RPTIX vs. FMDGX
RPTIX (T. Rowe Price Mid-Cap Growth Fund Class I) and FMDGX (Fidelity Mid Cap Growth Index Fund) are both Mid Cap Growth Equities funds - RPTIX tracks the Russell MidCap Growth Index while FMDGX tracks the Russell Midcap Growth Index. Both are passively managed. Over the past 5 years, RPTIX returned 2.31%/yr vs 4.43%/yr for FMDGX. Their correlation of 0.93 means they have usually moved in the same direction. RPTIX charges 0.63%/yr vs 0.05%/yr for FMDGX.
Performance
RPTIX vs. FMDGX - Performance Comparison
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Returns By Period
In the year-to-date period, RPTIX achieves a 2.82% return, which is significantly higher than FMDGX's 0.60% return.
RPTIX
- 1D
- 0.49%
- 1M
- -1.63%
- 6M
- 2.49%
- YTD
- 2.82%
- 1Y
- 6.07%
- 3Y*
- 6.36%
- 5Y*
- 2.31%
- 10Y*
- 9.68%
- ALL TIME*
- 9.96%
FMDGX
- 1D
- 2.29%
- 1M
- -3.87%
- 6M
- 1.50%
- YTD
- 0.60%
- 1Y
- -0.77%
- 3Y*
- 11.99%
- 5Y*
- 4.43%
- 10Y*
- —
- ALL TIME*
- 10.00%
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 |
RPTIX vs. FMDGX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
RPTIX T. Rowe Price Mid-Cap Growth Fund Class I | 2.82% | 3.79% | 9.48% | 20.42% | -22.39% | 15.07% | 24.31% | 4.65% |
FMDGX Fidelity Mid Cap Growth Index Fund | 0.60% | 8.60% | 22.03% | 25.79% | -26.67% | 12.67% | 34.84% | 4.63% |
Correlation
The correlation between RPTIX and FMDGX is 0.87, 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. | 0.87 |
Correlation (3Y) Balances recent behavior with more history. | 0.88 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.93 |
Correlation (All Time) Calculated using the full available price history since Jul 17, 2019 | 0.93 |
The correlation between RPTIX and FMDGX has been stable across timeframes, ranging from 0.87 to 0.93 - a consistent structural relationship.
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Return for Risk
RPTIX vs. FMDGX — Risk / Return Rank
RPTIX
FMDGX
RPTIX vs. FMDGX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price Mid-Cap Growth Fund Class I (RPTIX) and Fidelity Mid Cap Growth Index Fund (FMDGX). 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.
| RPTIX | FMDGX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.47 | ||
| Sortino ratioReturn per unit of downside risk | +0.66 | ||
| Omega ratioGain probability vs. loss probability | 1.06 | 0.99 | +0.07 |
| Calmar ratioReturn relative to maximum drawdown | 0.41 | -0.21 | +0.61 |
| Martin ratioReturn relative to average drawdown | 1.36 | -0.57 | +1.94 |
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Drawdowns
RPTIX vs. FMDGX - Drawdown Comparison
The maximum RPTIX drawdown since its inception was -35.94%, smaller than the maximum FMDGX drawdown of -38.59%. Use the drawdown chart below to compare losses from any high point for RPTIX and FMDGX.
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Drawdown Indicators
| RPTIX | FMDGX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -35.94% | -38.59% | +2.65% |
Max Drawdown (1Y)Largest decline over 1 year | -10.17% | -14.75% | +4.58% |
Max Drawdown (3Y)Largest decline over 3 years | -23.02% | -25.30% | +2.28% |
Max Drawdown (5Y)Largest decline over 5 years | -31.99% | -38.59% | +6.60% |
Max Drawdown (10Y)Largest decline over 10 years | -35.94% | — | — |
Current DrawdownCurrent decline from peak | -2.01% | -6.20% | +4.19% |
Average DrawdownAverage peak-to-trough decline | -6.72% | -11.03% | +4.31% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.02% | 5.29% | -2.27% |
Volatility
RPTIX vs. FMDGX - Volatility Comparison
The current volatility for T. Rowe Price Mid-Cap Growth Fund Class I (RPTIX) is 2.50%, while Fidelity Mid Cap Growth Index Fund (FMDGX) has a volatility of 5.15%. This indicates that RPTIX experiences smaller price fluctuations and is considered to be less risky than FMDGX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| RPTIX | FMDGX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 2.50% | 5.15% | -2.65% |
Volatility (6M)Calculated over the trailing 6-month period | 10.51% | 14.00% | -3.49% |
Volatility (1Y)Calculated over the trailing 1-year period | 13.79% | 17.61% | -3.82% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 18.59% | 22.54% | -3.95% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.66% | 24.23% | -5.57% |
RPTIX vs. FMDGX - Expense Ratio Comparison
RPTIX has a 0.63% expense ratio, which is higher than FMDGX's 0.05% expense ratio.
Dividends
RPTIX vs. FMDGX - Dividend Comparison
RPTIX's dividend yield for the trailing twelve months is around 6.27%, more than FMDGX's 1.84% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
FMDGX Fidelity Mid Cap Growth Index Fund | 1.84% | 1.85% | 0.47% | 0.63% | 0.81% | 6.43% | 0.36% | 0.29% | 0.00% | 0.00% | 0.00% |
RPTIX T. Rowe Price Mid-Cap Growth Fund Class I | 6.27% | 6.45% | 10.24% | 6.48% | 2.59% | 10.67% | 4.54% | 5.41% | 12.28% | 8.18% | 3.60% |
Frequently Asked Questions
RPTIX and FMDGX have a correlation of 0.87, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
FMDGX has higher volatility (5.15%) compared to RPTIX (2.50%). In terms of maximum drawdown, RPTIX dropped -35.94% vs FMDGX's -38.59%.
RPTIX currently has the higher Sharpe Ratio (0.30 vs -0.17), 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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