OILK vs. CORB
OILK (ProShares K-1 Free Crude Oil 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. Their -0.45 correlation means they have often moved in opposite directions in the past. OILK charges 0.69%/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 47.49% return, which is significantly higher than CORB's -0.77% return.
OILK
- 1D
- -3.24%
- 1M
- 8.88%
- 6M
- 37.83%
- YTD
- 47.49%
- 1Y
- 33.62%
- 3Y*
- 9.71%
- 5Y*
- 15.25%
- 10Y*
- —
- ALL TIME*
- 3.29%
CORB
- 1D
- 0.15%
- 1M
- -1.15%
- 6M
- -0.71%
- YTD
- -0.77%
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
- ALL TIME*
- —
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
CORB AB Core Bond ETF | $1.72M | $2.39M | $2.95M |
| $8.74M | $7.86M | $10.67M |
OILK vs. CORB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
OILK ProShares K-1 Free Crude Oil ETF | 47.49% | -3.88% |
CORB AB Core Bond ETF | -0.77% | 0.41% |
Correlation
The correlation between OILK and CORB is -0.45, meaning they have often moved in opposite directions in the past. This relationship can weaken or reverse as market conditions change.
| Correlation | |
|---|---|
Correlation (All Time) Calculated using the full available price history since Nov 10, 2025 | -0.45 |
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Return for Risk
OILK vs. CORB — Risk / Return Rank
OILK
CORB
Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.
OILK vs. CORB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for ProShares K-1 Free Crude Oil 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.
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.
| OILK | CORB | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | 1.20 | — | — |
| Calmar ratioReturn relative to maximum drawdown | 1.59 | — | — |
| Martin ratioReturn relative to average drawdown | 4.49 | — | — |
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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 | -21.19% | — | — |
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 | -13.47% | -2.54% | -10.93% |
Average DrawdownAverage peak-to-trough decline | -32.27% | -1.18% | -31.09% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 7.52% | — | — |
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 | 11.95% | — | — |
Volatility (6M)Calculated over the trailing 6-month period | 26.22% | — | — |
Volatility (1Y)Calculated over the trailing 1-year period | 30.24% | 4.04% | +26.20% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 30.48% | 4.04% | +26.44% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 36.00% | 4.04% | +31.96% |
OILK vs. CORB - Expense Ratio Comparison
OILK has a 0.69% 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 11.51%, more than CORB's 3.12% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
CORB AB Core Bond ETF | 3.12% | 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 ETF | 11.51% | 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 -0.45, 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 0.69% for OILK.
OILK has the higher dividend yield at 11.51%, compared with 3.12% 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: 0.69% for OILK and 0.28% for CORB.
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