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

Correlation

The correlation between FLXSX and IWM is 1.00, 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.


-0.50.00.51.01.0

Performance

FLXSX vs. IWM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Flex Small Cap Index Fund (FLXSX) and iShares Russell 2000 ETF (IWM). The values are adjusted to include any dividend payments, if applicable.

60.00%70.00%80.00%90.00%AugustSeptemberOctoberNovemberDecember2025
76.03%
81.47%
FLXSX
IWM

Key characteristics

Sharpe Ratio

FLXSX:

1.00

IWM:

0.98

Sortino Ratio

FLXSX:

1.50

IWM:

1.48

Omega Ratio

FLXSX:

1.18

IWM:

1.18

Calmar Ratio

FLXSX:

1.05

IWM:

1.08

Martin Ratio

FLXSX:

4.98

IWM:

4.88

Ulcer Index

FLXSX:

4.16%

IWM:

4.18%

Daily Std Dev

FLXSX:

20.69%

IWM:

20.71%

Max Drawdown

FLXSX:

-43.21%

IWM:

-59.05%

Current Drawdown

FLXSX:

-6.57%

IWM:

-6.71%

Returns By Period

The year-to-date returns for both stocks are quite close, with FLXSX having a 2.07% return and IWM slightly lower at 2.04%.


FLXSX

YTD

2.07%

1M

2.61%

6M

4.96%

1Y

18.81%

5Y*

7.22%

10Y*

N/A

IWM

YTD

2.04%

1M

2.55%

6M

4.64%

1Y

18.54%

5Y*

7.32%

10Y*

8.34%

*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. IWM - Expense Ratio Comparison

FLXSX has a 0.00% expense ratio, which is lower than IWM's 0.19% 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%.


IWM
iShares Russell 2000 ETF
Expense ratio chart for IWM: current value at 0.19% compared with the broader market ranging from 0.00% to 2.12%.0.50%1.00%1.50%2.00%0.19%
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. IWM — 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 5353
Overall Rank
The Sharpe Ratio Rank of FLXSX is 4747
Sharpe Ratio Rank
The Sortino Ratio Rank of FLXSX is 5151
Sortino Ratio Rank
The Omega Ratio Rank of FLXSX is 4545
Omega Ratio Rank
The Calmar Ratio Rank of FLXSX is 6666
Calmar Ratio Rank
The Martin Ratio Rank of FLXSX is 5757
Martin Ratio Rank

IWM
The Risk-Adjusted Performance Rank of IWM is 4040
Overall Rank
The Sharpe Ratio Rank of IWM is 3737
Sharpe Ratio Rank
The Sortino Ratio Rank of IWM is 3737
Sortino Ratio Rank
The Omega Ratio Rank of IWM is 3636
Omega Ratio Rank
The Calmar Ratio Rank of IWM is 4444
Calmar Ratio Rank
The Martin Ratio Rank of IWM is 4545
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. IWM - Risk-Adjusted Performance Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Flex Small Cap Index Fund (FLXSX) and iShares Russell 2000 ETF (IWM). 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 1.00, compared to the broader market-1.000.001.002.003.004.001.000.98
The chart of Sortino ratio for FLXSX, currently valued at 1.50, compared to the broader market0.005.0010.001.501.48
The chart of Omega ratio for FLXSX, currently valued at 1.18, compared to the broader market1.002.003.004.001.181.18
The chart of Calmar ratio for FLXSX, currently valued at 1.05, compared to the broader market0.005.0010.0015.0020.001.051.08
The chart of Martin ratio for FLXSX, currently valued at 4.98, compared to the broader market0.0020.0040.0060.0080.004.984.88
FLXSX
IWM

The current FLXSX Sharpe Ratio is 1.00, which is comparable to the IWM Sharpe Ratio of 0.98. The chart below compares the historical Sharpe Ratios of FLXSX and IWM, 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 Ratio0.501.001.502.00AugustSeptemberOctoberNovemberDecember2025
1.00
0.98
FLXSX
IWM

Dividends

FLXSX vs. IWM - Dividend Comparison

FLXSX's dividend yield for the trailing twelve months is around 1.34%, more than IWM's 1.12% 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%
IWM
iShares Russell 2000 ETF
1.12%1.15%1.35%1.48%0.94%1.04%1.26%1.40%1.26%1.38%1.54%1.26%

Drawdowns

FLXSX vs. IWM - Drawdown Comparison

The maximum FLXSX drawdown since its inception was -43.21%, smaller than the maximum IWM drawdown of -59.05%. Use the drawdown chart below to compare losses from any high point for FLXSX and IWM. For additional features, visit the drawdowns tool.


-15.00%-10.00%-5.00%0.00%AugustSeptemberOctoberNovemberDecember2025
-6.57%
-6.71%
FLXSX
IWM

Volatility

FLXSX vs. IWM - Volatility Comparison

Fidelity Flex Small Cap Index Fund (FLXSX) and iShares Russell 2000 ETF (IWM) have volatilities of 6.55% and 6.50%, 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.


4.00%5.00%6.00%7.00%8.00%9.00%10.00%AugustSeptemberOctoberNovemberDecember2025
6.55%
6.50%
FLXSX
IWM
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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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