SPXKX Performance — S&P 500 Index Fund, K Shares
Data updated: 2026-07-30
SPXKX returned +10.73% year to date and +28.53% over one year to May 2026. Annualised returns are +22.45% over 3 years and +13.11% over 5 years. The fund beat its US Large Blend category average: $100 invested three years ago grew to $184, against $165 for the category, and to $129 over one year, against $122. Volatility over the past three years was 13.21% a year. In the 12 months to May 2026 the fund took in a net $4.0M, and assets reached $346.16M.
SPXKX Growth of $100
What $100 invested in 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 | SPXKX | Category average |
|---|---|---|
| 1 year (Jun 2025 – May 2026) | $129 | $122 |
| 3 years (Jun 2023 – May 2026) | $184 | $165 |
| 5 years (Jun 2021 – May 2026) | $185 | $164 |
| Since data start (Sep 2019 – May 2026) | $270 | $229 |
SPXKX Trailing Returns
Total returns to May 2026, from SEC N-PORT.
| Period | Total return |
|---|---|
| YTD | +10.73% |
| 1 year | +28.53% |
| 3 years (annualised) | +22.45% |
| 5 years (annualised) | +13.11% |
SPXKX Annual Returns
Calendar-year total returns of S&P 500 Index Fund, compounded from monthly SEC N-PORT returns. Partial years show the months covered.
| Year | Total return |
|---|---|
| 2026 (Jan–May) | +10.73% |
| 2025 | +15.57% |
| 2024 | +24.25% |
| 2023 | +21.82% |
| 2022 | −9.37% |
| 2021 | +19.61% |
| 2020 | +30.27% |
| 2019 (Sep–Dec) | −1.24% |
SPXKX 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% | +10.3% | +5.1% | — | — | — | — | — | — | — |
| 2025 | +2.7% | −2.5% | +6.2% | −0.8% | −5.7% | +2.0% | +2.2% | +5.0% | +0.2% | +2.3% | +3.5% | 0.0% |
| 2024 | +1.6% | +4.4% | +4.9% | −4.2% | +3.2% | +2.3% | +1.1% | +3.5% | +5.8% | −1.0% | +2.0% | −1.4% |
| 2023 | +6.2% | −5.8% | +0.3% | +1.5% | +3.6% | −1.7% | +3.1% | +6.5% | +9.0% | −2.1% | −4.8% | +5.2% |
| 2022 | −5.2% | +4.5% | +0.1% | −8.8% | +3.6% | −4.2% | +9.1% | −8.3% | +5.6% | +8.1% | −9.3% | −2.5% |
| 2021 | −1.1% | +3.8% | +0.6% | +5.3% | +4.3% | +2.9% | +2.3% | +2.2% | −0.8% | +6.9% | −4.7% | −3.1% |
| 2020 | −0.2% | +2.9% | +4.7% | +12.7% | −12.5% | +7.1% | +5.5% | +1.9% | +10.9% | −2.6% | −3.9% | +2.6% |
| 2019 | — | — | — | — | — | — | — | — | +3.6% | +2.1% | +1.8% | −8.3% |
SPXKX Risk
Risk measures from monthly returns over Jun 2023 – May 2026.
- 3-year volatility (annualised): 13.21%
- 3-year Sharpe ratio: 1.36 (vs 4.5% risk-free rate)
- Best month: +10.34% (Apr 2026)
- Worst month: −5.70% (May 2025)
SPXKX Fund Flows
Monthly money in and out of S&P 500 Index Fund, from SEC Form N-PORT.
- 12-month net flow: $4.0M
- 12-month gross sales (incl. reinvestments): $25.2M
- Sales ÷ redemptions: 1.19×
| Month | Sales | Redemptions | Net flow |
|---|---|---|---|
| May 2026 | $1.1M | $2.3M | −$1.2M |
| Apr 2026 | $3.5M | $5.0M | −$1.5M |
| Mar 2026 | $3.5M | $3.3M | $218K |
| Feb 2026 | $1.8M | $3.4M | −$1.7M |
| Jan 2026 | $6.4M | $460K | $5.9M |
| Dec 2025 | $1.1M | $1.2M | −$143K |
| Nov 2025 | $0 | $0 | $0 |
| Oct 2025 | $0 | $0 | $0 |
| Sep 2025 | $6.5M | $2.2M | $4.4M |
| Aug 2025 | $0 | $0 | $0 |
| Jul 2025 | $0 | $0 | $0 |
| Jun 2025 | $1.3M | $3.3M | −$2.0M |
SPXKX Assets Under Management
Net assets of S&P 500 Index Fund by report date, from SEC N-PORT filings.
| Report date | Net assets |
|---|---|
| 2026-05-31 | $346.16M |
| 2026-02-28 | $317.04M |
| 2025-11-30 | $310.48M |
| 2025-08-31 | $300.31M |
| 2025-05-31 | $278.01M |
| 2025-02-28 | $254.50M |
| 2024-11-30 | $265.81M |
| 2024-08-31 | $280.58M |
| 2024-05-31 | $264.84M |
| 2024-02-29 | $254.50M |
| 2023-11-30 | $215.92M |
| 2023-08-31 | $230.45M |
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.