul 2023 – Jun 2026) | $174 | $157 |
| 5 years (Jul 2021 – Jun 2026) | $185 | $161 |
| Since data start (Jul 2019 – Jun 2026) | $280 | $229 |
C000117728 Trailing Returns
Total returns to Jun 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +10.07% |
| 1 year | +22.02% |
| 3 years (annualised) | +20.32% |
| 5 years (annualised) | +13.14% |
C000117728 Annual Returns
Calendar-year total returns of iShares S&P 500 Index Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–Jun) | +10.07% |
| 2025 | +17.62% |
| 2024 | +24.72% |
| 2023 | +25.97% |
| 2022 | −18.29% |
| 2021 | +28.39% |
| 2020 | +18.22% |
| 2019 (Jul–Dec) | +10.80% |
C000117728 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 | +1.4% | −0.8% | −5.0% | +10.5% | +5.2% | −1.0% | — | — | — | — | — | — |
| 2025 | +2.8% | −1.3% | −5.6% | −0.7% | +6.3% | +5.1% | +2.2% | +2.0% | +3.6% | +2.3% | +0.2% | 0.0% |
| 2024 | +1.7% | +5.3% | +3.2% | −4.1% | +4.9% | +3.6% | +1.2% | +2.4% | +2.1% | −0.9% | +5.9% | −2.4% |
| 2023 | +6.3% | −2.5% | +3.6% | +1.5% | +0.4% | +6.6% | +3.2% | −1.6% | −4.8% | −2.1% | +9.1% | +4.5% |
| 2022 | −5.2% | −3.0% | +3.7% | −8.7% | +0.2% | −8.3% | +9.2% | −4.1% | −9.2% | +8.1% | +5.6% | −5.8% |
| 2021 | −1.0% | +2.7% | +4.4% | +5.3% | +0.7% | +2.3% | +2.4% | +3.0% | −4.7% | +7.0% | −0.7% | +4.5% |
| 2020 | −0.1% | −8.2% | −12.3% | +12.8% | +4.8% | +1.9% | +5.6% | +7.2% | −3.8% | −2.7% | +10.9% | +3.8% |
| 2019 | — | — | — | — | — | — | +1.4% | −1.6% | +1.9% | +2.1% | +3.6% | +3.0% |
C000117728 Risk
Risk measures from monthly returns over Jul 2023 – Jun 2026.
- 3-year volatility (annualised): 13.05%
- 3-year Sharpe ratio: 1.21 (vs 4.5% risk-free rate)
- Best month: +10.47% (Apr 2026)
- Worst month: −5.64% (Mar 2025)
C000117728 Fund Flows
Monthly money in and out of iShares S&P 500 Index Fund, from SEC Form N-PORT.
- 12-month net flow: −$170.2M
- 12-month gross sales (incl. reinvestments): $11.9B
- Sales ÷ redemptions: 0.99×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| Jun 2026 | $739.6M | $820.5M | −$80.8M |
| May 2026 | $778.3M | $1.0B | −$268.7M |
| Apr 2026 | $1.3B | $841.0M | $493.9M |
| Mar 2026 | $1.3B | $891.2M | $400.0M |
| Feb 2026 | $880.9M | $769.5M | $111.4M |
| Jan 2026 | $818.5M | $1.2B | −$342.6M |
| Dec 2025 | $1.2B | $1.2B | $50.3M |
| Nov 2025 | $601.5M | $853.8M | −$252.3M |
| Oct 2025 | $2.0B | $960.9M | $1.0B |
| Sep 2025 | $664.5M | $1.1B | −$391.3M |
| Aug 2025 | $610.8M | $945.0M | −$334.2M |
| Jul 2025 | $991.0M | $1.6B | −$562.4M |
C000117728 Assets Under Management
Net assets of iShares S&P 500 Index Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-06-30 | $59.06B |
| 2026-03-31 | $51.30B |
| 2025-12-31 | $53.61B |
| 2025-09-30 | $51.88B |
| 2025-06-30 | $49.38B |
| 2025-03-31 | $44.48B |
| 2024-12-31 | $45.95B |
| 2024-09-30 | $44.46B |
| 2024-06-30 | $41.58B |
| 2024-03-31 | $39.98B |
| 2023-12-31 | $35.55B |
| 2023-09-30 | $31.67B |
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.