SSAIX vs. VFIAX

Last updated Jun 24, 2026

SSAIX (State Street International Stock Selection Fund) and VFIAX (Vanguard 500 Index Fund Admiral Shares) are both mutual funds - SSAIX is a Foreign Large Cap Equities fund managed by State Street, while VFIAX is a S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, SSAIX returned 9.13%/yr vs 15.76%/yr for VFIAX. A 0.65 correlation means they provide meaningful diversification when combined. SSAIX charges 1.00%/yr vs 0.04%/yr for VFIAX.

Performance

SSAIX vs. VFIAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street International Stock Selection Fund (SSAIX) and Vanguard 500 Index Fund Admiral Shares (VFIAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SSAIX achieves a 11.52% return, which is significantly higher than VFIAX's 9.77% return. Over the past 10 years, SSAIX has underperformed VFIAX with an annualized return of 9.13%, while VFIAX has yielded a comparatively higher 15.76% annualized return.

SSAIX

• 1D: 0.31%
• 1M: 1.78%
• YTD: 11.52%
• 6M: 1.27%
• 1Y: 22.56%
• 3Y*: 19.44%
• 5Y*: 10.05%
• 10Y*: 9.13%

VFIAX

• 1D: -0.36%
• 1M: 0.10%
• YTD: 9.77%
• 6M: 8.77%
• 1Y: 25.48%
• 3Y*: 21.36%
• 5Y*: 13.57%
• 10Y*: 15.76%

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

SSAIX vs. VFIAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SSAIX State Street International Stock Selection Fund	11.52%	31.50%	7.90%	17.53%	-13.60%	12.77%	2.88%	16.78%	-17.69%	22.21%
VFIAX Vanguard 500 Index Fund Admiral Shares	9.77%	17.83%	24.97%	26.24%	-18.16%	28.65%	18.32%	31.46%	-4.45%	21.78%

Correlation

The correlation between SSAIX and VFIAX is 0.53, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.53
Correlation (3Y) Calculated over the trailing 3-year period	0.53
Correlation (5Y) Calculated over the trailing 5-year period	0.63
Correlation (10Y) Calculated over the trailing 10-year period	0.64
Correlation (All Time) Calculated using the full available price history since Nov 13, 2000	0.65

The correlation between SSAIX and VFIAX shifts across timeframes, from 0.53 (3 years) to 0.65 (all time), reflecting how their relationship changes across market environments.

Return for Risk

SSAIX vs. VFIAX — Risk / Return Rank

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

SSAIX

SSAIX Risk / Return Rank: 36
SSAIX Sharpe Ratio Rank: 32
SSAIX Sortino Ratio Rank: 25
SSAIX Omega Ratio Rank: 40
SSAIX Calmar Ratio Rank: 48
SSAIX Martin Ratio Rank: 33

VFIAX

VFIAX Risk / Return Rank: 65
VFIAX Sharpe Ratio Rank: 63
VFIAX Sortino Ratio Rank: 57
VFIAX Omega Ratio Rank: 59
VFIAX Calmar Ratio Rank: 68
VFIAX Martin Ratio Rank: 78

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.

SSAIX vs. VFIAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street International Stock Selection Fund (SSAIX) and Vanguard 500 Index Fund Admiral Shares (VFIAX). 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.

	SSAIX	VFIAX	Difference
Sharpe ratio: Return per unit of total volatility	1.51	2.15	-0.63
Sortino ratio: Return per unit of downside risk	1.92	2.91	-0.99
Omega ratio: Gain probability vs. loss probability	1.31	1.39	-0.08
Calmar ratio: Return relative to maximum drawdown	2.55	3.01	-0.46
Martin ratio: Return relative to average drawdown	7.12	13.60	-6.47

SSAIX vs. VFIAX - Sharpe Ratio Comparison

The current SSAIX Sharpe Ratio is 1.51, which is comparable to the VFIAX Sharpe Ratio of 2.15. The chart below compares the historical Sharpe Ratios of SSAIX and VFIAX, 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

SSAIX vs. VFIAX - Drawdown Comparison

The maximum SSAIX drawdown since its inception was -61.30%, which is greater than VFIAX's maximum drawdown of -55.20%. Use the drawdown chart below to compare losses from any high point for SSAIX and VFIAX.

Drawdown Indicators

	SSAIX	VFIAX	Difference
Max Drawdown Largest peak-to-trough decline	-61.30%	-55.20%	-6.10%
Max Drawdown (1Y) Largest decline over 1 year	-10.98%	-8.90%	-2.08%
Max Drawdown (3Y) Largest decline over 3 years	-13.00%	-18.75%	+5.75%
Max Drawdown (5Y) Largest decline over 5 years	-29.25%	-24.53%	-4.72%
Max Drawdown (10Y) Largest decline over 10 years	-41.34%	-33.83%	-7.51%
Current Drawdown Current decline from peak	-0.93%	-1.72%	+0.79%
Average Drawdown Average peak-to-trough decline	-15.79%	-9.38%	-6.41%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.57%	1.97%	+1.60%

Volatility

SSAIX vs. VFIAX - Volatility Comparison

State Street International Stock Selection Fund (SSAIX) and Vanguard 500 Index Fund Admiral Shares (VFIAX) have volatilities of 4.46% and 4.67%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SSAIX	VFIAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.46%	4.67%	-0.21%
Volatility (6M) Calculated over the trailing 6-month period	15.75%	9.84%	+5.91%
Volatility (1Y) Calculated over the trailing 1-year period	18.53%	12.50%	+6.03%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.88%	16.99%	-0.11%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.00%	18.11%	-1.11%

SSAIX vs. VFIAX - Expense Ratio Comparison

SSAIX has a 1.00% expense ratio, which is higher than VFIAX's 0.04% expense ratio.

Dividends

SSAIX vs. VFIAX - Dividend Comparison

SSAIX has not paid dividends to shareholders, while VFIAX's dividend yield for the trailing twelve months is around 1.03%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SSAIX State Street International Stock Selection Fund	0.00%	0.00%	3.64%	5.68%	3.47%	4.55%	1.88%	3.34%	5.99%	3.63%	2.74%	2.55%
VFIAX Vanguard 500 Index Fund Admiral Shares	1.03%	1.12%	1.24%	1.45%	1.68%	1.24%	1.53%	1.87%	2.05%	1.78%	2.02%	2.10%

Frequently Asked Questions

Can I hold both SSAIX and VFIAX in my portfolio?

SSAIX and VFIAX have a correlation of 0.53, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SSAIX or VFIAX?

VFIAX has higher volatility (4.67%) compared to SSAIX (4.46%). In terms of maximum drawdown, SSAIX dropped -61.30% vs VFIAX's -55.20%.

Which has better risk-adjusted returns?

VFIAX currently has the higher Sharpe Ratio (2.15 vs 1.51), 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.