PDIAX vs. POSKX

Last updated Jun 4, 2026

PDIAX (Virtus KAR Equity Income Fund) and POSKX (PrimeCap Odyssey Stock Fund) are both Large Cap Blend Equities funds. Over the past 10 years, PDIAX returned 10.43%/yr vs 16.24%/yr for POSKX. Their correlation of 0.88 suggests significant overlap in exposure. PDIAX charges 1.20%/yr vs 0.65%/yr for POSKX.

Performance

PDIAX vs. POSKX - Performance Comparison

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

Returns By Period

In the year-to-date period, PDIAX achieves a 11.50% return, which is significantly lower than POSKX's 22.10% return. Over the past 10 years, PDIAX has underperformed POSKX with an annualized return of 10.43%, while POSKX has yielded a comparatively higher 16.24% annualized return.

PDIAX

• 1D: 1.22%
• 1M: 3.32%
• YTD: 11.50%
• 6M: 10.93%
• 1Y: 17.78%
• 3Y*: 13.34%
• 5Y*: 6.96%
• 10Y*: 10.43%

POSKX

• 1D: 0.52%
• 1M: 9.11%
• YTD: 22.10%
• 6M: 22.48%
• 1Y: 50.17%
• 3Y*: 25.06%
• 5Y*: 15.87%
• 10Y*: 16.24%

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

PDIAX vs. POSKX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PDIAX Virtus KAR Equity Income Fund	11.50%	13.45%	9.10%	1.08%	-2.58%	17.04%	14.51%	28.11%	-12.69%	22.45%
POSKX PrimeCap Odyssey Stock Fund	22.10%	25.73%	12.77%	21.18%	-11.12%	32.48%	10.13%	27.15%	-7.19%	25.99%

Correlation

The correlation between PDIAX and POSKX is 0.72, 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	0.72
Correlation (3Y) Calculated over the trailing 3-year period	0.73
Correlation (5Y) Calculated over the trailing 5-year period	0.77
Correlation (10Y) Calculated over the trailing 10-year period	0.82
Correlation (All Time) Calculated using the full available price history since Nov 3, 2004	0.88

The correlation between PDIAX and POSKX shifts across timeframes, from 0.72 (1 year) to 0.88 (all time), reflecting how their relationship changes across market environments.

Return for Risk

PDIAX vs. POSKX — Risk / Return Rank

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

PDIAX

PDIAX Risk / Return Rank: 53
PDIAX Sharpe Ratio Rank: 46
PDIAX Sortino Ratio Rank: 48
PDIAX Omega Ratio Rank: 44
PDIAX Calmar Ratio Rank: 60
PDIAX Martin Ratio Rank: 64

POSKX

POSKX Risk / Return Rank: 91
POSKX Sharpe Ratio Rank: 94
POSKX Sortino Ratio Rank: 91
POSKX Omega Ratio Rank: 85
POSKX Calmar Ratio Rank: 93
POSKX Martin Ratio Rank: 94

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.

PDIAX vs. POSKX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Virtus KAR Equity Income Fund (PDIAX) and PrimeCap Odyssey Stock Fund (POSKX). 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.

	PDIAX	POSKX	Difference
Sharpe ratio: Return per unit of total volatility	1.99	3.25	-1.26
Sortino ratio: Return per unit of downside risk	2.93	4.48	-1.55
Omega ratio: Gain probability vs. loss probability	1.36	1.57	-0.21
Calmar ratio: Return relative to maximum drawdown	2.98	5.18	-2.20
Martin ratio: Return relative to average drawdown	12.57	21.69	-9.11
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

PDIAX vs. POSKX - Sharpe Ratio Comparison

The current PDIAX Sharpe Ratio is 1.99, which is lower than the POSKX Sharpe Ratio of 3.25. The chart below compares the historical Sharpe Ratios of PDIAX and POSKX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	PDIAX	POSKX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.99	3.25	-1.26
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.54	0.89	-0.35
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.62	0.86	-0.24
Sharpe Ratio (All Time) Calculated using the full available price history	0.42	0.67	-0.25

Drawdowns

PDIAX vs. POSKX - Drawdown Comparison

The maximum PDIAX drawdown since its inception was -53.27%, which is greater than POSKX's maximum drawdown of -50.18%. Use the drawdown chart below to compare losses from any high point for PDIAX and POSKX.

Drawdown Indicators

	PDIAX	POSKX	Difference
Max Drawdown Largest peak-to-trough decline	-53.27%	-50.18%	-3.09%
Max Drawdown (1Y) Largest decline over 1 year	-6.22%	-9.99%	+3.77%
Max Drawdown (3Y) Largest decline over 3 years	-12.04%	-20.25%	+8.21%
Max Drawdown (5Y) Largest decline over 5 years	-16.21%	-22.96%	+6.75%
Max Drawdown (10Y) Largest decline over 10 years	-35.26%	-36.88%	+1.62%
Current Drawdown Current decline from peak	0.00%	-0.12%	+0.12%
Average Drawdown Average peak-to-trough decline	-8.38%	-6.15%	-2.23%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.47%	2.38%	-0.91%

Volatility

PDIAX vs. POSKX - Volatility Comparison

The current volatility for Virtus KAR Equity Income Fund (PDIAX) is 2.96%, while PrimeCap Odyssey Stock Fund (POSKX) has a volatility of 6.13%. This indicates that PDIAX experiences smaller price fluctuations and is considered to be less risky than POSKX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PDIAX	POSKX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.96%	6.13%	-3.17%
Volatility (6M) Calculated over the trailing 6-month period	7.21%	12.66%	-5.45%
Volatility (1Y) Calculated over the trailing 1-year period	9.30%	15.92%	-6.62%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	13.01%	17.87%	-4.86%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.92%	19.00%	-2.08%

PDIAX vs. POSKX - Expense Ratio Comparison

PDIAX has a 1.20% expense ratio, which is higher than POSKX's 0.65% expense ratio.

Dividends

PDIAX vs. POSKX - Dividend Comparison

PDIAX's dividend yield for the trailing twelve months is around 6.18%, less than POSKX's 22.47% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PDIAX Virtus KAR Equity Income Fund	6.18%	6.52%	2.88%	2.71%	5.83%	4.16%	35.18%	0.95%	1.20%	15.53%	3.60%	19.74%
POSKX PrimeCap Odyssey Stock Fund	22.47%	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 PDIAX and POSKX in my portfolio?

PDIAX and POSKX have a correlation of 0.72, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PDIAX or POSKX?

POSKX has higher volatility (6.13%) compared to PDIAX (2.96%). In terms of maximum drawdown, PDIAX dropped -53.27% vs POSKX's -50.18%.

Which has better risk-adjusted returns?

POSKX currently has the higher Sharpe Ratio (3.25 vs 1.99), 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.