POSKX vs. VOOG
Compare and contrast key facts about PrimeCap Odyssey Stock Fund (POSKX) and Vanguard S&P 500 Growth ETF (VOOG).
POSKX is managed by PRIMECAP Odyssey Funds. It was launched on Nov 1, 2004. VOOG is a passively managed fund by Vanguard that tracks the performance of the S&P 500 Growth Index. It was launched on Apr 5, 2019.
Performance
POSKX vs. VOOG - Performance Comparison
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POSKX vs. VOOG - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
POSKX PrimeCap Odyssey Stock Fund | 1.27% | 25.73% | 12.77% | 21.18% | -11.12% | 32.48% | 10.13% | 27.15% | -7.19% | 25.99% |
VOOG Vanguard S&P 500 Growth ETF | -6.97% | 22.11% | 35.89% | 29.96% | -29.48% | 31.95% | 33.35% | 30.93% | -0.21% | 27.19% |
Returns By Period
In the year-to-date period, POSKX achieves a 1.27% return, which is significantly higher than VOOG's -6.97% return. Over the past 10 years, POSKX has underperformed VOOG with an annualized return of 14.21%, while VOOG has yielded a comparatively higher 15.86% annualized return.
POSKX
- 1D
- 3.29%
- 1M
- -5.41%
- YTD
- 1.27%
- 6M
- 7.42%
- 1Y
- 31.27%
- 3Y*
- 18.84%
- 5Y*
- 12.41%
- 10Y*
- 14.21%
VOOG
- 1D
- 1.30%
- 1M
- -4.28%
- YTD
- -6.97%
- 6M
- -5.29%
- 1Y
- 23.21%
- 3Y*
- 22.32%
- 5Y*
- 12.46%
- 10Y*
- 15.86%
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POSKX vs. VOOG - Expense Ratio Comparison
POSKX has a 0.65% expense ratio, which is higher than VOOG's 0.07% expense ratio.
Return for Risk
POSKX vs. VOOG — Risk / Return Rank
POSKX
VOOG
POSKX vs. VOOG - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for PrimeCap Odyssey Stock Fund (POSKX) and Vanguard S&P 500 Growth ETF (VOOG). 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.
| POSKX | VOOG | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.50 | 1.05 | +0.45 |
Sortino ratioReturn per unit of downside risk | 2.12 | 1.62 | +0.50 |
Omega ratioGain probability vs. loss probability | 1.31 | 1.23 | +0.08 |
Calmar ratioReturn relative to maximum drawdown | 2.33 | 1.76 | +0.57 |
Martin ratioReturn relative to average drawdown | 10.01 | 6.81 | +3.20 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| POSKX | VOOG | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.50 | 1.05 | +0.45 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.71 | 0.59 | +0.11 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.75 | 0.77 | -0.02 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.62 | 0.84 | -0.22 |
Correlation
The correlation between POSKX and VOOG is 0.84, 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
POSKX vs. VOOG - Dividend Comparison
POSKX's dividend yield for the trailing twelve months is around 27.09%, more than VOOG's 0.53% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
POSKX PrimeCap Odyssey Stock Fund | 27.09% | 27.44% | 18.13% | 10.14% | 12.13% | 14.58% | 7.85% | 6.03% | 3.03% | 2.17% | 2.93% | 1.92% |
VOOG Vanguard S&P 500 Growth ETF | 0.53% | 0.49% | 0.49% | 1.12% | 0.93% | 0.53% | 0.88% | 1.26% | 1.34% | 1.32% | 1.47% | 1.56% |
Drawdowns
POSKX vs. VOOG - Drawdown Comparison
The maximum POSKX drawdown since its inception was -50.18%, which is greater than VOOG's maximum drawdown of -32.73%. Use the drawdown chart below to compare losses from any high point for POSKX and VOOG.
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Drawdown Indicators
| POSKX | VOOG | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -50.18% | -32.73% | -17.45% |
Max Drawdown (1Y)Largest decline over 1 year | -13.30% | -13.71% | +0.41% |
Max Drawdown (5Y)Largest decline over 5 years | -22.96% | -32.73% | +9.77% |
Max Drawdown (10Y)Largest decline over 10 years | -36.88% | -32.73% | -4.15% |
Current DrawdownCurrent decline from peak | -7.03% | -9.07% | +2.04% |
Average DrawdownAverage peak-to-trough decline | -6.19% | -5.01% | -1.18% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.10% | 3.54% | -0.44% |
Volatility
POSKX vs. VOOG - Volatility Comparison
The current volatility for PrimeCap Odyssey Stock Fund (POSKX) is 6.79%, while Vanguard S&P 500 Growth ETF (VOOG) has a volatility of 7.28%. This indicates that POSKX experiences smaller price fluctuations and is considered to be less risky than VOOG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| POSKX | VOOG | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.79% | 7.28% | -0.49% |
Volatility (6M)Calculated over the trailing 6-month period | 12.03% | 12.68% | -0.65% |
Volatility (1Y)Calculated over the trailing 1-year period | 20.58% | 22.28% | -1.70% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 17.66% | 21.16% | -3.50% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.88% | 20.65% | -1.77% |