AKREX vs. PRBLX

Last updated Jun 23, 2026

AKREX (Akre Focus Fund Retail Class) and PRBLX (Parnassus Core Equity Fund) are both mutual funds - AKREX is a Large Cap Growth Equities fund managed by Akre, while PRBLX is a Large Cap Blend Equities fund managed by Parnassus. Their correlation of 0.84 suggests significant overlap in exposure. AKREX charges 1.30%/yr vs 0.82%/yr for PRBLX.

Performance

AKREX vs. PRBLX - Performance Comparison

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

Returns By Period

AKREX

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

PRBLX

• 1D: 1.65%
• 1M: 2.48%
• YTD: 7.77%
• 6M: 7.55%
• 1Y: 16.44%
• 3Y*: 15.69%
• 5Y*: 10.64%
• 10Y*: 13.76%

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

AKREX vs. PRBLX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
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%
PRBLX Parnassus Core Equity Fund	7.77%	11.67%	18.58%	24.97%	-18.64%	27.59%	21.21%	30.68%	-0.30%	16.63%

Correlation

The correlation between AKREX and PRBLX is 0.28, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.28
Correlation (3Y) Calculated over the trailing 3-year period	0.66
Correlation (5Y) Calculated over the trailing 5-year period	0.80
Correlation (10Y) Calculated over the trailing 10-year period	0.82
Correlation (All Time) Calculated using the full available price history since Jan 4, 2010	0.84

Over the past year, the correlation between AKREX and PRBLX has dropped to 0.28 - well below their long-term average of 0.84, suggesting their price drivers have been diverging.

Return for Risk

AKREX vs. PRBLX — Risk / Return Rank

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

AKREX

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

PRBLX

PRBLX Risk / Return Rank: 22
PRBLX Sharpe Ratio Rank: 24
PRBLX Sortino Ratio Rank: 23
PRBLX Omega Ratio Rank: 22
PRBLX Calmar Ratio Rank: 17
PRBLX Martin Ratio Rank: 24

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.

AKREX vs. PRBLX - Risk-Adjusted Trends Comparison

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

	AKREX	PRBLX	Difference
Sharpe ratio: Return per unit of total volatility	—	1.31	—
Sortino ratio: Return per unit of downside risk	—	1.87	—
Omega ratio: Gain probability vs. loss probability	—	1.23	—
Calmar ratio: Return relative to maximum drawdown	—	1.39	—
Martin ratio: Return relative to average drawdown	—	5.38	—

Drawdowns

Drawdown Indicators

	AKREX	PRBLX	Difference
Max Drawdown Largest peak-to-trough decline	—	-42.20%	—
Max Drawdown (1Y) Largest decline over 1 year	—	-11.63%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-16.31%	—
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	—	-0.13%	—
Average Drawdown Average peak-to-trough decline	—	-4.04%	—
Ulcer Index Depth and duration of drawdowns from previous peaks	—	2.98%	—

Volatility

Volatility by Period

	AKREX	PRBLX	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	4.67%	—
Volatility (6M) Calculated over the trailing 6-month period	—	9.97%	—
Volatility (1Y) Calculated over the trailing 1-year period	—	12.35%	—
Volatility (5Y) Calculated over the trailing 5-year period, annualized	—	16.34%	—
Volatility (10Y) Calculated over the trailing 10-year period, annualized	—	17.31%	—

AKREX vs. PRBLX - Expense Ratio Comparison

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

Dividends

AKREX vs. PRBLX - Dividend Comparison

AKREX has not paid dividends to shareholders, while PRBLX's dividend yield for the trailing twelve months is around 17.66%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
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%
PRBLX Parnassus Core Equity Fund	17.66%	19.08%	10.00%	6.01%	10.13%	7.77%	5.87%	8.02%	9.64%	7.16%	3.80%	9.62%

Frequently Asked Questions

Can I hold both AKREX and PRBLX in my portfolio?

AKREX and PRBLX have a correlation of 0.28, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.