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

Correlation

The correlation between FMDGX and FXAIX is 0.88, 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.


-0.50.00.51.0
Correlation: 0.9

Performance

FMDGX vs. FXAIX - Performance Comparison

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

40.00%60.00%80.00%100.00%120.00%December2025FebruaryMarchAprilMay
62.27%
107.48%
FMDGX
FXAIX

Key characteristics

Sharpe Ratio

FMDGX:

0.48

FXAIX:

0.74

Sortino Ratio

FMDGX:

0.83

FXAIX:

1.14

Omega Ratio

FMDGX:

1.11

FXAIX:

1.17

Calmar Ratio

FMDGX:

0.47

FXAIX:

0.77

Martin Ratio

FMDGX:

1.59

FXAIX:

3.06

Ulcer Index

FMDGX:

7.43%

FXAIX:

4.72%

Daily Std Dev

FMDGX:

24.53%

FXAIX:

19.51%

Max Drawdown

FMDGX:

-38.85%

FXAIX:

-33.79%

Current Drawdown

FMDGX:

-12.61%

FXAIX:

-7.24%

Returns By Period

In the year-to-date period, FMDGX achieves a -3.68% return, which is significantly lower than FXAIX's -2.95% return.


FMDGX

YTD

-3.68%

1M

0.96%

6M

2.29%

1Y

13.27%

5Y*

11.70%

10Y*

N/A

FXAIX

YTD

-2.95%

1M

0.02%

6M

-0.11%

1Y

13.78%

5Y*

16.78%

10Y*

12.36%

*Annualized

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FMDGX vs. FXAIX - Expense Ratio Comparison

FMDGX has a 0.05% expense ratio, which is higher than FXAIX's 0.02% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.


Expense ratio chart for FMDGX: current value is 0.05%, compared with the broader market range of 0.00% to 2.12%.0.50%1.00%1.50%2.00%
FMDGX: 0.05%
Expense ratio chart for FXAIX: current value is 0.02%, compared with the broader market range of 0.00% to 2.12%.0.50%1.00%1.50%2.00%
FXAIX: 0.02%

Risk-Adjusted Performance

FMDGX vs. FXAIX — Risk-Adjusted Performance Rank

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

FMDGX
The Risk-Adjusted Performance Rank of FMDGX is 5555
Overall Rank
The Sharpe Ratio Rank of FMDGX is 5252
Sharpe Ratio Rank
The Sortino Ratio Rank of FMDGX is 5656
Sortino Ratio Rank
The Omega Ratio Rank of FMDGX is 5555
Omega Ratio Rank
The Calmar Ratio Rank of FMDGX is 6060
Calmar Ratio Rank
The Martin Ratio Rank of FMDGX is 5151
Martin Ratio Rank

FXAIX
The Risk-Adjusted Performance Rank of FXAIX is 7272
Overall Rank
The Sharpe Ratio Rank of FXAIX is 6868
Sharpe Ratio Rank
The Sortino Ratio Rank of FXAIX is 6969
Sortino Ratio Rank
The Omega Ratio Rank of FXAIX is 7272
Omega Ratio Rank
The Calmar Ratio Rank of FXAIX is 7979
Calmar Ratio Rank
The Martin Ratio Rank of FXAIX is 7272
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.

FMDGX vs. FXAIX - Risk-Adjusted Performance Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Mid Cap Growth Index Fund (FMDGX) 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.


The chart of Sharpe ratio for FMDGX, currently valued at 0.57, compared to the broader market-2.00-1.000.001.002.003.00
FMDGX: 0.57
FXAIX: 0.74
The chart of Sortino ratio for FMDGX, currently valued at 0.94, compared to the broader market-2.000.002.004.006.008.00
FMDGX: 0.94
FXAIX: 1.14
The chart of Omega ratio for FMDGX, currently valued at 1.13, compared to the broader market0.501.001.502.002.503.00
FMDGX: 1.13
FXAIX: 1.17
The chart of Calmar ratio for FMDGX, currently valued at 0.55, compared to the broader market0.002.004.006.008.0010.00
FMDGX: 0.55
FXAIX: 0.77
The chart of Martin ratio for FMDGX, currently valued at 1.87, compared to the broader market0.0010.0020.0030.0040.00
FMDGX: 1.87
FXAIX: 3.06

The current FMDGX Sharpe Ratio is 0.48, which is lower than the FXAIX Sharpe Ratio of 0.74. The chart below compares the historical Sharpe Ratios of FMDGX 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 Ratio0.001.002.003.00December2025FebruaryMarchAprilMay
0.57
0.74
FMDGX
FXAIX

Dividends

FMDGX vs. FXAIX - Dividend Comparison

FMDGX's dividend yield for the trailing twelve months is around 0.48%, less than FXAIX's 1.31% yield.


TTM20242023202220212020201920182017201620152014
FMDGX
Fidelity Mid Cap Growth Index Fund
0.48%0.47%0.63%0.81%6.43%0.36%0.29%0.00%0.00%0.00%0.00%0.00%
FXAIX
Fidelity 500 Index Fund
1.31%1.25%1.45%1.69%1.22%1.60%1.95%2.07%1.81%2.01%2.56%2.63%

Drawdowns

FMDGX vs. FXAIX - Drawdown Comparison

The maximum FMDGX drawdown since its inception was -38.85%, which is greater than FXAIX's maximum drawdown of -33.79%. Use the drawdown chart below to compare losses from any high point for FMDGX and FXAIX. For additional features, visit the drawdowns tool.


-25.00%-20.00%-15.00%-10.00%-5.00%0.00%December2025FebruaryMarchAprilMay
-12.61%
-7.24%
FMDGX
FXAIX

Volatility

FMDGX vs. FXAIX - Volatility Comparison

Fidelity Mid Cap Growth Index Fund (FMDGX) has a higher volatility of 16.27% compared to Fidelity 500 Index Fund (FXAIX) at 14.31%. This indicates that FMDGX'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.


0.00%5.00%10.00%15.00%December2025FebruaryMarchAprilMay
16.27%
14.31%
FMDGX
FXAIX