FXAIX vs. PRSIX
FXAIX (Fidelity 500 Index Fund) and PRSIX (T. Rowe Price Spectrum Conservative Allocation Fund) are both mutual funds - FXAIX is a S&P 500 fund tracking the S&P 500 Index, while PRSIX is a Diversified Portfolio fund managed by T. Rowe Price. Over the past 10 years, FXAIX returned 15.44%/yr vs 6.84%/yr for PRSIX. Their correlation of 0.91 suggests significant overlap in exposure. FXAIX charges 0.02%/yr vs 0.36%/yr for PRSIX.
Performance
FXAIX vs. PRSIX - Performance Comparison
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Returns By Period
In the year-to-date period, FXAIX achieves a 8.59% return, which is significantly higher than PRSIX's 5.01% return. Over the past 10 years, FXAIX has outperformed PRSIX with an annualized return of 15.44%, while PRSIX has yielded a comparatively lower 6.84% annualized return.
FXAIX
- 1D
- 1.76%
- 1M
- -0.09%
- YTD
- 8.59%
- 6M
- 8.94%
- 1Y
- 25.18%
- 3Y*
- 21.06%
- 5Y*
- 13.34%
- 10Y*
- 15.44%
PRSIX
- 1D
- 1.14%
- 1M
- 0.90%
- YTD
- 5.01%
- 6M
- 5.51%
- 1Y
- 13.22%
- 3Y*
- 10.58%
- 5Y*
- 4.58%
- 10Y*
- 6.84%
FXAIX vs. PRSIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
FXAIX Fidelity 500 Index Fund | 8.59% | 17.84% | 25.01% | 26.29% | -18.14% | 28.71% | 18.42% | 31.48% | -4.43% | 21.82% |
PRSIX T. Rowe Price Spectrum Conservative Allocation Fund | 5.01% | 11.91% | 8.53% | 11.97% | -13.65% | 7.07% | 11.70% | 16.78% | -3.01% | 12.28% |
Correlation
The correlation between FXAIX and PRSIX is 0.91, 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 | 0.91 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.89 |
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 FXAIX and PRSIX has been stable across timeframes, ranging from 0.89 to 0.91 - a consistent structural relationship.
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Return for Risk
FXAIX vs. PRSIX — Risk / Return Rank
FXAIX
PRSIX
FXAIX vs. PRSIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Fidelity 500 Index Fund (FXAIX) and T. Rowe Price Spectrum Conservative Allocation Fund (PRSIX). 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.
| FXAIX | PRSIX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.12 | ||
| Sortino ratioReturn per unit of downside risk | -0.30 | ||
| Omega ratioGain probability vs. loss probability | 1.36 | 1.41 | -0.06 |
| Calmar ratioReturn relative to maximum drawdown | 2.74 | 2.56 | +0.18 |
| Martin ratioReturn relative to average drawdown | 12.46 | 11.28 | +1.18 |
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Drawdowns
FXAIX vs. PRSIX - Drawdown Comparison
The maximum FXAIX drawdown since its inception was -33.79%, which is greater than PRSIX's maximum drawdown of -30.00%. Use the drawdown chart below to compare losses from any high point for FXAIX and PRSIX.
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Drawdown Indicators
| FXAIX | PRSIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -33.79% | -30.00% | -3.79% |
Max Drawdown (1Y)Largest decline over 1 year | -8.89% | -5.02% | -3.87% |
Max Drawdown (3Y)Largest decline over 3 years | -18.76% | -6.80% | -11.96% |
Max Drawdown (5Y)Largest decline over 5 years | -24.50% | -18.69% | -5.81% |
Max Drawdown (10Y)Largest decline over 10 years | -33.79% | -19.28% | -14.51% |
Current DrawdownCurrent decline from peak | -2.79% | -0.74% | -2.05% |
Average DrawdownAverage peak-to-trough decline | -3.79% | -2.82% | -0.97% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.95% | 1.14% | +0.81% |
Volatility
FXAIX vs. PRSIX - Volatility Comparison
Fidelity 500 Index Fund (FXAIX) has a higher volatility of 4.44% compared to T. Rowe Price Spectrum Conservative Allocation Fund (PRSIX) at 2.52%. This indicates that FXAIX's price experiences larger fluctuations and is considered to be riskier than PRSIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| FXAIX | PRSIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.44% | 2.52% | +1.92% |
Volatility (6M)Calculated over the trailing 6-month period | 9.70% | 5.24% | +4.46% |
Volatility (1Y)Calculated over the trailing 1-year period | 12.37% | 6.14% | +6.23% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.99% | 7.10% | +9.89% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.10% | 7.42% | +10.68% |
FXAIX vs. PRSIX - Expense Ratio Comparison
FXAIX has a 0.02% expense ratio, which is lower than PRSIX's 0.36% expense ratio.
Dividends
FXAIX vs. PRSIX - Dividend Comparison
FXAIX's dividend yield for the trailing twelve months is around 1.06%, less than PRSIX's 6.89% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
FXAIX Fidelity 500 Index Fund | 1.06% | 1.11% | 1.25% | 1.45% | 1.69% | 1.22% | 1.60% | 2.06% | 2.72% | 1.97% | 2.52% | 2.83% |
PRSIX T. Rowe Price Spectrum Conservative Allocation Fund | 6.89% | 7.12% | 3.92% | 3.78% | 5.63% | 7.63% | 3.77% | 5.11% | 5.27% | 3.43% | 2.22% | 4.56% |
Frequently Asked Questions
With a correlation of 0.91, FXAIX and PRSIX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
FXAIX has higher volatility (4.44%) compared to PRSIX (2.52%). In terms of maximum drawdown, FXAIX dropped -33.79% vs PRSIX's -30.00%.
PRSIX currently has the higher Sharpe Ratio (2.09 vs 1.97), 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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