FMDGX vs. VOO
Compare and contrast key facts about Fidelity Mid Cap Growth Index Fund (FMDGX) and Vanguard S&P 500 ETF (VOO).
FMDGX is managed by Fidelity. It was launched on Jul 11, 2019. VOO is a passively managed fund by Vanguard that tracks the performance of the S&P 500 Index. It was launched on Sep 7, 2010.
Performance
FMDGX vs. VOO - Performance Comparison
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FMDGX vs. VOO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
FMDGX Fidelity Mid Cap Growth Index Fund | -9.61% | 8.60% | 22.03% | 25.79% | -26.67% | 12.67% | 34.84% | 4.63% |
VOO Vanguard S&P 500 ETF | -4.42% | 17.82% | 24.98% | 26.32% | -18.17% | 28.79% | 18.32% | 9.23% |
Returns By Period
In the year-to-date period, FMDGX achieves a -9.61% return, which is significantly lower than VOO's -4.42% return.
FMDGX
- 1D
- -1.09%
- 1M
- -9.53%
- YTD
- -9.61%
- 6M
- -12.95%
- 1Y
- 5.72%
- 3Y*
- 11.35%
- 5Y*
- 4.59%
- 10Y*
- —
VOO
- 1D
- 2.86%
- 1M
- -5.01%
- YTD
- -4.42%
- 6M
- -1.84%
- 1Y
- 17.67%
- 3Y*
- 18.27%
- 5Y*
- 11.75%
- 10Y*
- 14.05%
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FMDGX vs. VOO - Expense Ratio Comparison
FMDGX has a 0.05% expense ratio, which is higher than VOO's 0.03% 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%.
Return for Risk
FMDGX vs. VOO — Risk / Return Rank
FMDGX
VOO
FMDGX vs. VOO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Fidelity Mid Cap Growth Index Fund (FMDGX) and Vanguard S&P 500 ETF (VOO). 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.
| FMDGX | VOO | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.24 | 0.98 | -0.74 |
Sortino ratioReturn per unit of downside risk | 0.51 | 1.50 | -0.98 |
Omega ratioGain probability vs. loss probability | 1.07 | 1.23 | -0.16 |
Calmar ratioReturn relative to maximum drawdown | 0.22 | 1.53 | -1.32 |
Martin ratioReturn relative to average drawdown | 0.69 | 7.29 | -6.60 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| FMDGX | VOO | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.24 | 0.98 | -0.74 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.21 | 0.70 | -0.50 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | 0.78 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.36 | 0.83 | -0.47 |
Correlation
The correlation between FMDGX and VOO is 0.87, 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.
Dividends
FMDGX vs. VOO - Dividend Comparison
FMDGX's dividend yield for the trailing twelve months is around 2.05%, more than VOO's 1.19% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FMDGX Fidelity Mid Cap Growth Index Fund | 2.05% | 1.85% | 0.47% | 0.63% | 0.81% | 6.43% | 0.36% | 0.29% | 0.00% | 0.00% | 0.00% | 0.00% |
VOO Vanguard S&P 500 ETF | 1.19% | 1.13% | 1.24% | 1.46% | 1.69% | 1.25% | 1.54% | 1.88% | 2.06% | 1.78% | 2.02% | 2.10% |
Drawdowns
FMDGX vs. VOO - Drawdown Comparison
The maximum FMDGX drawdown since its inception was -38.59%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for FMDGX and VOO.
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Drawdown Indicators
| FMDGX | VOO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -38.59% | -33.99% | -4.60% |
Max Drawdown (1Y)Largest decline over 1 year | -14.75% | -11.98% | -2.77% |
Max Drawdown (5Y)Largest decline over 5 years | -38.59% | -24.52% | -14.07% |
Max Drawdown (10Y)Largest decline over 10 years | — | -33.99% | — |
Current DrawdownCurrent decline from peak | -14.75% | -6.29% | -8.46% |
Average DrawdownAverage peak-to-trough decline | -11.34% | -3.72% | -7.62% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.65% | 2.52% | +2.13% |
Volatility
FMDGX vs. VOO - Volatility Comparison
Fidelity Mid Cap Growth Index Fund (FMDGX) has a higher volatility of 5.67% compared to Vanguard S&P 500 ETF (VOO) at 5.29%. This indicates that FMDGX's price experiences larger fluctuations and is considered to be riskier than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| FMDGX | VOO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.67% | 5.29% | +0.38% |
Volatility (6M)Calculated over the trailing 6-month period | 12.66% | 9.44% | +3.22% |
Volatility (1Y)Calculated over the trailing 1-year period | 22.94% | 18.10% | +4.84% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 22.37% | 16.82% | +5.55% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 24.47% | 17.99% | +6.48% |