OILK vs. CORB
OILK (ProShares K-1 Free Crude Oil Strategy ETF) and CORB (AB Core Bond ETF) are both exchange-traded funds - OILK is a Oil & Gas fund tracking the Bloomberg Commodity Balanced WTI Crude Oil Index, while CORB is a Intermediate Core Bond fund actively managed by AllianceBernstein. OILK is passively managed, while CORB is actively managed. At a correlation of -0.46, they often move in opposite directions. OILK charges 0.68%/yr vs 0.28%/yr for CORB.
Performance
OILK vs. CORB - Performance Comparison
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Returns By Period
In the year-to-date period, OILK achieves a 64.22% return, which is significantly higher than CORB's -0.06% return.
OILK
- 1D
- 1.40%
- 1M
- -1.65%
- YTD
- 64.22%
- 6M
- 60.70%
- 1Y
- 58.99%
- 3Y*
- 19.03%
- 5Y*
- 17.73%
- 10Y*
- —
CORB
- 1D
- -0.18%
- 1M
- 0.23%
- YTD
- -0.06%
- 6M
- -0.16%
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
OILK vs. CORB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
OILK ProShares K-1 Free Crude Oil Strategy ETF | 64.22% | -4.49% |
CORB AB Core Bond ETF | -0.06% | 0.21% |
Correlation
The correlation between OILK and CORB is -0.46, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.
| Correlation | |
|---|---|
Correlation (All Time) Calculated using the full available price history since Nov 11, 2025 | -0.46 |
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Return for Risk
OILK vs. CORB — Risk / Return Rank
OILK
CORB
OILK vs. CORB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for ProShares K-1 Free Crude Oil Strategy ETF (OILK) and AB Core Bond ETF (CORB). 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.
| OILK | CORB | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | 1.34 | — | — |
| Calmar ratioReturn relative to maximum drawdown | 3.42 | — | — |
| Martin ratioReturn relative to average drawdown | 6.91 | — | — |
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
| OILK | CORB | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.06 | — | — |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.59 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.12 | 0.07 | +0.05 |
Drawdowns
OILK vs. CORB - Drawdown Comparison
The maximum OILK drawdown since its inception was -83.76%, which is greater than CORB's maximum drawdown of -3.08%. Use the drawdown chart below to compare losses from any high point for OILK and CORB.
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Drawdown Indicators
| OILK | CORB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -83.76% | -3.08% | -80.68% |
Max Drawdown (1Y)Largest decline over 1 year | -17.35% | — | — |
Max Drawdown (3Y)Largest decline over 3 years | -23.42% | — | — |
Max Drawdown (5Y)Largest decline over 5 years | -34.69% | — | — |
Current DrawdownCurrent decline from peak | -3.66% | -1.85% | -1.81% |
Average DrawdownAverage peak-to-trough decline | -32.61% | -0.98% | -31.63% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 8.56% | — | — |
Volatility
OILK vs. CORB - Volatility Comparison
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Volatility by Period
| OILK | CORB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 10.44% | — | — |
Volatility (6M)Calculated over the trailing 6-month period | 23.26% | — | — |
Volatility (1Y)Calculated over the trailing 1-year period | 28.75% | 3.96% | +24.79% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 30.12% | 3.96% | +26.16% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 35.97% | 3.96% | +32.01% |
OILK vs. CORB - Expense Ratio Comparison
OILK has a 0.68% expense ratio, which is higher than CORB's 0.28% expense ratio.
Dividends
OILK vs. CORB - Dividend Comparison
OILK's dividend yield for the trailing twelve months is around 8.18%, more than CORB's 2.41% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
CORB AB Core Bond ETF | 2.41% | 0.81% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
OILK ProShares K-1 Free Crude Oil Strategy ETF | 8.18% | 4.79% | 3.11% | 5.80% | 17.32% | 68.82% | 0.13% | 0.94% | 0.58% | 6.17% |
Frequently Asked Questions
OILK and CORB have a correlation of -0.46, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, CORB is cheaper at 0.28% per year. The better choice depends on whether you care most about return, fees, risk, or income.
CORB is cheaper with a 0.28% expense ratio, compared with 0.68% for OILK.
OILK has the higher dividend yield at 8.18%, compared with 2.41% for CORB.
OILK is categorized as Oil & Gas, while CORB is Intermediate Core Bond. They also come from different issuers: ProShares and AllianceBernstein. Their fees differ too: 0.68% for OILK and 0.28% for CORB.
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