PRILX vs. SPY
Compare and contrast key facts about Parnassus Core Equity Institutional Shares (PRILX) and State Street SPDR S&P 500 ETF (SPY).
PRILX is managed by Parnassus. SPY is a passively managed fund by State Street that tracks the performance of the S&P 500 Index. It was launched on Jan 22, 1993.
Performance
PRILX vs. SPY - Performance Comparison
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PRILX vs. SPY - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
PRILX Parnassus Core Equity Institutional Shares | -8.59% | 11.91% | 18.81% | 25.25% | -18.47% | 27.86% | 21.50% | 30.95% | -0.06% | 16.87% |
SPY State Street SPDR S&P 500 ETF | -4.37% | 17.72% | 24.89% | 26.18% | -18.18% | 28.73% | 18.33% | 31.22% | -4.57% | 21.71% |
Returns By Period
In the year-to-date period, PRILX achieves a -8.59% return, which is significantly lower than SPY's -4.37% return. Over the past 10 years, PRILX has underperformed SPY with an annualized return of 12.21%, while SPY has yielded a comparatively higher 13.98% annualized return.
PRILX
- 1D
- 0.02%
- 1M
- -8.57%
- YTD
- -8.59%
- 6M
- -7.05%
- 1Y
- 4.82%
- 3Y*
- 12.26%
- 5Y*
- 8.16%
- 10Y*
- 12.21%
SPY
- 1D
- 2.91%
- 1M
- -4.94%
- YTD
- -4.37%
- 6M
- -1.82%
- 1Y
- 17.59%
- 3Y*
- 18.19%
- 5Y*
- 11.69%
- 10Y*
- 13.98%
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PRILX vs. SPY - Expense Ratio Comparison
PRILX has a 0.61% expense ratio, which is higher than SPY's 0.09% expense ratio.
Return for Risk
PRILX vs. SPY — Risk / Return Rank
PRILX
SPY
PRILX vs. SPY - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Parnassus Core Equity Institutional Shares (PRILX) and State Street SPDR S&P 500 ETF (SPY). 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.
| PRILX | SPY | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.32 | 0.93 | -0.61 |
Sortino ratioReturn per unit of downside risk | 0.57 | 1.45 | -0.88 |
Omega ratioGain probability vs. loss probability | 1.08 | 1.22 | -0.14 |
Calmar ratioReturn relative to maximum drawdown | 0.25 | 1.53 | -1.27 |
Martin ratioReturn relative to average drawdown | 0.93 | 7.30 | -6.37 |
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
| PRILX | SPY | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.32 | 0.93 | -0.61 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.51 | 0.69 | -0.18 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.71 | 0.78 | -0.07 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.62 | 0.56 | +0.06 |
Correlation
The correlation between PRILX and SPY is 0.95, 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
PRILX vs. SPY - Dividend Comparison
PRILX's dividend yield for the trailing twelve months is around 20.85%, more than SPY's 1.14% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
PRILX Parnassus Core Equity Institutional Shares | 20.85% | 19.16% | 10.17% | 6.18% | 10.34% | 7.94% | 6.04% | 8.23% | 9.89% | 7.37% | 3.99% | 9.84% |
SPY State Street SPDR S&P 500 ETF | 1.14% | 1.07% | 1.21% | 1.40% | 1.65% | 1.20% | 1.52% | 1.75% | 2.04% | 1.80% | 2.03% | 2.06% |
Drawdowns
PRILX vs. SPY - Drawdown Comparison
The maximum PRILX drawdown since its inception was -42.00%, smaller than the maximum SPY drawdown of -55.19%. Use the drawdown chart below to compare losses from any high point for PRILX and SPY.
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Drawdown Indicators
| PRILX | SPY | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -42.00% | -55.19% | +13.19% |
Max Drawdown (1Y)Largest decline over 1 year | -11.61% | -12.05% | +0.44% |
Max Drawdown (5Y)Largest decline over 5 years | -26.18% | -24.50% | -1.68% |
Max Drawdown (10Y)Largest decline over 10 years | -30.02% | -33.72% | +3.70% |
Current DrawdownCurrent decline from peak | -11.59% | -6.24% | -5.35% |
Average DrawdownAverage peak-to-trough decline | -4.68% | -9.09% | +4.41% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.16% | 2.52% | +0.64% |
Volatility
PRILX vs. SPY - Volatility Comparison
The current volatility for Parnassus Core Equity Institutional Shares (PRILX) is 4.08%, while State Street SPDR S&P 500 ETF (SPY) has a volatility of 5.31%. This indicates that PRILX experiences smaller price fluctuations and is considered to be less risky than SPY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| PRILX | SPY | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.08% | 5.31% | -1.23% |
Volatility (6M)Calculated over the trailing 6-month period | 8.56% | 9.47% | -0.91% |
Volatility (1Y)Calculated over the trailing 1-year period | 16.67% | 19.05% | -2.38% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.18% | 17.06% | -0.88% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 17.19% | 17.92% | -0.73% |