PRILX vs. MNRMX

Last updated Jun 25, 2026

PRILX (Parnassus Core Equity Institutional Shares) and MNRMX (Manor Investment Funds Manor Fund) are both Large Cap Blend Equities funds. Over the past 10 years, PRILX returned 14.05%/yr vs 12.09%/yr for MNRMX. Their correlation of 0.90 suggests significant overlap in exposure. PRILX charges 0.61%/yr vs 1.25%/yr for MNRMX.

Performance

PRILX vs. MNRMX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Parnassus Core Equity Institutional Shares (PRILX) and Manor Investment Funds Manor Fund (MNRMX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PRILX achieves a 5.53% return, which is significantly lower than MNRMX's 16.87% return. Over the past 10 years, PRILX has outperformed MNRMX with an annualized return of 14.05%, while MNRMX has yielded a comparatively lower 12.09% annualized return.

PRILX

• 1D: -1.45%
• 1M: 0.29%
• YTD: 5.53%
• 6M: 4.60%
• 1Y: 11.90%
• 3Y*: 15.65%
• 5Y*: 9.90%
• 10Y*: 14.05%

MNRMX

• 1D: -2.45%
• 1M: 4.32%
• YTD: 16.87%
• 6M: 14.86%
• 1Y: 34.46%
• 3Y*: 21.10%
• 5Y*: 11.93%
• 10Y*: 12.09%

*Multi-year figures are annualized to reflect compound growth (CAGR)

PRILX vs. MNRMX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PRILX Parnassus Core Equity Institutional Shares	5.53%	11.91%	18.81%	25.25%	-18.47%	27.86%	21.50%	30.95%	-0.06%	16.87%
MNRMX Manor Investment Funds Manor Fund	16.87%	20.62%	12.32%	13.77%	-10.73%	29.52%	5.94%	31.64%	-19.36%	21.55%

Correlation

The correlation between PRILX and MNRMX is 0.78, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.78
Correlation (3Y) Calculated over the trailing 3-year period	0.82
Correlation (5Y) Calculated over the trailing 5-year period	0.85
Correlation (10Y) Calculated over the trailing 10-year period	0.86
Correlation (All Time) Calculated using the full available price history since Apr 28, 2006	0.90

The correlation between PRILX and MNRMX shifts across timeframes, from 0.78 (1 year) to 0.90 (all time), reflecting how their relationship changes across market environments.

Return for Risk

PRILX vs. MNRMX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

PRILX

PRILX Risk / Return Rank: 17
PRILX Sharpe Ratio Rank: 18
PRILX Sortino Ratio Rank: 17
PRILX Omega Ratio Rank: 16
PRILX Calmar Ratio Rank: 14
PRILX Martin Ratio Rank: 19

MNRMX

MNRMX Risk / Return Rank: 86
MNRMX Sharpe Ratio Rank: 85
MNRMX Sortino Ratio Rank: 78
MNRMX Omega Ratio Rank: 76
MNRMX Calmar Ratio Rank: 95
MNRMX Martin Ratio Rank: 96

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

PRILX vs. MNRMX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Parnassus Core Equity Institutional Shares (PRILX) and Manor Investment Funds Manor Fund (MNRMX). 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.

	PRILX	MNRMX	Difference
Sharpe ratio: Return per unit of total volatility	1.08	2.41	-1.33
Sortino ratio: Return per unit of downside risk	1.56	3.18	-1.63
Omega ratio: Gain probability vs. loss probability	1.19	1.42	-0.23
Calmar ratio: Return relative to maximum drawdown	1.15	5.10	-3.95
Martin ratio: Return relative to average drawdown	4.47	21.11	-16.64

PRILX vs. MNRMX - Sharpe Ratio Comparison

The current PRILX Sharpe Ratio is 1.08, which is lower than the MNRMX Sharpe Ratio of 2.41. The chart below compares the historical Sharpe Ratios of PRILX and MNRMX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

PRILX vs. MNRMX - Drawdown Comparison

The maximum PRILX drawdown since its inception was -42.00%, smaller than the maximum MNRMX drawdown of -78.38%. Use the drawdown chart below to compare losses from any high point for PRILX and MNRMX.

Drawdown Indicators

	PRILX	MNRMX	Difference
Max Drawdown Largest peak-to-trough decline	-42.00%	-78.38%	+36.38%
Max Drawdown (1Y) Largest decline over 1 year	-11.61%	-7.20%	-4.41%
Max Drawdown (3Y) Largest decline over 3 years	-16.28%	-78.38%	+62.10%
Max Drawdown (5Y) Largest decline over 5 years	-26.18%	-78.38%	+52.20%
Max Drawdown (10Y) Largest decline over 10 years	-30.02%	-78.38%	+48.36%
Current Drawdown Current decline from peak	-2.29%	-63.57%	+61.28%
Average Drawdown Average peak-to-trough decline	-4.64%	-12.66%	+8.02%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.98%	1.74%	+1.24%

Volatility

PRILX vs. MNRMX - Volatility Comparison

The current volatility for Parnassus Core Equity Institutional Shares (PRILX) is 4.86%, while Manor Investment Funds Manor Fund (MNRMX) has a volatility of 5.89%. This indicates that PRILX experiences smaller price fluctuations and is considered to be less risky than MNRMX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PRILX	MNRMX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.86%	5.89%	-1.03%
Volatility (6M) Calculated over the trailing 6-month period	10.06%	12.39%	-2.33%
Volatility (1Y) Calculated over the trailing 1-year period	12.44%	15.26%	-2.82%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.35%	127.25%	-110.90%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.26%	91.14%	-73.88%

PRILX vs. MNRMX - Expense Ratio Comparison

PRILX has a 0.61% expense ratio, which is lower than MNRMX's 1.25% expense ratio.

Dividends

PRILX vs. MNRMX - Dividend Comparison

PRILX's dividend yield for the trailing twelve months is around 18.12%, more than MNRMX's 7.10% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MNRMX Manor Investment Funds Manor Fund	7.10%	8.30%	0.00%	1.00%	4.66%	3.46%	1.77%	1.14%	4.92%	1.03%	10.51%	5.71%
PRILX Parnassus Core Equity Institutional Shares	18.12%	19.16%	10.17%	6.18%	10.34%	7.94%	6.04%	8.23%	9.89%	7.37%	3.99%	9.84%

Frequently Asked Questions

Can I hold both PRILX and MNRMX in my portfolio?

PRILX and MNRMX have a correlation of 0.78, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PRILX or MNRMX?

MNRMX has higher volatility (5.89%) compared to PRILX (4.86%). In terms of maximum drawdown, PRILX dropped -42.00% vs MNRMX's -78.38%.

Which has better risk-adjusted returns?

MNRMX currently has the higher Sharpe Ratio (2.41 vs 1.08), 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.