SAMKX vs. SAUFX

Last updated Jun 23, 2026

SAMKX (SA U.S. Core Market Fund) and SAUFX (SA U.S. Fixed Income Fund) are both mutual funds - SAMKX is a Large Cap Blend Equities fund managed by SA Funds, while SAUFX is a Ultrashort Bond fund managed by SA Funds. Over the past 10 years, SAMKX returned 14.63%/yr vs 1.25%/yr for SAUFX. At a 0.03 correlation, their price movements are largely independent. SAMKX charges 0.67%/yr vs 0.40%/yr for SAUFX.

Performance

SAMKX vs. SAUFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SA U.S. Core Market Fund (SAMKX) and SA U.S. Fixed Income Fund (SAUFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SAMKX achieves a 9.47% return, which is significantly higher than SAUFX's 1.06% return. Over the past 10 years, SAMKX has outperformed SAUFX with an annualized return of 14.63%, while SAUFX has yielded a comparatively lower 1.25% annualized return.

SAMKX

• 1D: 1.02%
• 1M: 0.49%
• YTD: 9.47%
• 6M: 8.92%
• 1Y: 24.94%
• 3Y*: 19.37%
• 5Y*: 12.63%
• 10Y*: 14.63%

SAUFX

• 1D: 0.00%
• 1M: 0.26%
• YTD: 1.06%
• 6M: 1.17%
• 1Y: 4.16%
• 3Y*: 4.39%
• 5Y*: 1.74%
• 10Y*: 1.25%

*Multi-year figures are annualized to reflect compound growth (CAGR)

SAMKX vs. SAUFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SAMKX SA U.S. Core Market Fund	9.47%	15.80%	22.80%	25.81%	-18.91%	25.66%	18.88%	30.56%	-4.69%	22.20%
SAUFX SA U.S. Fixed Income Fund	1.06%	4.85%	5.23%	4.04%	-5.11%	-1.38%	0.61%	2.27%	1.28%	0.24%

Correlation

The correlation between SAMKX and SAUFX is 0.39, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.39
Correlation (3Y) Calculated over the trailing 3-year period	0.22
Correlation (5Y) Calculated over the trailing 5-year period	0.14
Correlation (10Y) Calculated over the trailing 10-year period	0.07
Correlation (All Time) Calculated using the full available price history since Aug 3, 2012	0.03

Over the past year, SAMKX and SAUFX have become more correlated (0.39) than their long-term average of 0.03, meaning their price movements have been converging.

Return for Risk

SAMKX vs. SAUFX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

SAMKX

SAMKX Risk / Return Rank: 73
SAMKX Sharpe Ratio Rank: 73
SAMKX Sortino Ratio Rank: 71
SAMKX Omega Ratio Rank: 66
SAMKX Calmar Ratio Rank: 73
SAMKX Martin Ratio Rank: 81

SAUFX

SAUFX Risk / Return Rank: 93
SAUFX Sharpe Ratio Rank: 90
SAUFX Sortino Ratio Rank: 94
SAUFX Omega Ratio Rank: 91
SAUFX Calmar Ratio Rank: 95
SAUFX Martin Ratio Rank: 96

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

SAMKX vs. SAUFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SA U.S. Core Market Fund (SAMKX) and SA U.S. Fixed Income Fund (SAUFX). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	SAMKX	SAUFX	Difference
Sharpe ratio: Return per unit of total volatility	2.29	2.75	-0.46
Sortino ratio: Return per unit of downside risk	3.18	4.52	-1.34
Omega ratio: Gain probability vs. loss probability	1.41	1.64	-0.23
Calmar ratio: Return relative to maximum drawdown	3.16	5.41	-2.25
Martin ratio: Return relative to average drawdown	13.98	20.99	-7.01

SAMKX vs. SAUFX - Sharpe Ratio Comparison

The current SAMKX Sharpe Ratio is 2.29, which is comparable to the SAUFX Sharpe Ratio of 2.75. The chart below compares the historical Sharpe Ratios of SAMKX and SAUFX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

SAMKX vs. SAUFX - Drawdown Comparison

The maximum SAMKX drawdown since its inception was -33.77%, which is greater than SAUFX's maximum drawdown of -7.43%. Use the drawdown chart below to compare losses from any high point for SAMKX and SAUFX.

Drawdown Indicators

	SAMKX	SAUFX	Difference
Max Drawdown Largest peak-to-trough decline	-33.77%	-7.43%	-26.34%
Max Drawdown (1Y) Largest decline over 1 year	-8.75%	-0.84%	-7.91%
Max Drawdown (3Y) Largest decline over 3 years	-19.29%	-1.86%	-17.43%
Max Drawdown (5Y) Largest decline over 5 years	-24.88%	-7.34%	-17.54%
Max Drawdown (10Y) Largest decline over 10 years	-33.77%	-7.43%	-26.34%
Current Drawdown Current decline from peak	-1.11%	-0.10%	-1.01%
Average Drawdown Average peak-to-trough decline	-3.92%	-0.74%	-3.18%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.91%	0.21%	+1.70%

Volatility

SAMKX vs. SAUFX - Volatility Comparison

SA U.S. Core Market Fund (SAMKX) has a higher volatility of 4.44% compared to SA U.S. Fixed Income Fund (SAUFX) at 0.52%. This indicates that SAMKX's price experiences larger fluctuations and is considered to be riskier than SAUFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SAMKX	SAUFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.44%	0.52%	+3.92%
Volatility (6M) Calculated over the trailing 6-month period	9.41%	1.14%	+8.27%
Volatility (1Y) Calculated over the trailing 1-year period	12.09%	1.66%	+10.43%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.93%	2.09%	+14.84%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.57%	1.53%	+16.04%

SAMKX vs. SAUFX - Expense Ratio Comparison

SAMKX has a 0.67% expense ratio, which is higher than SAUFX's 0.40% expense ratio.

Dividends

SAMKX vs. SAUFX - Dividend Comparison

SAMKX's dividend yield for the trailing twelve months is around 0.60%, less than SAUFX's 4.23% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SAMKX SA U.S. Core Market Fund	0.60%	0.66%	0.69%	0.86%	5.83%	7.72%	8.08%	12.72%	6.46%	4.09%	6.20%	0.89%
SAUFX SA U.S. Fixed Income Fund	4.23%	3.38%	4.91%	2.58%	1.26%	0.00%	0.41%	1.86%	1.47%	0.74%	0.43%	0.26%

Frequently Asked Questions

Can I hold both SAMKX and SAUFX in my portfolio?

SAMKX and SAUFX have a correlation of 0.39, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SAMKX or SAUFX?

SAMKX has higher volatility (4.44%) compared to SAUFX (0.52%). In terms of maximum drawdown, SAMKX dropped -33.77% vs SAUFX's -7.43%.

Which has better risk-adjusted returns?

SAUFX currently has the higher Sharpe Ratio (2.75 vs 2.29), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.