SSAIX vs. TPLGX

Last updated Jun 23, 2026

SSAIX (State Street International Stock Selection Fund) and TPLGX (T. Rowe Price Institutional Large Cap Core Growth Fund) are both mutual funds - SSAIX is a Foreign Large Cap Equities fund managed by State Street, while TPLGX is a Large Cap Growth Equities fund managed by T. Rowe Price. Over the past 10 years, SSAIX returned 8.40%/yr vs 16.54%/yr for TPLGX. A 0.62 correlation means they provide meaningful diversification when combined. SSAIX charges 1.00%/yr vs 0.57%/yr for TPLGX.

Performance

SSAIX vs. TPLGX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street International Stock Selection Fund (SSAIX) and T. Rowe Price Institutional Large Cap Core Growth Fund (TPLGX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SSAIX achieves a 11.17% return, which is significantly higher than TPLGX's 1.91% return. Over the past 10 years, SSAIX has underperformed TPLGX with an annualized return of 8.40%, while TPLGX has yielded a comparatively higher 16.54% annualized return.

SSAIX

• 1D: 0.06%
• 1M: 1.47%
• YTD: 11.17%
• 6M: 1.47%
• 1Y: 22.09%
• 3Y*: 18.18%
• 5Y*: 10.21%
• 10Y*: 8.40%

TPLGX

• 1D: 1.96%
• 1M: -1.62%
• YTD: 1.91%
• 6M: 1.63%
• 1Y: 18.25%
• 3Y*: 22.52%
• 5Y*: 10.05%
• 10Y*: 16.54%

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

SSAIX vs. TPLGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SSAIX State Street International Stock Selection Fund	11.17%	31.50%	7.90%	17.53%	-13.60%	12.77%	2.88%	16.78%	-17.69%	22.21%
TPLGX T. Rowe Price Institutional Large Cap Core Growth Fund	1.91%	18.66%	35.22%	49.63%	-38.49%	17.84%	34.70%	30.15%	2.18%	36.49%

Correlation

The correlation between SSAIX and TPLGX is 0.44, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.44
Correlation (3Y) Calculated over the trailing 3-year period	0.43
Correlation (5Y) Calculated over the trailing 5-year period	0.54
Correlation (10Y) Calculated over the trailing 10-year period	0.55
Correlation (All Time) Calculated using the full available price history since Oct 1, 2003	0.62

The correlation between SSAIX and TPLGX shifts across timeframes, from 0.43 (3 years) to 0.62 (all time), reflecting how their relationship changes across market environments.

Return for Risk

SSAIX vs. TPLGX — Risk / Return Rank

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

SSAIX

SSAIX Risk / Return Rank: 35
SSAIX Sharpe Ratio Rank: 31
SSAIX Sortino Ratio Rank: 24
SSAIX Omega Ratio Rank: 39
SSAIX Calmar Ratio Rank: 48
SSAIX Martin Ratio Rank: 33

TPLGX

TPLGX Risk / Return Rank: 14
TPLGX Sharpe Ratio Rank: 17
TPLGX Sortino Ratio Rank: 16
TPLGX Omega Ratio Rank: 15
TPLGX Calmar Ratio Rank: 12
TPLGX Martin Ratio Rank: 13

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. TPLGX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street International Stock Selection Fund (SSAIX) and T. Rowe Price Institutional Large Cap Core Growth Fund (TPLGX). 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	TPLGX	Difference
Sharpe ratio: Return per unit of total volatility	1.49	1.08	+0.42
Sortino ratio: Return per unit of downside risk	1.89	1.54	+0.35
Omega ratio: Gain probability vs. loss probability	1.31	1.19	+0.12
Calmar ratio: Return relative to maximum drawdown	2.52	1.04	+1.48
Martin ratio: Return relative to average drawdown	7.02	3.38	+3.64

SSAIX vs. TPLGX - Sharpe Ratio Comparison

The current SSAIX Sharpe Ratio is 1.49, which is higher than the TPLGX Sharpe Ratio of 1.08. The chart below compares the historical Sharpe Ratios of SSAIX and TPLGX, 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. TPLGX - Drawdown Comparison

The maximum SSAIX drawdown since its inception was -61.30%, which is greater than TPLGX's maximum drawdown of -54.57%. Use the drawdown chart below to compare losses from any high point for SSAIX and TPLGX.

Drawdown Indicators

	SSAIX	TPLGX	Difference
Max Drawdown Largest peak-to-trough decline	-61.30%	-54.57%	-6.73%
Max Drawdown (1Y) Largest decline over 1 year	-10.98%	-17.15%	+6.17%
Max Drawdown (3Y) Largest decline over 3 years	-13.00%	-28.23%	+15.23%
Max Drawdown (5Y) Largest decline over 5 years	-29.25%	-43.45%	+14.20%
Max Drawdown (10Y) Largest decline over 10 years	-41.34%	-43.45%	+2.11%
Current Drawdown Current decline from peak	-1.24%	-4.05%	+2.81%
Average Drawdown Average peak-to-trough decline	-15.79%	-8.66%	-7.13%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.57%	5.24%	-1.67%

Volatility

SSAIX vs. TPLGX - Volatility Comparison

The current volatility for State Street International Stock Selection Fund (SSAIX) is 4.48%, while T. Rowe Price Institutional Large Cap Core Growth Fund (TPLGX) has a volatility of 6.42%. This indicates that SSAIX experiences smaller price fluctuations and is considered to be less risky than TPLGX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SSAIX	TPLGX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.48%	6.42%	-1.94%
Volatility (6M) Calculated over the trailing 6-month period	15.76%	13.26%	+2.50%
Volatility (1Y) Calculated over the trailing 1-year period	18.53%	16.49%	+2.04%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.88%	24.41%	-7.53%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.03%	22.96%	-5.93%

SSAIX vs. TPLGX - Expense Ratio Comparison

SSAIX has a 1.00% expense ratio, which is higher than TPLGX's 0.57% expense ratio.

Dividends

SSAIX vs. TPLGX - Dividend Comparison

SSAIX has not paid dividends to shareholders, while TPLGX's dividend yield for the trailing twelve months is around 19.92%.

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%
TPLGX T. Rowe Price Institutional Large Cap Core Growth Fund	19.92%	20.30%	12.87%	3.70%	4.39%	8.81%	0.59%	0.60%	1.65%	1.39%	0.25%	0.44%

Frequently Asked Questions

Can I hold both SSAIX and TPLGX in my portfolio?

SSAIX and TPLGX have a correlation of 0.44, 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 TPLGX?

TPLGX has higher volatility (6.42%) compared to SSAIX (4.48%). In terms of maximum drawdown, SSAIX dropped -61.30% vs TPLGX's -54.57%.

Which has better risk-adjusted returns?

SSAIX currently has the higher Sharpe Ratio (1.49 vs 1.08), 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.