FMDGX vs. MXMGX
FMDGX (Fidelity Mid Cap Growth Index Fund) and MXMGX (Great-West T. Rowe Price Mid Cap Growth Fund) are both Mid Cap Growth Equities funds. Over the past 5 years, FMDGX returned 4.37%/yr vs 1.67%/yr for MXMGX. Their correlation of 0.87 means they have usually moved in the same direction. FMDGX charges 0.05%/yr vs 1.02%/yr for MXMGX.
Performance
FMDGX vs. MXMGX - Performance Comparison
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Returns By Period
In the year-to-date period, FMDGX achieves a 0.31% return, which is significantly lower than MXMGX's 2.07% return.
FMDGX
- 1D
- -0.28%
- 1M
- -4.14%
- 6M
- 0.83%
- YTD
- 0.31%
- 1Y
- -1.05%
- 3Y*
- 12.08%
- 5Y*
- 4.37%
- 10Y*
- —
- ALL TIME*
- 9.95%
MXMGX
- 1D
- -0.31%
- 1M
- -2.04%
- 6M
- 1.09%
- YTD
- 2.07%
- 1Y
- 3.63%
- 3Y*
- 5.59%
- 5Y*
- 1.67%
- 10Y*
- 8.76%
- ALL TIME*
- 5.88%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $0.00 | $0.00 | $0.00 |
FMDGX vs. MXMGX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
FMDGX Fidelity Mid Cap Growth Index Fund | 0.31% | 8.60% | 22.03% | 25.79% | -26.67% | 12.67% | 34.84% | 4.63% |
MXMGX Great-West T. Rowe Price Mid Cap Growth Fund | 2.07% | 2.99% | 9.02% | 19.61% | -22.82% | 15.25% | 23.65% | 4.53% |
Correlation
The correlation between FMDGX and MXMGX is 0.85, meaning they have usually moved in the same direction, including during past declines.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.85 |
Correlation (3Y) Balances recent behavior with more history. | 0.80 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.87 |
Correlation (All Time) Calculated using the full available price history since Jul 17, 2019 | 0.87 |
The correlation between FMDGX and MXMGX has been stable across timeframes, ranging from 0.80 to 0.87 - a consistent structural relationship.
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Return for Risk
FMDGX vs. MXMGX — Risk / Return Rank
FMDGX
MXMGX
FMDGX vs. MXMGX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Fidelity Mid Cap Growth Index Fund (FMDGX) and Great-West T. Rowe Price Mid Cap Growth Fund (MXMGX). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| FMDGX | MXMGX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.43 | ||
| Sortino ratioReturn per unit of downside risk | -0.59 | ||
| Omega ratioGain probability vs. loss probability | 0.99 | 1.06 | -0.07 |
| Calmar ratioReturn relative to maximum drawdown | -0.18 | 0.36 | -0.54 |
| Martin ratioReturn relative to average drawdown | -0.51 | 1.19 | -1.70 |
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Drawdowns
FMDGX vs. MXMGX - Drawdown Comparison
The maximum FMDGX drawdown since its inception was -38.59%, smaller than the maximum MXMGX drawdown of -60.97%. Use the drawdown chart below to compare losses from any high point for FMDGX and MXMGX.
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Drawdown Indicators
| FMDGX | MXMGX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -38.59% | -60.97% | +22.38% |
Max Drawdown (1Y)Largest decline over 1 year | -14.75% | -10.29% | -4.46% |
Max Drawdown (3Y)Largest decline over 3 years | -25.30% | -23.17% | -2.13% |
Max Drawdown (5Y)Largest decline over 5 years | -38.59% | -32.33% | -6.26% |
Max Drawdown (10Y)Largest decline over 10 years | — | -35.88% | — |
Current DrawdownCurrent decline from peak | -6.46% | -2.46% | -4.00% |
Average DrawdownAverage peak-to-trough decline | -11.02% | -11.74% | +0.72% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.30% | 3.09% | +2.21% |
Volatility
FMDGX vs. MXMGX - Volatility Comparison
Fidelity Mid Cap Growth Index Fund (FMDGX) has a higher volatility of 5.09% compared to Great-West T. Rowe Price Mid Cap Growth Fund (MXMGX) at 2.53%. This indicates that FMDGX's price experiences larger fluctuations and is considered to be riskier than MXMGX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| FMDGX | MXMGX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.09% | 2.53% | +2.56% |
Volatility (6M)Calculated over the trailing 6-month period | 13.99% | 10.52% | +3.47% |
Volatility (1Y)Calculated over the trailing 1-year period | 17.60% | 13.59% | +4.01% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 22.53% | 19.04% | +3.49% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 24.22% | 18.89% | +5.33% |
FMDGX vs. MXMGX - Expense Ratio Comparison
FMDGX has a 0.05% expense ratio, which is lower than MXMGX's 1.02% expense ratio.
Dividends
FMDGX vs. MXMGX - Dividend Comparison
FMDGX's dividend yield for the trailing twelve months is around 1.85%, more than MXMGX's 1.65% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
FMDGX Fidelity Mid Cap Growth Index Fund | 1.85% | 1.85% | 0.47% | 0.63% | 0.81% | 6.43% | 0.36% | 0.29% | 0.00% | 0.00% |
MXMGX Great-West T. Rowe Price Mid Cap Growth Fund | 1.65% | 1.68% | 3.66% | 2.39% | 2.66% | 4.92% | 2.74% | 2.19% | 6.13% | 4.53% |
Frequently Asked Questions
FMDGX and MXMGX have a correlation of 0.85, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
FMDGX has higher volatility (5.09%) compared to MXMGX (2.53%). In terms of maximum drawdown, FMDGX dropped -38.59% vs MXMGX's -60.97%.
MXMGX currently has the higher Sharpe Ratio (0.27 vs -0.15), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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