DUSQX vs. SSSYX

Last updated Jun 26, 2026

DUSQX (DFA U.S. Large Cap Equity Portfolio) and SSSYX (State Street Equity 500 Index Fund Class K) are both mutual funds - DUSQX is a Large Cap Blend Equities fund managed by Dimensional, while SSSYX is a S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, DUSQX returned 15.06%/yr vs 45.47%/yr for SSSYX. With a 0.98 correlation, they move nearly in lockstep. DUSQX charges 0.13%/yr vs 0.02%/yr for SSSYX.

Performance

DUSQX vs. SSSYX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in DFA U.S. Large Cap Equity Portfolio (DUSQX) and State Street Equity 500 Index Fund Class K (SSSYX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, DUSQX achieves a 8.53% return, which is significantly higher than SSSYX's 8.10% return. Over the past 10 years, DUSQX has underperformed SSSYX with an annualized return of 15.06%, while SSSYX has yielded a comparatively higher 45.47% annualized return.

DUSQX

• 1D: -0.05%
• 1M: -1.49%
• YTD: 8.53%
• 6M: 7.26%
• 1Y: 22.31%
• 3Y*: 20.47%
• 5Y*: 11.99%
• 10Y*: 15.06%

SSSYX

• 1D: -0.10%
• 1M: -2.03%
• YTD: 8.10%
• 6M: 6.77%
• 1Y: 22.19%
• 3Y*: 20.74%
• 5Y*: 13.01%
• 10Y*: 45.47%

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

DUSQX vs. SSSYX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
DUSQX DFA U.S. Large Cap Equity Portfolio	8.53%	16.76%	24.25%	24.23%	-16.85%	24.31%	18.89%	31.52%	-6.22%	22.09%
SSSYX State Street Equity 500 Index Fund Class K	8.10%	17.81%	24.99%	26.27%	-18.16%	28.51%	1,083.11%	31.38%	-4.38%	21.61%

Correlation

The correlation between DUSQX and SSSYX is 0.97 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.97
Correlation (3Y) Calculated over the trailing 3-year period	0.98
Correlation (5Y) Calculated over the trailing 5-year period	0.99
Correlation (10Y) Calculated over the trailing 10-year period	0.98
Correlation (All Time) Calculated using the full available price history since Sep 18, 2014	0.98

The correlation between DUSQX and SSSYX has been stable across timeframes, ranging from 0.97 to 0.99 - a consistent structural relationship.

Return for Risk

DUSQX vs. SSSYX — Risk / Return Rank

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

DUSQX

DUSQX Risk / Return Rank: 66
DUSQX Sharpe Ratio Rank: 63
DUSQX Sortino Ratio Rank: 60
DUSQX Omega Ratio Rank: 59
DUSQX Calmar Ratio Rank: 67
DUSQX Martin Ratio Rank: 78

SSSYX

SSSYX Risk / Return Rank: 55
SSSYX Sharpe Ratio Rank: 52
SSSYX Sortino Ratio Rank: 48
SSSYX Omega Ratio Rank: 50
SSSYX Calmar Ratio Rank: 56
SSSYX Martin Ratio Rank: 69

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.

DUSQX vs. SSSYX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for DFA U.S. Large Cap Equity Portfolio (DUSQX) 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.

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.

	DUSQX	SSSYX	Difference
Sharpe ratio: Return per unit of total volatility	1.92	1.78	+0.13
Sortino ratio: Return per unit of downside risk	2.66	2.44	+0.22
Omega ratio: Gain probability vs. loss probability	1.35	1.32	+0.02
Calmar ratio: Return relative to maximum drawdown	2.71	2.51	+0.20
Martin ratio: Return relative to average drawdown	12.21	11.21	+1.00

DUSQX vs. SSSYX - Sharpe Ratio Comparison

The current DUSQX Sharpe Ratio is 1.92, which is comparable to the SSSYX Sharpe Ratio of 1.78. The chart below compares the historical Sharpe Ratios of DUSQX and SSSYX, 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

DUSQX vs. SSSYX - Drawdown Comparison

The maximum DUSQX drawdown since its inception was -34.83%, roughly equal to the maximum SSSYX drawdown of -33.77%. Use the drawdown chart below to compare losses from any high point for DUSQX and SSSYX.

Drawdown Indicators

	DUSQX	SSSYX	Difference
Max Drawdown Largest peak-to-trough decline	-34.83%	-33.77%	-1.06%
Max Drawdown (1Y) Largest decline over 1 year	-8.32%	-8.88%	+0.56%
Max Drawdown (3Y) Largest decline over 3 years	-19.00%	-18.74%	-0.26%
Max Drawdown (5Y) Largest decline over 5 years	-24.05%	-24.49%	+0.44%
Max Drawdown (10Y) Largest decline over 10 years	-34.83%	-33.77%	-1.06%
Current Drawdown Current decline from peak	-2.79%	-3.22%	+0.43%
Average Drawdown Average peak-to-trough decline	-4.12%	-3.91%	-0.21%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.83%	1.98%	-0.15%

Volatility

DUSQX vs. SSSYX - Volatility Comparison

The current volatility for DFA U.S. Large Cap Equity Portfolio (DUSQX) is 4.60%, while State Street Equity 500 Index Fund Class K (SSSYX) has a volatility of 4.87%. This indicates that DUSQX experiences smaller price fluctuations and is considered to be less risky than SSSYX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	DUSQX	SSSYX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.60%	4.87%	-0.27%
Volatility (6M) Calculated over the trailing 6-month period	9.49%	9.89%	-0.40%
Volatility (1Y) Calculated over the trailing 1-year period	11.79%	12.53%	-0.74%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.76%	16.99%	-0.23%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.68%	121.16%	-103.48%

DUSQX vs. SSSYX - Expense Ratio Comparison

DUSQX has a 0.13% expense ratio, which is higher than SSSYX's 0.02% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

DUSQX vs. SSSYX - Dividend Comparison

DUSQX's dividend yield for the trailing twelve months is around 0.94%, less than SSSYX's 1.33% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DUSQX DFA U.S. Large Cap Equity Portfolio	0.94%	0.98%	1.11%	4.95%	4.84%	2.45%	1.42%	1.65%	1.79%	1.62%	1.80%	1.75%
SSSYX State Street Equity 500 Index Fund Class K	1.33%	1.44%	1.63%	1.78%	2.16%	2.76%	1.86%	4.44%	5.18%	5.94%	2.07%	1.84%

Frequently Asked Questions

Can I hold both DUSQX and SSSYX in my portfolio?

With a correlation of 0.97, DUSQX and SSSYX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, DUSQX or SSSYX?

SSSYX has higher volatility (4.87%) compared to DUSQX (4.60%). In terms of maximum drawdown, DUSQX dropped -34.83% vs SSSYX's -33.77%.

Which has better risk-adjusted returns?

DUSQX currently has the higher Sharpe Ratio (1.92 vs 1.78), 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.