SSKEX vs. EINFX

Last updated Aug 1, 2026

SSKEX (State Street Emerging Markets Equity Index Fund) and EINFX (Elfun Income Fund) are both mutual funds - SSKEX is a Emerging Markets Equities fund managed by State Street, while EINFX is a Intermediate Core-Plus Bond fund managed by State Street. Over the past 10 years, SSKEX returned 8.59%/yr vs 1.07%/yr for EINFX. Their 0.02 correlation means their historical movements had little consistent relationship. SSKEX charges 0.17%/yr vs 0.29%/yr for EINFX.

Performance

SSKEX vs. EINFX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street Emerging Markets Equity Index Fund (SSKEX) and Elfun Income Fund (EINFX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SSKEX achieves a 17.04% return, which is significantly higher than EINFX's -1.00% return. Over the past 10 years, SSKEX has outperformed EINFX with an annualized return of 8.59%, while EINFX has yielded a comparatively lower 1.07% annualized return.

SSKEX

• 1D: 3.80%
• 1M: -4.28%
• 6M: 7.52%
• YTD: 17.04%
• 1Y: 35.41%
• 3Y*: 18.10%
• 5Y*: 7.28%
• 10Y*: 8.59%
• ALL TIME*: 9.67%

EINFX

• 1D: 0.00%
• 1M: -1.14%
• 6M: -1.18%
• YTD: -1.00%
• 1Y: 1.42%
• 3Y*: 2.65%
• 5Y*: -1.23%
• 10Y*: 1.07%
• ALL TIME*: 3.71%

*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)
EINFX Elfun Income Fund	$0.00	$0.00	$0.00
SSKEX State Street Emerging Markets Equity Index Fund	$0.00	$0.00	$0.00

SSKEX vs. EINFX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SSKEX State Street Emerging Markets Equity Index Fund	17.04%	33.79%	7.00%	9.50%	-20.23%	-2.80%	18.20%	18.16%	-14.78%	37.18%
EINFX Elfun Income Fund	-1.00%	7.35%	-0.73%	4.75%	-13.82%	-1.57%	7.81%	9.51%	-0.86%	3.91%

Correlation

The correlation between SSKEX and EINFX is 0.18, which is low. Their historical price movements had little consistent relationship.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.18
Correlation (3Y) Balances recent behavior with more history.	0.08
Correlation (5Y) Shows whether the relationship held over a longer period.	0.08
Correlation (10Y) Provides a long-term view across more market conditions.	0.02
Correlation (All Time) Calculated using the full available price history since Jan 4, 2016	0.02

The correlation between SSKEX and EINFX shifts across timeframes, from 0.02 (all time) to 0.18 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

SSKEX vs. EINFX — Risk / Return Rank

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

SSKEX

SSKEX Risk / Return Rank: 65
SSKEX Sharpe Ratio Rank: 65
SSKEX Sortino Ratio Rank: 59
SSKEX Omega Ratio Rank: 67
SSKEX Calmar Ratio Rank: 73
SSKEX Martin Ratio Rank: 59

EINFX

EINFX Risk / Return Rank: 17
EINFX Sharpe Ratio Rank: 18
EINFX Sortino Ratio Rank: 18
EINFX Omega Ratio Rank: 17
EINFX Calmar Ratio Rank: 17
EINFX Martin Ratio Rank: 14

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.

SSKEX vs. EINFX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street Emerging Markets Equity Index Fund (SSKEX) and Elfun Income Fund (EINFX). 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.

	SSKEX	EINFX	Difference
Sharpe ratio: Return per unit of total volatility	1.55	0.67	+0.87
Sortino ratio: Return per unit of downside risk	2.09	1.01	+1.08
Omega ratio: Gain probability vs. loss probability	1.29	1.12	+0.18
Calmar ratio: Return relative to maximum drawdown	2.35	0.80	+1.55
Martin ratio: Return relative to average drawdown	7.62	1.93	+5.69

SSKEX vs. EINFX - Sharpe Ratio Comparison

The current SSKEX Sharpe Ratio is 1.55, which is higher than the EINFX Sharpe Ratio of 0.67. The chart below compares the historical Sharpe Ratios of SSKEX and EINFX, 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

SSKEX vs. EINFX - Drawdown Comparison

The maximum SSKEX drawdown since its inception was -39.23%, which is greater than EINFX's maximum drawdown of -19.78%. Use the drawdown chart below to compare losses from any high point for SSKEX and EINFX.

Drawdown Indicators

	SSKEX	EINFX	Difference
Max Drawdown Largest peak-to-trough decline	-39.23%	-19.78%	-19.45%
Max Drawdown (1Y) Largest decline over 1 year	-13.74%	-3.40%	-10.34%
Max Drawdown (3Y) Largest decline over 3 years	-16.09%	-6.96%	-9.13%
Max Drawdown (5Y) Largest decline over 5 years	-34.55%	-19.78%	-14.77%
Max Drawdown (10Y) Largest decline over 10 years	-39.23%	-19.78%	-19.45%
Current Drawdown Current decline from peak	-10.46%	-6.24%	-4.22%
Average Drawdown Average peak-to-trough decline	-13.16%	-3.58%	-9.58%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.23%	1.40%	+2.83%

Volatility

SSKEX vs. EINFX - Volatility Comparison

State Street Emerging Markets Equity Index Fund (SSKEX) has a higher volatility of 8.23% compared to Elfun Income Fund (EINFX) at 0.95%. This indicates that SSKEX's price experiences larger fluctuations and is considered to be riskier than EINFX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SSKEX	EINFX	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.23%	0.95%	+7.28%
Volatility (6M) Calculated over the trailing 6-month period	18.96%	3.11%	+15.85%
Volatility (1Y) Calculated over the trailing 1-year period	20.90%	4.03%	+16.87%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.34%	6.51%	+10.83%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.64%	5.24%	+12.40%

SSKEX vs. EINFX - Expense Ratio Comparison

SSKEX has a 0.17% expense ratio, which is lower than EINFX's 0.29% expense ratio.

Dividends

SSKEX vs. EINFX - Dividend Comparison

SSKEX's dividend yield for the trailing twelve months is around 2.44%, less than EINFX's 3.57% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
EINFX Elfun Income Fund	3.57%	3.84%	3.04%	2.76%	4.09%	3.31%	3.15%	2.78%	2.88%	2.42%	3.34%	2.87%
SSKEX State Street Emerging Markets Equity Index Fund	2.44%	2.85%	2.90%	3.26%	3.90%	1.95%	1.84%	2.84%	3.01%	2.55%	2.29%	0.00%

Frequently Asked Questions

Can I hold both SSKEX and EINFX in my portfolio?

SSKEX and EINFX have a correlation of 0.18, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SSKEX or EINFX?

SSKEX has higher volatility (8.23%) compared to EINFX (0.95%). In terms of maximum drawdown, SSKEX dropped -39.23% vs EINFX's -19.78%.

Which has better risk-adjusted returns?

SSKEX currently has the higher Sharpe Ratio (1.54 vs 0.67), 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.