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SSMKX vs. PREIX
Performance
Risk-Adjusted Performance
Dividends
Drawdowns
Volatility

Correlation

The correlation between SSMKX and PREIX is 0.86, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.


-0.50.00.51.00.9

Performance

SSMKX vs. PREIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street Small/Mid Cap Equity Index Fund (SSMKX) and T. Rowe Price Equity Index 500 Fund (PREIX). The values are adjusted to include any dividend payments, if applicable.

100.00%150.00%200.00%SeptemberOctoberNovemberDecember2025February
94.63%
234.71%
SSMKX
PREIX

Key characteristics

Sharpe Ratio

SSMKX:

1.37

PREIX:

1.94

Sortino Ratio

SSMKX:

1.95

PREIX:

2.61

Omega Ratio

SSMKX:

1.24

PREIX:

1.35

Calmar Ratio

SSMKX:

0.78

PREIX:

2.94

Martin Ratio

SSMKX:

6.63

PREIX:

12.13

Ulcer Index

SSMKX:

3.64%

PREIX:

2.05%

Daily Std Dev

SSMKX:

17.48%

PREIX:

12.79%

Max Drawdown

SSMKX:

-45.04%

PREIX:

-55.32%

Current Drawdown

SSMKX:

-13.80%

PREIX:

0.00%

Returns By Period

In the year-to-date period, SSMKX achieves a 5.40% return, which is significantly higher than PREIX's 4.09% return.


SSMKX

YTD

5.40%

1M

2.58%

6M

15.02%

1Y

19.60%

5Y*

5.71%

10Y*

N/A

PREIX

YTD

4.09%

1M

2.85%

6M

10.65%

1Y

22.94%

5Y*

13.99%

10Y*

12.87%

*Annualized

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.


SSMKX vs. PREIX - Expense Ratio Comparison

SSMKX has a 0.05% expense ratio, which is lower than PREIX's 0.15% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.


PREIX
T. Rowe Price Equity Index 500 Fund
Expense ratio chart for PREIX: current value at 0.15% compared with the broader market ranging from 0.00% to 2.12%.0.50%1.00%1.50%2.00%0.15%
Expense ratio chart for SSMKX: current value at 0.05% compared with the broader market ranging from 0.00% to 2.12%.0.50%1.00%1.50%2.00%0.05%

Risk-Adjusted Performance

SSMKX vs. PREIX — Risk-Adjusted Performance Rank

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

SSMKX
The Risk-Adjusted Performance Rank of SSMKX is 6363
Overall Rank
The Sharpe Ratio Rank of SSMKX is 6565
Sharpe Ratio Rank
The Sortino Ratio Rank of SSMKX is 6666
Sortino Ratio Rank
The Omega Ratio Rank of SSMKX is 6262
Omega Ratio Rank
The Calmar Ratio Rank of SSMKX is 5252
Calmar Ratio Rank
The Martin Ratio Rank of SSMKX is 7070
Martin Ratio Rank

PREIX
The Risk-Adjusted Performance Rank of PREIX is 8787
Overall Rank
The Sharpe Ratio Rank of PREIX is 8686
Sharpe Ratio Rank
The Sortino Ratio Rank of PREIX is 8484
Sortino Ratio Rank
The Omega Ratio Rank of PREIX is 8585
Omega Ratio Rank
The Calmar Ratio Rank of PREIX is 9090
Calmar Ratio Rank
The Martin Ratio Rank of PREIX is 9090
Martin Ratio Rank
The risk-adjusted ranks indicate the investment's position relative to the market. A rank closer to 100 signifies top-performing investments, while a rank closer to 0 might suggest underperformance, based on the selected ratio. The values are calculated based on the past 12 months of returns.

SSMKX vs. PREIX - Risk-Adjusted Performance Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street Small/Mid Cap Equity Index Fund (SSMKX) and T. Rowe Price Equity Index 500 Fund (PREIX). 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.


Sharpe ratio
The chart of Sharpe ratio for SSMKX, currently valued at 1.37, compared to the broader market-1.000.001.002.003.004.001.371.94
The chart of Sortino ratio for SSMKX, currently valued at 1.95, compared to the broader market0.002.004.006.008.0010.0012.001.952.61
The chart of Omega ratio for SSMKX, currently valued at 1.24, compared to the broader market1.002.003.004.001.241.35
The chart of Calmar ratio for SSMKX, currently valued at 0.78, compared to the broader market0.005.0010.0015.0020.000.782.94
The chart of Martin ratio for SSMKX, currently valued at 6.63, compared to the broader market0.0020.0040.0060.0080.006.6312.13
SSMKX
PREIX

The current SSMKX Sharpe Ratio is 1.37, which is comparable to the PREIX Sharpe Ratio of 1.94. The chart below compares the historical Sharpe Ratios of SSMKX and PREIX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.


Rolling 12-month Sharpe Ratio1.001.502.002.503.003.50SeptemberOctoberNovemberDecember2025February
1.37
1.94
SSMKX
PREIX

Dividends

SSMKX vs. PREIX - Dividend Comparison

SSMKX's dividend yield for the trailing twelve months is around 2.01%, more than PREIX's 1.08% yield.


TTM20242023202220212020201920182017201620152014
SSMKX
State Street Small/Mid Cap Equity Index Fund
2.01%2.12%1.67%1.73%3.63%0.67%2.29%1.73%4.77%1.29%0.68%0.00%
PREIX
T. Rowe Price Equity Index 500 Fund
1.08%1.13%1.33%1.50%1.15%1.56%1.78%1.95%1.65%1.83%2.02%1.69%

Drawdowns

SSMKX vs. PREIX - Drawdown Comparison

The maximum SSMKX drawdown since its inception was -45.04%, smaller than the maximum PREIX drawdown of -55.32%. Use the drawdown chart below to compare losses from any high point for SSMKX and PREIX. For additional features, visit the drawdowns tool.


-25.00%-20.00%-15.00%-10.00%-5.00%0.00%SeptemberOctoberNovemberDecember2025February
-13.80%
0
SSMKX
PREIX

Volatility

SSMKX vs. PREIX - Volatility Comparison

State Street Small/Mid Cap Equity Index Fund (SSMKX) has a higher volatility of 3.86% compared to T. Rowe Price Equity Index 500 Fund (PREIX) at 3.21%. This indicates that SSMKX's price experiences larger fluctuations and is considered to be riskier than PREIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.


2.00%3.00%4.00%5.00%6.00%7.00%8.00%SeptemberOctoberNovemberDecember2025February
3.86%
3.21%
SSMKX
PREIX
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Disclaimer

The information contained herein does not constitute investment advice and made available for educational purposes only. Prices and returns on equities are listed without consideration of fees, commissions, taxes, penalties, or interest payable due to purchasing, holding, or selling.

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