OPOCX vs. VBK
Compare and contrast key facts about Invesco Discovery Fund (OPOCX) and Vanguard Small-Cap Growth ETF (VBK).
OPOCX is managed by Invesco. It was launched on Sep 11, 1986. VBK is a passively managed fund by Vanguard that tracks the performance of the CRSP US Small Cap Growth Index. It was launched on Jan 26, 2004.
Performance
OPOCX vs. VBK - Performance Comparison
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OPOCX vs. VBK - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
OPOCX Invesco Discovery Fund | 0.98% | 16.77% | 22.61% | 17.02% | -31.26% | 14.78% | 50.33% | 36.81% | -4.15% | 29.04% |
VBK Vanguard Small-Cap Growth ETF | 0.16% | 8.50% | 16.50% | 21.45% | -28.44% | 5.66% | 35.44% | 32.75% | -5.70% | 21.87% |
Returns By Period
In the year-to-date period, OPOCX achieves a 0.98% return, which is significantly higher than VBK's 0.16% return. Over the past 10 years, OPOCX has outperformed VBK with an annualized return of 14.07%, while VBK has yielded a comparatively lower 10.46% annualized return.
OPOCX
- 1D
- -3.42%
- 1M
- -9.68%
- YTD
- 0.98%
- 6M
- 6.20%
- 1Y
- 34.23%
- 3Y*
- 16.82%
- 5Y*
- 5.24%
- 10Y*
- 14.07%
VBK
- 1D
- 4.37%
- 1M
- -5.52%
- YTD
- 0.16%
- 6M
- 1.80%
- 1Y
- 20.70%
- 3Y*
- 12.47%
- 5Y*
- 2.16%
- 10Y*
- 10.46%
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OPOCX vs. VBK - Expense Ratio Comparison
OPOCX has a 1.01% expense ratio, which is higher than VBK's 0.07% expense ratio.
Return for Risk
OPOCX vs. VBK — Risk / Return Rank
OPOCX
VBK
OPOCX vs. VBK - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Invesco Discovery Fund (OPOCX) and Vanguard Small-Cap Growth ETF (VBK). 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.
| OPOCX | VBK | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.27 | 0.85 | +0.42 |
Sortino ratioReturn per unit of downside risk | 1.81 | 1.34 | +0.47 |
Omega ratioGain probability vs. loss probability | 1.24 | 1.18 | +0.07 |
Calmar ratioReturn relative to maximum drawdown | 2.20 | 1.38 | +0.82 |
Martin ratioReturn relative to average drawdown | 8.89 | 5.52 | +3.37 |
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
| OPOCX | VBK | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.27 | 0.85 | +0.42 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.21 | 0.09 | +0.12 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.57 | 0.46 | +0.11 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.48 | 0.40 | +0.09 |
Correlation
The correlation between OPOCX and VBK is 0.95, 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
OPOCX vs. VBK - Dividend Comparison
OPOCX's dividend yield for the trailing twelve months is around 13.28%, more than VBK's 0.52% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
OPOCX Invesco Discovery Fund | 13.28% | 13.41% | 6.86% | 0.00% | 0.00% | 20.51% | 11.22% | 6.42% | 18.85% | 12.46% | 4.33% | 6.84% |
VBK Vanguard Small-Cap Growth ETF | 0.52% | 0.54% | 0.54% | 0.68% | 0.55% | 0.36% | 0.44% | 0.57% | 0.79% | 0.82% | 1.08% | 0.98% |
Drawdowns
OPOCX vs. VBK - Drawdown Comparison
The maximum OPOCX drawdown since its inception was -64.17%, which is greater than VBK's maximum drawdown of -58.68%. Use the drawdown chart below to compare losses from any high point for OPOCX and VBK.
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Drawdown Indicators
| OPOCX | VBK | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -64.17% | -58.68% | -5.49% |
Max Drawdown (1Y)Largest decline over 1 year | -13.39% | -14.56% | +1.17% |
Max Drawdown (5Y)Largest decline over 5 years | -43.27% | -38.39% | -4.88% |
Max Drawdown (10Y)Largest decline over 10 years | -43.27% | -38.70% | -4.57% |
Current DrawdownCurrent decline from peak | -11.38% | -7.57% | -3.81% |
Average DrawdownAverage peak-to-trough decline | -18.95% | -10.22% | -8.73% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.31% | 3.65% | -0.34% |
Volatility
OPOCX vs. VBK - Volatility Comparison
Invesco Discovery Fund (OPOCX) has a higher volatility of 11.43% compared to Vanguard Small-Cap Growth ETF (VBK) at 8.73%. This indicates that OPOCX's price experiences larger fluctuations and is considered to be riskier than VBK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| OPOCX | VBK | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 11.43% | 8.73% | +2.70% |
Volatility (6M)Calculated over the trailing 6-month period | 19.07% | 15.41% | +3.66% |
Volatility (1Y)Calculated over the trailing 1-year period | 26.81% | 24.44% | +2.37% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 25.15% | 23.49% | +1.66% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 24.62% | 22.80% | +1.82% |