PRBLX vs. AKREX

Last updated Apr 2, 2026

Compare and contrast key facts about Parnassus Core Equity Fund (PRBLX) and Akre Focus Fund Retail Class (AKREX).

PRBLX is managed by Parnassus. It was launched on Aug 31, 1992. AKREX is managed by Akre. It was launched on Aug 31, 2009.

Performance

PRBLX vs. AKREX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Parnassus Core Equity Fund (PRBLX) and Akre Focus Fund Retail Class (AKREX). The values are adjusted to include any dividend payments, if applicable.

PRBLX vs. AKREX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PRBLX Parnassus Core Equity Fund	-6.17%	11.67%	18.58%	24.97%	-18.64%	27.59%	21.21%	30.68%	-0.30%	16.63%
AKREX Akre Focus Fund Retail Class	0.00%	1.72%	17.97%	28.39%	-22.95%	24.23%	20.37%	35.05%	5.25%	30.49%

Returns By Period

PRBLX

• 1D: 2.68%
• 1M: -6.10%
• YTD: -6.17%
• 6M: -5.13%
• 1Y: 6.94%
• 3Y*: 13.02%
• 5Y*: 8.22%
• 10Y*: 12.27%

AKREX

• 1D: —
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

PRBLX vs. AKREX - Expense Ratio Comparison

PRBLX has a 0.82% expense ratio, which is lower than AKREX's 1.30% expense ratio.

AKREX

Akre Focus Fund Retail Class

PRBLX

Parnassus Core Equity Fund

Return for Risk

PRBLX vs. AKREX — Risk / Return Rank

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

PRBLX

PRBLX Risk / Return Rank: 16
PRBLX Sharpe Ratio Rank: 15
PRBLX Sortino Ratio Rank: 16
PRBLX Omega Ratio Rank: 15
PRBLX Calmar Ratio Rank: 16
PRBLX Martin Ratio Rank: 17

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.

PRBLX vs. AKREX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Parnassus Core Equity Fund (PRBLX) and Akre Focus Fund Retail Class (AKREX). 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.

	PRBLX	AKREX	Difference
Sharpe ratio Return per unit of total volatility	0.44	—	—
Sortino ratio Return per unit of downside risk	0.76	—	—
Omega ratio Gain probability vs. loss probability	1.11	—	—
Calmar ratio Return relative to maximum drawdown	0.49	—	—
Martin ratio Return relative to average drawdown	1.81	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	PRBLX	AKREX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.44	—	—
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.51	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.71	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.69	—	—

Correlation

The correlation between PRBLX and AKREX is 0.85, 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

PRBLX vs. AKREX - Dividend Comparison

PRBLX's dividend yield for the trailing twelve months is around 20.28%, more than AKREX's 4.80% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PRBLX Parnassus Core Equity Fund	20.28%	19.08%	10.00%	6.01%	10.13%	7.77%	5.87%	8.02%	9.64%	7.16%	3.80%	9.62%
AKREX Akre Focus Fund Retail Class	4.80%	4.80%	5.07%	3.56%	6.73%	3.65%	0.00%	2.99%	0.55%	0.62%	0.18%	0.00%

Drawdowns

Drawdown Indicators

	PRBLX	AKREX	Difference
Max Drawdown Largest peak-to-trough decline	-42.20%	—	—
Max Drawdown (1Y) Largest decline over 1 year	-11.63%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-26.31%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-30.09%	—	—
Current Drawdown Current decline from peak	-9.24%	—	—
Average Drawdown Average peak-to-trough decline	-4.06%	—	—
Ulcer Index Depth and duration of drawdowns from previous peaks	3.14%	—	—

Volatility

Volatility by Period

	PRBLX	AKREX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.11%	—	—
Volatility (6M) Calculated over the trailing 6-month period	8.96%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	16.86%	—	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.23%	—	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.24%	—	—