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PARMX vs. NOSIX
Performance
Risk-Adjusted Performance
Dividends
Drawdowns
Volatility

Correlation

The correlation between PARMX and NOSIX is 0.90, 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.


-0.50.00.51.0
Correlation: 0.9

Performance

PARMX vs. NOSIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Parnassus Mid Cap Fund (PARMX) and Northern Stock Index Fund (NOSIX). The values are adjusted to include any dividend payments, if applicable.

100.00%200.00%300.00%400.00%500.00%NovemberDecember2025FebruaryMarchApril
171.69%
460.14%
PARMX
NOSIX

Key characteristics

Sharpe Ratio

PARMX:

-0.31

NOSIX:

0.46

Sortino Ratio

PARMX:

-0.31

NOSIX:

0.77

Omega Ratio

PARMX:

0.96

NOSIX:

1.11

Calmar Ratio

PARMX:

-0.20

NOSIX:

0.47

Martin Ratio

PARMX:

-0.60

NOSIX:

1.89

Ulcer Index

PARMX:

10.15%

NOSIX:

4.74%

Daily Std Dev

PARMX:

19.48%

NOSIX:

19.48%

Max Drawdown

PARMX:

-51.40%

NOSIX:

-55.42%

Current Drawdown

PARMX:

-22.67%

NOSIX:

-10.00%

Returns By Period

In the year-to-date period, PARMX achieves a -4.54% return, which is significantly higher than NOSIX's -5.64% return. Over the past 10 years, PARMX has underperformed NOSIX with an annualized return of 3.01%, while NOSIX has yielded a comparatively higher 9.92% annualized return.


PARMX

YTD

-4.54%

1M

-1.33%

6M

-16.17%

1Y

-5.69%

5Y*

3.32%

10Y*

3.01%

NOSIX

YTD

-5.64%

1M

-0.85%

6M

-5.71%

1Y

8.36%

5Y*

12.38%

10Y*

9.92%

*Annualized

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PARMX vs. NOSIX - Expense Ratio Comparison

PARMX has a 0.96% expense ratio, which is higher than NOSIX's 0.05% expense ratio.


Expense ratio chart for PARMX: current value is 0.96%, compared with the broader market range of 0.00% to 2.12%.0.50%1.00%1.50%2.00%
PARMX: 0.96%
Expense ratio chart for NOSIX: current value is 0.05%, compared with the broader market range of 0.00% to 2.12%.0.50%1.00%1.50%2.00%
NOSIX: 0.05%

Risk-Adjusted Performance

PARMX vs. NOSIX — Risk-Adjusted Performance Rank

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

PARMX
The Risk-Adjusted Performance Rank of PARMX is 1010
Overall Rank
The Sharpe Ratio Rank of PARMX is 99
Sharpe Ratio Rank
The Sortino Ratio Rank of PARMX is 88
Sortino Ratio Rank
The Omega Ratio Rank of PARMX is 99
Omega Ratio Rank
The Calmar Ratio Rank of PARMX is 1010
Calmar Ratio Rank
The Martin Ratio Rank of PARMX is 1111
Martin Ratio Rank

NOSIX
The Risk-Adjusted Performance Rank of NOSIX is 5757
Overall Rank
The Sharpe Ratio Rank of NOSIX is 5454
Sharpe Ratio Rank
The Sortino Ratio Rank of NOSIX is 5555
Sortino Ratio Rank
The Omega Ratio Rank of NOSIX is 5757
Omega Ratio Rank
The Calmar Ratio Rank of NOSIX is 6363
Calmar Ratio Rank
The Martin Ratio Rank of NOSIX is 5757
Martin Ratio Rank
The risk-adjusted ranks indicate the investment's position relative to the market. A rank closer to 100 signifies top-performing investments, while a rank closer to 0 might suggest underperformance, based on the selected ratio. The values are calculated based on the past 12 months of returns.

PARMX vs. NOSIX - Risk-Adjusted Performance Comparison

This table presents a comparison of risk-adjusted performance metrics for Parnassus Mid Cap Fund (PARMX) and Northern Stock Index Fund (NOSIX). 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.


The chart of Sharpe ratio for PARMX, currently valued at -0.31, compared to the broader market-1.000.001.002.003.00
PARMX: -0.31
NOSIX: 0.46
The chart of Sortino ratio for PARMX, currently valued at -0.31, compared to the broader market-2.000.002.004.006.008.00
PARMX: -0.31
NOSIX: 0.77
The chart of Omega ratio for PARMX, currently valued at 0.96, compared to the broader market0.501.001.502.002.503.00
PARMX: 0.96
NOSIX: 1.11
The chart of Calmar ratio for PARMX, currently valued at -0.20, compared to the broader market0.002.004.006.008.0010.00
PARMX: -0.20
NOSIX: 0.47
The chart of Martin ratio for PARMX, currently valued at -0.60, compared to the broader market0.0010.0020.0030.0040.00
PARMX: -0.60
NOSIX: 1.89

The current PARMX Sharpe Ratio is -0.31, which is lower than the NOSIX Sharpe Ratio of 0.46. The chart below compares the historical Sharpe Ratios of PARMX and NOSIX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.


Rolling 12-month Sharpe Ratio-1.000.001.002.003.00NovemberDecember2025FebruaryMarchApril
-0.31
0.46
PARMX
NOSIX

Dividends

PARMX vs. NOSIX - Dividend Comparison

PARMX's dividend yield for the trailing twelve months is around 0.22%, less than NOSIX's 1.37% yield.


TTM20242023202220212020201920182017201620152014
PARMX
Parnassus Mid Cap Fund
0.22%0.21%0.37%0.01%0.03%0.19%0.51%0.76%1.49%0.38%0.70%0.72%
NOSIX
Northern Stock Index Fund
1.37%1.27%1.56%1.68%1.15%1.53%1.70%2.09%1.73%2.06%1.99%1.77%

Drawdowns

PARMX vs. NOSIX - Drawdown Comparison

The maximum PARMX drawdown since its inception was -51.40%, smaller than the maximum NOSIX drawdown of -55.42%. Use the drawdown chart below to compare losses from any high point for PARMX and NOSIX. For additional features, visit the drawdowns tool.


-35.00%-30.00%-25.00%-20.00%-15.00%-10.00%-5.00%0.00%NovemberDecember2025FebruaryMarchApril
-22.67%
-10.00%
PARMX
NOSIX

Volatility

PARMX vs. NOSIX - Volatility Comparison

The current volatility for Parnassus Mid Cap Fund (PARMX) is 13.32%, while Northern Stock Index Fund (NOSIX) has a volatility of 14.20%. This indicates that PARMX experiences smaller price fluctuations and is considered to be less risky than NOSIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.


2.00%4.00%6.00%8.00%10.00%12.00%14.00%NovemberDecember2025FebruaryMarchApril
13.32%
14.20%
PARMX
NOSIX