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

Correlation

The correlation between FMDGX and VMGIX 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.


Performance

FMDGX vs. VMGIX - Performance Comparison

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

40.00%50.00%60.00%70.00%80.00%90.00%December2025FebruaryMarchAprilMay
66.73%
71.69%
FMDGX
VMGIX

Key characteristics

Sharpe Ratio

FMDGX:

0.69

VMGIX:

0.66

Sortino Ratio

FMDGX:

1.10

VMGIX:

1.04

Omega Ratio

FMDGX:

1.15

VMGIX:

1.15

Calmar Ratio

FMDGX:

0.68

VMGIX:

0.66

Martin Ratio

FMDGX:

2.29

VMGIX:

2.39

Ulcer Index

FMDGX:

7.46%

VMGIX:

6.00%

Daily Std Dev

FMDGX:

24.68%

VMGIX:

21.83%

Max Drawdown

FMDGX:

-38.85%

VMGIX:

-60.20%

Current Drawdown

FMDGX:

-10.21%

VMGIX:

-8.11%

Returns By Period

In the year-to-date period, FMDGX achieves a -1.03% return, which is significantly lower than VMGIX's 0.13% return.


FMDGX

YTD

-1.03%

1M

18.37%

6M

5.06%

1Y

15.68%

5Y*

11.68%

10Y*

N/A

VMGIX

YTD

0.13%

1M

14.98%

6M

3.95%

1Y

12.29%

5Y*

12.33%

10Y*

9.61%

*Annualized

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FMDGX vs. VMGIX - Expense Ratio Comparison

FMDGX has a 0.05% expense ratio, which is lower than VMGIX'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%.


Risk-Adjusted Performance

FMDGX vs. VMGIX — 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 5959
Overall Rank
The Sharpe Ratio Rank of FMDGX is 5656
Sharpe Ratio Rank
The Sortino Ratio Rank of FMDGX is 5959
Sortino Ratio Rank
The Omega Ratio Rank of FMDGX is 5858
Omega Ratio Rank
The Calmar Ratio Rank of FMDGX is 6767
Calmar Ratio Rank
The Martin Ratio Rank of FMDGX is 5555
Martin Ratio Rank

VMGIX
The Risk-Adjusted Performance Rank of VMGIX is 5858
Overall Rank
The Sharpe Ratio Rank of VMGIX is 5555
Sharpe Ratio Rank
The Sortino Ratio Rank of VMGIX is 5757
Sortino Ratio Rank
The Omega Ratio Rank of VMGIX is 5656
Omega Ratio Rank
The Calmar Ratio Rank of VMGIX is 6767
Calmar Ratio Rank
The Martin Ratio Rank of VMGIX is 5656
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. VMGIX - Risk-Adjusted Performance Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Mid Cap Growth Index Fund (FMDGX) and Vanguard Mid-Cap Growth Index Fund (VMGIX). 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 current FMDGX Sharpe Ratio is 0.69, which is comparable to the VMGIX Sharpe Ratio of 0.66. The chart below compares the historical Sharpe Ratios of FMDGX and VMGIX, 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
0.70
0.66
FMDGX
VMGIX

Dividends

FMDGX vs. VMGIX - Dividend Comparison

FMDGX's dividend yield for the trailing twelve months is around 0.47%, less than VMGIX's 0.57% yield.


TTM20242023202220212020201920182017201620152014
FMDGX
Fidelity Mid Cap Growth Index Fund
0.47%0.47%0.63%0.81%0.42%0.36%0.27%0.00%0.00%0.00%0.00%0.00%
VMGIX
Vanguard Mid-Cap Growth Index Fund
0.57%0.56%0.60%0.64%0.23%0.46%0.67%0.70%0.61%0.70%0.69%0.64%

Drawdowns

FMDGX vs. VMGIX - Drawdown Comparison

The maximum FMDGX drawdown since its inception was -38.85%, smaller than the maximum VMGIX drawdown of -60.20%. Use the drawdown chart below to compare losses from any high point for FMDGX and VMGIX. For additional features, visit the drawdowns tool.


-25.00%-20.00%-15.00%-10.00%-5.00%0.00%December2025FebruaryMarchAprilMay
-10.21%
-8.11%
FMDGX
VMGIX

Volatility

FMDGX vs. VMGIX - Volatility Comparison

Fidelity Mid Cap Growth Index Fund (FMDGX) has a higher volatility of 15.01% compared to Vanguard Mid-Cap Growth Index Fund (VMGIX) at 13.61%. This indicates that FMDGX's price experiences larger fluctuations and is considered to be riskier than VMGIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.


4.00%6.00%8.00%10.00%12.00%14.00%16.00%December2025FebruaryMarchAprilMay
15.01%
13.61%
FMDGX
VMGIX