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FLXSX vs. FXAIX
Performance
Risk-Adjusted Performance
Dividends
Drawdowns
Volatility

Correlation

The correlation between FLXSX and FXAIX is 0.81, 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.


-0.50.00.51.00.8

Performance

FLXSX vs. FXAIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Flex Small Cap Index Fund (FLXSX) and Fidelity 500 Index Fund (FXAIX). The values are adjusted to include any dividend payments, if applicable.

-5.00%0.00%5.00%10.00%AugustSeptemberOctoberNovemberDecember2025
3.72%
8.03%
FLXSX
FXAIX

Key characteristics

Sharpe Ratio

FLXSX:

0.85

FXAIX:

2.03

Sortino Ratio

FLXSX:

1.32

FXAIX:

2.71

Omega Ratio

FLXSX:

1.16

FXAIX:

1.37

Calmar Ratio

FLXSX:

0.88

FXAIX:

3.09

Martin Ratio

FLXSX:

4.31

FXAIX:

12.93

Ulcer Index

FLXSX:

4.12%

FXAIX:

2.02%

Daily Std Dev

FLXSX:

20.74%

FXAIX:

12.87%

Max Drawdown

FLXSX:

-43.21%

FXAIX:

-33.79%

Current Drawdown

FLXSX:

-7.09%

FXAIX:

-2.17%

Returns By Period

In the year-to-date period, FLXSX achieves a 1.50% return, which is significantly higher than FXAIX's 1.21% return.


FLXSX

YTD

1.50%

1M

-4.05%

6M

1.85%

1Y

19.18%

5Y*

7.11%

10Y*

N/A

FXAIX

YTD

1.21%

1M

-1.95%

6M

7.19%

1Y

26.57%

5Y*

14.15%

10Y*

13.28%

*Annualized

Compare stocks, funds, or ETFs

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


FLXSX vs. FXAIX - Expense Ratio Comparison

FLXSX has a 0.00% expense ratio, which is lower than FXAIX's 0.02% 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%.


FXAIX
Fidelity 500 Index Fund
Expense ratio chart for FXAIX: current value at 0.02% compared with the broader market ranging from 0.00% to 2.12%.0.50%1.00%1.50%2.00%0.02%
Expense ratio chart for FLXSX: current value at 0.00% compared with the broader market ranging from 0.00% to 2.12%.0.50%1.00%1.50%2.00%0.00%

Risk-Adjusted Performance

FLXSX vs. FXAIX — Risk-Adjusted Performance Rank

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

FLXSX
The Risk-Adjusted Performance Rank of FLXSX is 6161
Overall Rank
The Sharpe Ratio Rank of FLXSX is 5757
Sharpe Ratio Rank
The Sortino Ratio Rank of FLXSX is 6161
Sortino Ratio Rank
The Omega Ratio Rank of FLXSX is 5555
Omega Ratio Rank
The Calmar Ratio Rank of FLXSX is 6969
Calmar Ratio Rank
The Martin Ratio Rank of FLXSX is 6262
Martin Ratio Rank

FXAIX
The Risk-Adjusted Performance Rank of FXAIX is 9191
Overall Rank
The Sharpe Ratio Rank of FXAIX is 9191
Sharpe Ratio Rank
The Sortino Ratio Rank of FXAIX is 9090
Sortino Ratio Rank
The Omega Ratio Rank of FXAIX is 9090
Omega Ratio Rank
The Calmar Ratio Rank of FXAIX is 9393
Calmar Ratio Rank
The Martin Ratio Rank of FXAIX is 9393
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.

FLXSX vs. FXAIX - Risk-Adjusted Performance Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Flex Small Cap Index Fund (FLXSX) and Fidelity 500 Index Fund (FXAIX). 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 FLXSX, currently valued at 0.85, compared to the broader market-1.000.001.002.003.004.000.852.03
The chart of Sortino ratio for FLXSX, currently valued at 1.32, compared to the broader market0.002.004.006.008.0010.001.322.71
The chart of Omega ratio for FLXSX, currently valued at 1.16, compared to the broader market1.002.003.004.001.161.37
The chart of Calmar ratio for FLXSX, currently valued at 0.88, compared to the broader market0.005.0010.0015.000.883.09
The chart of Martin ratio for FLXSX, currently valued at 4.30, compared to the broader market0.0020.0040.0060.0080.004.3112.93
FLXSX
FXAIX

The current FLXSX Sharpe Ratio is 0.85, which is lower than the FXAIX Sharpe Ratio of 2.03. The chart below compares the historical Sharpe Ratios of FLXSX and FXAIX, 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 Ratio0.001.002.003.004.00AugustSeptemberOctoberNovemberDecember2025
0.85
2.03
FLXSX
FXAIX

Dividends

FLXSX vs. FXAIX - Dividend Comparison

FLXSX's dividend yield for the trailing twelve months is around 1.34%, more than FXAIX's 1.23% yield.


TTM20242023202220212020201920182017201620152014
FLXSX
Fidelity Flex Small Cap Index Fund
1.34%1.36%1.49%1.26%1.10%1.06%1.31%1.16%0.54%0.00%0.00%0.00%
FXAIX
Fidelity 500 Index Fund
1.23%1.25%1.45%1.69%1.22%1.60%1.95%2.07%1.81%2.01%2.56%2.63%

Drawdowns

FLXSX vs. FXAIX - Drawdown Comparison

The maximum FLXSX drawdown since its inception was -43.21%, which is greater than FXAIX's maximum drawdown of -33.79%. Use the drawdown chart below to compare losses from any high point for FLXSX and FXAIX. For additional features, visit the drawdowns tool.


-15.00%-10.00%-5.00%0.00%AugustSeptemberOctoberNovemberDecember2025
-7.09%
-2.17%
FLXSX
FXAIX

Volatility

FLXSX vs. FXAIX - Volatility Comparison

Fidelity Flex Small Cap Index Fund (FLXSX) has a higher volatility of 6.58% compared to Fidelity 500 Index Fund (FXAIX) at 4.98%. This indicates that FLXSX's price experiences larger fluctuations and is considered to be riskier than FXAIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.


2.00%4.00%6.00%8.00%10.00%AugustSeptemberOctoberNovemberDecember2025
6.58%
4.98%
FLXSX
FXAIX
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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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