ELFNX vs. SUSIX

Last updated Aug 1, 2026

ELFNX (Elfun Trusts) and SUSIX (State Street Institutional U.S. Equity Fund) are both mutual funds - ELFNX is a Large Cap Growth Equities fund managed by State Street, while SUSIX is a Large Cap Blend Equities fund managed by State Street. Over the past 10 years, ELFNX returned 15.91%/yr vs 15.19%/yr for SUSIX. Their 0.98 correlation means they have historically moved very closely together. ELFNX charges 0.18%/yr vs 0.37%/yr for SUSIX.

Performance

ELFNX vs. SUSIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Elfun Trusts (ELFNX) and State Street Institutional U.S. Equity Fund (SUSIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ELFNX achieves a 5.44% return, which is significantly lower than SUSIX's 6.48% return. Both investments have delivered pretty close results over the past 10 years, with ELFNX having a 15.91% annualized return and SUSIX not far behind at 15.19%.

ELFNX

• 1D: 2.33%
• 1M: -0.01%
• 6M: 4.39%
• YTD: 5.44%
• 1Y: 14.45%
• 3Y*: 18.91%
• 5Y*: 12.07%
• 10Y*: 15.91%
• ALL TIME*: 11.00%

SUSIX

• 1D: 2.02%
• 1M: -0.28%
• 6M: 5.21%
• YTD: 6.48%
• 1Y: 16.44%
• 3Y*: 18.32%
• 5Y*: 11.93%
• 10Y*: 15.19%
• ALL TIME*: 9.66%

*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)
ELFNX Elfun Trusts	$0.00	$0.00	$0.00
SUSIX State Street Institutional U.S. Equity Fund	$0.00	$0.00	$0.00

ELFNX vs. SUSIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ELFNX Elfun Trusts	5.44%	16.64%	26.91%	34.50%	-19.91%	24.46%	25.18%	35.57%	-3.25%	25.60%
SUSIX State Street Institutional U.S. Equity Fund	6.48%	17.16%	25.02%	28.63%	-18.03%	26.46%	23.02%	32.36%	-3.41%	20.75%

Correlation

The correlation between ELFNX and SUSIX is 0.98 - they have historically moved very closely together. At this level, their price movements offset little of one another.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.98
Correlation (3Y) Balances recent behavior with more history.	0.98
Correlation (5Y) Shows whether the relationship held over a longer period.	0.99
Correlation (10Y) Provides a long-term view across more market conditions.	0.99
Correlation (All Time) Calculated using the full available price history since Jan 2, 1998	0.98

The correlation between ELFNX and SUSIX has been stable across timeframes, ranging from 0.98 to 0.99 - a consistent structural relationship.

Return for Risk

ELFNX vs. SUSIX — Risk / Return Rank

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

ELFNX

ELFNX Risk / Return Rank: 27
ELFNX Sharpe Ratio Rank: 28
ELFNX Sortino Ratio Rank: 27
ELFNX Omega Ratio Rank: 27
ELFNX Calmar Ratio Rank: 24
ELFNX Martin Ratio Rank: 30

SUSIX

SUSIX Risk / Return Rank: 32
SUSIX Sharpe Ratio Rank: 33
SUSIX Sortino Ratio Rank: 32
SUSIX Omega Ratio Rank: 31
SUSIX Calmar Ratio Rank: 28
SUSIX Martin Ratio Rank: 36

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.

ELFNX vs. SUSIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Elfun Trusts (ELFNX) and State Street Institutional U.S. Equity Fund (SUSIX). 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.

	ELFNX	SUSIX	Difference
Sharpe ratio: Return per unit of total volatility	0.92	1.10	-0.18
Sortino ratio: Return per unit of downside risk	1.34	1.58	-0.24
Omega ratio: Gain probability vs. loss probability	1.17	1.20	-0.03
Calmar ratio: Return relative to maximum drawdown	1.10	1.34	-0.24
Martin ratio: Return relative to average drawdown	4.21	5.50	-1.28

ELFNX vs. SUSIX - Sharpe Ratio Comparison

The current ELFNX Sharpe Ratio is 0.92, which is comparable to the SUSIX Sharpe Ratio of 1.10. The chart below compares the historical Sharpe Ratios of ELFNX and SUSIX, 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

ELFNX vs. SUSIX - Drawdown Comparison

The maximum ELFNX drawdown since its inception was -50.28%, roughly equal to the maximum SUSIX drawdown of -51.69%. Use the drawdown chart below to compare losses from any high point for ELFNX and SUSIX.

Drawdown Indicators

	ELFNX	SUSIX	Difference
Max Drawdown Largest peak-to-trough decline	-50.28%	-51.69%	+1.41%
Max Drawdown (1Y) Largest decline over 1 year	-11.40%	-10.69%	-0.71%
Max Drawdown (3Y) Largest decline over 3 years	-19.58%	-18.71%	-0.87%
Max Drawdown (5Y) Largest decline over 5 years	-26.39%	-24.45%	-1.94%
Max Drawdown (10Y) Largest decline over 10 years	-32.44%	-32.62%	+0.18%
Current Drawdown Current decline from peak	-2.18%	-1.87%	-0.31%
Average Drawdown Average peak-to-trough decline	-7.61%	-7.75%	+0.14%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.97%	2.60%	+0.37%

Volatility

ELFNX vs. SUSIX - Volatility Comparison

Elfun Trusts (ELFNX) has a higher volatility of 4.06% compared to State Street Institutional U.S. Equity Fund (SUSIX) at 3.74%. This indicates that ELFNX's price experiences larger fluctuations and is considered to be riskier than SUSIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ELFNX	SUSIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.06%	3.74%	+0.32%
Volatility (6M) Calculated over the trailing 6-month period	10.65%	10.31%	+0.34%
Volatility (1Y) Calculated over the trailing 1-year period	13.58%	13.03%	+0.55%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.01%	17.40%	+0.61%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.38%	18.02%	+0.36%

ELFNX vs. SUSIX - Expense Ratio Comparison

ELFNX has a 0.18% expense ratio, which is lower than SUSIX's 0.37% expense ratio.

Dividends

ELFNX vs. SUSIX - Dividend Comparison

ELFNX's dividend yield for the trailing twelve months is around 9.36%, more than SUSIX's 7.12% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ELFNX Elfun Trusts	9.36%	9.87%	10.43%	2.90%	9.01%	11.62%	8.60%	9.39%	16.18%	10.80%	8.85%	8.22%
SUSIX State Street Institutional U.S. Equity Fund	7.12%	7.58%	15.35%	1.66%	57.55%	13.56%	4.65%	6.40%	16.03%	26.98%	6.88%	21.28%

Frequently Asked Questions

Can I hold both ELFNX and SUSIX in my portfolio?

With a correlation of 0.98, ELFNX and SUSIX 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, ELFNX or SUSIX?

ELFNX has higher volatility (4.06%) compared to SUSIX (3.74%). In terms of maximum drawdown, ELFNX dropped -50.28% vs SUSIX's -51.69%.

Which has better risk-adjusted returns?

SUSIX currently has the higher Sharpe Ratio (1.10 vs 0.92), 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.