PRGFX vs. FXAIX
PRGFX (T. Rowe Price Growth Stock Fund) and FXAIX (Fidelity 500 Index Fund) are both mutual funds - PRGFX is a Large Cap Growth Equities fund managed by T. Rowe Price, while FXAIX is a S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, PRGFX returned 15.92%/yr vs 15.58%/yr for FXAIX. Their correlation of 0.91 suggests significant overlap in exposure. PRGFX charges 0.63%/yr vs 0.02%/yr for FXAIX.
Performance
PRGFX vs. FXAIX - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, PRGFX achieves a 3.52% return, which is significantly lower than FXAIX's 10.19% return. Both investments have delivered pretty close results over the past 10 years, with PRGFX having a 15.92% annualized return and FXAIX not far behind at 15.58%.
PRGFX
- 1D
- 1.71%
- 1M
- -0.72%
- YTD
- 3.52%
- 6M
- 2.95%
- 1Y
- 19.83%
- 3Y*
- 22.66%
- 5Y*
- 8.90%
- 10Y*
- 15.92%
FXAIX
- 1D
- 1.09%
- 1M
- 0.47%
- YTD
- 10.19%
- 6M
- 9.68%
- 1Y
- 27.18%
- 3Y*
- 20.98%
- 5Y*
- 14.10%
- 10Y*
- 15.58%
PRGFX vs. FXAIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
PRGFX T. Rowe Price Growth Stock Fund | 3.52% | 15.64% | 38.36% | 45.33% | -40.12% | 19.86% | 36.92% | 30.83% | -1.04% | 33.57% |
FXAIX Fidelity 500 Index Fund | 10.19% | 17.84% | 25.01% | 26.29% | -18.14% | 28.71% | 18.42% | 31.48% | -4.43% | 21.82% |
Correlation
The correlation between PRGFX and FXAIX is 0.89, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.89 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.88 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.90 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.90 |
Correlation (All Time) Calculated using the full available price history since May 4, 2011 | 0.91 |
The correlation between PRGFX and FXAIX has been stable across timeframes, ranging from 0.88 to 0.91 - a consistent structural relationship.
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
PRGFX vs. FXAIX — Risk / Return Rank
PRGFX
FXAIX
PRGFX vs. FXAIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for T. Rowe Price Growth Stock Fund (PRGFX) 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.
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.
| PRGFX | FXAIX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.02 | ||
| Sortino ratioReturn per unit of downside risk | -1.30 | ||
| Omega ratioGain probability vs. loss probability | 1.21 | 1.39 | -0.19 |
| Calmar ratioReturn relative to maximum drawdown | 1.07 | 3.04 | -1.97 |
| Martin ratioReturn relative to average drawdown | 3.36 | 13.75 | -10.39 |
Loading charts...
Drawdowns
PRGFX vs. FXAIX - Drawdown Comparison
The maximum PRGFX drawdown since its inception was -54.01%, which is greater than FXAIX's maximum drawdown of -33.79%. Use the drawdown chart below to compare losses from any high point for PRGFX and FXAIX.
Loading charts...
Drawdown Indicators
| PRGFX | FXAIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -54.01% | -33.79% | -20.22% |
Max Drawdown (1Y)Largest decline over 1 year | -18.02% | -8.89% | -9.13% |
Max Drawdown (3Y)Largest decline over 3 years | -22.69% | -18.76% | -3.93% |
Max Drawdown (5Y)Largest decline over 5 years | -46.44% | -24.50% | -21.94% |
Max Drawdown (10Y)Largest decline over 10 years | -46.44% | -33.79% | -12.65% |
Current DrawdownCurrent decline from peak | -3.65% | -1.36% | -2.29% |
Average DrawdownAverage peak-to-trough decline | -10.67% | -3.79% | -6.88% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.72% | 1.96% | +3.76% |
Volatility
PRGFX vs. FXAIX - Volatility Comparison
T. Rowe Price Growth Stock Fund (PRGFX) has a higher volatility of 6.30% compared to Fidelity 500 Index Fund (FXAIX) at 4.77%. This indicates that PRGFX'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.
Loading charts...
Volatility by Period
| PRGFX | FXAIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.30% | 4.77% | +1.53% |
Volatility (6M)Calculated over the trailing 6-month period | 13.08% | 9.91% | +3.17% |
Volatility (1Y)Calculated over the trailing 1-year period | 16.69% | 12.47% | +4.22% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 23.18% | 17.01% | +6.17% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 22.16% | 18.11% | +4.05% |
PRGFX vs. FXAIX - Expense Ratio Comparison
PRGFX has a 0.63% expense ratio, which is higher than FXAIX's 0.02% expense ratio.
Dividends
PRGFX vs. FXAIX - Dividend Comparison
PRGFX's dividend yield for the trailing twelve months is around 13.12%, more than FXAIX's 1.04% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FXAIX Fidelity 500 Index Fund | 1.04% | 1.11% | 1.25% | 1.45% | 1.69% | 1.22% | 1.60% | 2.06% | 2.72% | 1.97% | 2.52% | 2.83% |
PRGFX T. Rowe Price Growth Stock Fund | 13.12% | 13.58% | 13.26% | 3.34% | 3.55% | 9.34% | 3.51% | 1.81% | 9.09% | 13.57% | 2.22% | 7.23% |
Frequently Asked Questions
PRGFX and FXAIX have a correlation of 0.89, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
PRGFX has higher volatility (6.30%) compared to FXAIX (4.77%). In terms of maximum drawdown, PRGFX dropped -54.01% vs FXAIX's -33.79%.
FXAIX currently has the higher Sharpe Ratio (2.17 vs 1.15), 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.
Find the right allocation for PRGFX and FXAIX
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer