POSKX vs. JEPIX

Last updated Jul 16, 2026

POSKX (PrimeCap Odyssey Stock Fund) and JEPIX (JPMorgan Equity Premium Income Fund Class I) are both mutual funds - POSKX is a Large Cap Blend Equities fund managed by PRIMECAP Odyssey Funds, while JEPIX is a Derivative Income fund actively managed by JPMorgan. Over the past 5 years, POSKX returned 15.74%/yr vs 7.05%/yr for JEPIX. A 0.72 correlation means they provide meaningful diversification when combined. POSKX charges 0.65%/yr vs 0.59%/yr for JEPIX.

Performance

POSKX vs. JEPIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in PrimeCap Odyssey Stock Fund (POSKX) and JPMorgan Equity Premium Income Fund Class I (JEPIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, POSKX achieves a 21.31% return, which is significantly higher than JEPIX's 2.56% return.

POSKX

• 1D: 0.17%
• 1M: -3.62%
• 6M: 15.07%
• YTD: 21.31%
• 1Y: 40.57%
• 3Y*: 22.82%
• 5Y*: 15.74%
• 10Y*: 15.89%

JEPIX

• 1D: -0.43%
• 1M: 0.99%
• 6M: 0.86%
• YTD: 2.56%
• 1Y: 8.36%
• 3Y*: 8.79%
• 5Y*: 7.05%
• 10Y*: —

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

POSKX vs. JEPIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
POSKX PrimeCap Odyssey Stock Fund	21.31%	25.73%	12.77%	21.18%	-11.12%	32.48%	10.13%	27.15%	-14.06%
JEPIX JPMorgan Equity Premium Income Fund Class I	2.56%	7.82%	12.43%	9.68%	-3.81%	19.36%	6.02%	16.44%	-9.93%

Correlation

The correlation between POSKX and JEPIX is 0.59, 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	0.59
Correlation (3Y) Calculated over the trailing 3-year period	0.71
Correlation (5Y) Calculated over the trailing 5-year period	0.74
Correlation (All Time) Calculated using the full available price history since Sep 4, 2018	0.72

The correlation between POSKX and JEPIX shifts across timeframes, from 0.59 (1 year) to 0.74 (5 years), reflecting how their relationship changes across market environments.

Return for Risk

POSKX vs. JEPIX — Risk / Return Rank

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

POSKX

POSKX Risk / Return Rank: 87
POSKX Sharpe Ratio Rank: 85
POSKX Sortino Ratio Rank: 83
POSKX Omega Ratio Rank: 80
POSKX Calmar Ratio Rank: 92
POSKX Martin Ratio Rank: 93

JEPIX

JEPIX Risk / Return Rank: 18
JEPIX Sharpe Ratio Rank: 18
JEPIX Sortino Ratio Rank: 20
JEPIX Omega Ratio Rank: 19
JEPIX Calmar Ratio Rank: 17
JEPIX Martin Ratio Rank: 16

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.

POSKX vs. JEPIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for PrimeCap Odyssey Stock Fund (POSKX) and JPMorgan Equity Premium Income Fund Class I (JEPIX). 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.

	POSKX	JEPIX	Difference
Sharpe ratio: Return per unit of total volatility	2.23	0.88	+1.35
Sortino ratio: Return per unit of downside risk	3.14	1.38	+1.75
Omega ratio: Gain probability vs. loss probability	1.39	1.17	+0.22
Calmar ratio: Return relative to maximum drawdown	3.90	1.04	+2.86
Martin ratio: Return relative to average drawdown	15.25	3.00	+12.25

POSKX vs. JEPIX - Sharpe Ratio Comparison

The current POSKX Sharpe Ratio is 2.23, which is higher than the JEPIX Sharpe Ratio of 0.88. The chart below compares the historical Sharpe Ratios of POSKX and JEPIX, 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

POSKX vs. JEPIX - Drawdown Comparison

The maximum POSKX drawdown since its inception was -50.18%, which is greater than JEPIX's maximum drawdown of -32.63%. Use the drawdown chart below to compare losses from any high point for POSKX and JEPIX.

Drawdown Indicators

	POSKX	JEPIX	Difference
Max Drawdown Largest peak-to-trough decline	-50.18%	-32.63%	-17.55%
Max Drawdown (1Y) Largest decline over 1 year	-9.99%	-7.41%	-2.58%
Max Drawdown (3Y) Largest decline over 3 years	-20.25%	-13.42%	-6.83%
Max Drawdown (5Y) Largest decline over 5 years	-22.96%	-13.67%	-9.29%
Max Drawdown (10Y) Largest decline over 10 years	-36.88%	—	—
Current Drawdown Current decline from peak	-5.78%	-2.61%	-3.17%
Average Drawdown Average peak-to-trough decline	-6.13%	-3.21%	-2.92%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.55%	2.56%	-0.01%

Volatility

POSKX vs. JEPIX - Volatility Comparison

PrimeCap Odyssey Stock Fund (POSKX) has a higher volatility of 5.88% compared to JPMorgan Equity Premium Income Fund Class I (JEPIX) at 2.12%. This indicates that POSKX's price experiences larger fluctuations and is considered to be riskier than JEPIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	POSKX	JEPIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.88%	2.12%	+3.76%
Volatility (6M) Calculated over the trailing 6-month period	14.45%	7.02%	+7.43%
Volatility (1Y) Calculated over the trailing 1-year period	17.44%	8.71%	+8.73%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.15%	11.48%	+6.67%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.04%	14.68%	+4.36%

POSKX vs. JEPIX - Expense Ratio Comparison

POSKX has a 0.65% expense ratio, which is higher than JEPIX's 0.59% expense ratio.

Dividends

POSKX vs. JEPIX - Dividend Comparison

POSKX's dividend yield for the trailing twelve months is around 22.62%, more than JEPIX's 8.00% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
JEPIX JPMorgan Equity Premium Income Fund Class I	8.00%	8.12%	7.20%	8.42%	12.24%	6.15%	11.59%	3.91%	0.00%	0.00%	0.00%	0.00%
POSKX PrimeCap Odyssey Stock Fund	22.62%	27.44%	18.13%	10.14%	12.13%	14.58%	7.85%	6.03%	3.03%	2.17%	2.93%	1.92%

Frequently Asked Questions

Can I hold both POSKX and JEPIX in my portfolio?

POSKX and JEPIX have a correlation of 0.59, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, POSKX or JEPIX?

POSKX has higher volatility (5.88%) compared to JEPIX (2.12%). In terms of maximum drawdown, POSKX dropped -50.18% vs JEPIX's -32.63%.

Which has better risk-adjusted returns?

POSKX currently has the higher Sharpe Ratio (2.23 vs 0.88), 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.