SRFMX vs. SSSYX

Last updated Aug 1, 2026

SRFMX (Sarofim Equity Fund) and SSSYX (State Street Equity 500 Index Fund Class K) are both mutual funds - SRFMX is a Large Cap Blend Equities fund managed by Sarofim, while SSSYX is a S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, SRFMX returned 12.53%/yr vs 44.70%/yr for SSSYX. Their correlation of 0.94 means they have usually moved in the same direction. SRFMX charges 0.70%/yr vs 0.02%/yr for SSSYX.

Performance

SRFMX vs. SSSYX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Sarofim Equity Fund (SRFMX) 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, SRFMX achieves a 2.72% return, which is significantly lower than SSSYX's 9.34% return. Over the past 10 years, SRFMX has underperformed SSSYX with an annualized return of 12.53%, while SSSYX has yielded a comparatively higher 44.70% annualized return.

SRFMX

• 1D: 1.76%
• 1M: 0.58%
• 6M: 2.46%
• YTD: 2.72%
• 1Y: 9.88%
• 3Y*: 10.58%
• 5Y*: 6.48%
• 10Y*: 12.53%
• ALL TIME*: 10.18%

SSSYX

• 1D: 1.66%
• 1M: -0.55%
• 6M: 7.79%
• YTD: 9.34%
• 1Y: 20.60%
• 3Y*: 19.01%
• 5Y*: 12.65%
• 10Y*: 44.70%
• ALL TIME*: 37.64%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
SRFMX Sarofim Equity Fund	$0.00	$0.00	$0.00
SSSYX State Street Equity 500 Index Fund Class K	$0.00	$0.00	$0.00

SRFMX vs. SSSYX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SRFMX Sarofim Equity Fund	2.72%	11.35%	13.67%	21.41%	-19.20%	27.72%	24.38%	35.64%	-6.98%	25.90%
SSSYX State Street Equity 500 Index Fund Class K	9.34%	17.81%	24.99%	26.27%	-18.16%	28.51%	1,083.11%	31.38%	-4.38%	21.61%

Correlation

The correlation between SRFMX and SSSYX is 0.91, meaning they have usually moved in the same direction, including during past declines.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.91
Correlation (3Y) Balances recent behavior with more history.	0.91
Correlation (5Y) Shows whether the relationship held over a longer period.	0.94
Correlation (10Y) Provides a long-term view across more market conditions.	0.94
Correlation (All Time) Calculated using the full available price history since Jan 2, 2015	0.94

The correlation between SRFMX and SSSYX has been stable across timeframes, ranging from 0.91 to 0.94 - a consistent structural relationship.

Return for Risk

SRFMX vs. SSSYX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

SRFMX

SRFMX Risk / Return Rank: 14
SRFMX Sharpe Ratio Rank: 14
SRFMX Sortino Ratio Rank: 13
SRFMX Omega Ratio Rank: 14
SRFMX Calmar Ratio Rank: 12
SRFMX Martin Ratio Rank: 16

SSSYX

SSSYX Risk / Return Rank: 63
SSSYX Sharpe Ratio Rank: 60
SSSYX Sortino Ratio Rank: 57
SSSYX Omega Ratio Rank: 58
SSSYX Calmar Ratio Rank: 64
SSSYX Martin Ratio Rank: 76

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

SRFMX vs. SSSYX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Sarofim Equity Fund (SRFMX) 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.

	SRFMX	SSSYX	Difference
Sharpe ratio: Return per unit of total volatility	0.60	1.43	-0.82
Sortino ratio: Return per unit of downside risk	0.90	1.99	-1.09
Omega ratio: Gain probability vs. loss probability	1.11	1.26	-0.14
Calmar ratio: Return relative to maximum drawdown	0.65	2.06	-1.41
Martin ratio: Return relative to average drawdown	2.34	8.86	-6.51

SRFMX vs. SSSYX - Sharpe Ratio Comparison

The current SRFMX Sharpe Ratio is 0.60, which is lower than the SSSYX Sharpe Ratio of 1.43. The chart below compares the historical Sharpe Ratios of SRFMX 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

SRFMX vs. SSSYX - Drawdown Comparison

The maximum SRFMX drawdown since its inception was -32.46%, roughly equal to the maximum SSSYX drawdown of -33.77%. Use the drawdown chart below to compare losses from any high point for SRFMX and SSSYX.

Drawdown Indicators

	SRFMX	SSSYX	Difference
Max Drawdown Largest peak-to-trough decline	-32.46%	-33.77%	+1.31%
Max Drawdown (1Y) Largest decline over 1 year	-12.05%	-8.88%	-3.17%
Max Drawdown (3Y) Largest decline over 3 years	-16.95%	-18.74%	+1.79%
Max Drawdown (5Y) Largest decline over 5 years	-27.63%	-24.49%	-3.14%
Max Drawdown (10Y) Largest decline over 10 years	-32.46%	-33.77%	+1.31%
Current Drawdown Current decline from peak	-1.96%	-2.11%	+0.15%
Average Drawdown Average peak-to-trough decline	-5.84%	-3.89%	-1.95%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.34%	2.07%	+1.27%

Volatility

SRFMX vs. SSSYX - Volatility Comparison

Sarofim Equity Fund (SRFMX) has a higher volatility of 3.83% compared to State Street Equity 500 Index Fund Class K (SSSYX) at 3.45%. This indicates that SRFMX's price experiences larger fluctuations and is considered to be riskier than SSSYX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SRFMX	SSSYX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.83%	3.45%	+0.38%
Volatility (6M) Calculated over the trailing 6-month period	10.48%	10.09%	+0.39%
Volatility (1Y) Calculated over the trailing 1-year period	13.04%	12.85%	+0.19%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.09%	17.00%	+1.09%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.62%	121.13%	-102.51%

SRFMX vs. SSSYX - Expense Ratio Comparison

SRFMX has a 0.70% expense ratio, which is higher than SSSYX's 0.02% expense ratio.

Dividends

SRFMX vs. SSSYX - Dividend Comparison

SRFMX's dividend yield for the trailing twelve months is around 31.16%, more than SSSYX's 1.32% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SRFMX Sarofim Equity Fund	31.16%	31.88%	18.62%	11.14%	8.76%	8.36%	7.36%	5.03%	7.42%	5.41%	1.68%	0.00%
SSSYX State Street Equity 500 Index Fund Class K	1.32%	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 SRFMX and SSSYX in my portfolio?

With a correlation of 0.91, SRFMX 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, SRFMX or SSSYX?

SRFMX has higher volatility (3.83%) compared to SSSYX (3.45%). In terms of maximum drawdown, SRFMX dropped -32.46% vs SSSYX's -33.77%.

Which has better risk-adjusted returns?

SSSYX currently has the higher Sharpe Ratio (1.43 vs 0.60), 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.