SAMKX vs. SSSYX
Compare and contrast key facts about SA U.S. Core Market Fund (SAMKX) and State Street Equity 500 Index Fund Class K (SSSYX).
SAMKX is managed by SA Funds. It was launched on Aug 5, 1999. SSSYX is a passively managed fund by State Street that tracks the performance of the S&P 500 Index. It was launched on Sep 17, 2014.
Performance
SAMKX vs. SSSYX - Performance Comparison
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SAMKX vs. SSSYX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
SAMKX SA U.S. Core Market Fund | -6.27% | 15.80% | 22.80% | 25.81% | -18.91% | 25.66% | 18.88% | 30.56% | -4.69% | 22.20% |
SSSYX State Street Equity 500 Index Fund Class K | -7.05% | 17.81% | 24.99% | 26.27% | -18.16% | 28.51% | 18.31% | 31.38% | -4.38% | 21.61% |
Returns By Period
In the year-to-date period, SAMKX achieves a -6.27% return, which is significantly higher than SSSYX's -7.05% return. Over the past 10 years, SAMKX has underperformed SSSYX with an annualized return of 12.91%, while SSSYX has yielded a comparatively higher 13.69% annualized return.
SAMKX
- 1D
- -0.31%
- 1M
- -7.74%
- YTD
- -6.27%
- 6M
- -3.88%
- 1Y
- 13.55%
- 3Y*
- 16.02%
- 5Y*
- 10.17%
- 10Y*
- 12.91%
SSSYX
- 1D
- -0.39%
- 1M
- -7.67%
- YTD
- -7.05%
- 6M
- -4.60%
- 1Y
- 14.40%
- 3Y*
- 17.15%
- 5Y*
- 11.37%
- 10Y*
- 13.69%
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SAMKX vs. SSSYX - Expense Ratio Comparison
SAMKX has a 0.67% expense ratio, which is higher than SSSYX's 0.02% expense ratio.
Return for Risk
SAMKX vs. SSSYX — Risk / Return Rank
SAMKX
SSSYX
SAMKX vs. SSSYX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for SA U.S. Core Market Fund (SAMKX) and State Street Equity 500 Index Fund Class K (SSSYX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
| SAMKX | SSSYX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.81 | 0.84 | -0.03 |
Sortino ratioReturn per unit of downside risk | 1.25 | 1.30 | -0.05 |
Omega ratioGain probability vs. loss probability | 1.18 | 1.20 | -0.02 |
Calmar ratioReturn relative to maximum drawdown | 0.21 | 1.06 | -0.85 |
Martin ratioReturn relative to average drawdown | 0.76 | 5.13 | -4.37 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| SAMKX | SSSYX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.81 | 0.84 | -0.03 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.62 | 0.68 | -0.06 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.75 | 0.11 | +0.64 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.80 | 0.11 | +0.69 |
Correlation
The correlation between SAMKX and SSSYX is 0.96, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
SAMKX vs. SSSYX - Dividend Comparison
SAMKX's dividend yield for the trailing twelve months is around 0.71%, less than SSSYX's 1.55% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
SAMKX SA U.S. Core Market Fund | 0.71% | 0.66% | 0.69% | 0.86% | 5.83% | 7.72% | 8.08% | 12.72% | 6.46% | 4.09% | 6.20% | 0.89% |
SSSYX State Street Equity 500 Index Fund Class K | 1.55% | 1.44% | 1.63% | 1.78% | 2.16% | 2.76% | 1.86% | 4.44% | 5.18% | 5.94% | 2.07% | 1.84% |
Drawdowns
SAMKX vs. SSSYX - Drawdown Comparison
The maximum SAMKX drawdown since its inception was -33.77%, smaller than the maximum SSSYX drawdown of -91.48%. Use the drawdown chart below to compare losses from any high point for SAMKX and SSSYX.
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Drawdown Indicators
| SAMKX | SSSYX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -33.77% | -91.48% | +57.71% |
Max Drawdown (1Y)Largest decline over 1 year | -11.97% | -12.10% | +0.13% |
Max Drawdown (5Y)Largest decline over 5 years | -24.88% | -24.49% | -0.39% |
Max Drawdown (10Y)Largest decline over 10 years | -33.77% | -91.48% | +57.71% |
Current DrawdownCurrent decline from peak | -8.75% | -8.88% | +0.13% |
Average DrawdownAverage peak-to-trough decline | -3.96% | -4.20% | +0.24% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.08% | 2.49% | +2.59% |
Volatility
SAMKX vs. SSSYX - Volatility Comparison
SA U.S. Core Market Fund (SAMKX) and State Street Equity 500 Index Fund Class K (SSSYX) have volatilities of 4.16% and 4.24%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| SAMKX | SSSYX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.16% | 4.24% | -0.08% |
Volatility (6M)Calculated over the trailing 6-month period | 8.65% | 9.08% | -0.43% |
Volatility (1Y)Calculated over the trailing 1-year period | 17.36% | 18.10% | -0.74% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.84% | 16.85% | -0.01% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 17.51% | 124.43% | -106.92% |