KORP vs. OILK
KORP (American Century Diversified Corporate Bond ETF) and OILK (ProShares K-1 Free Crude Oil Strategy ETF) are both exchange-traded funds - KORP is a Corporate Bonds fund actively managed by American Century, while OILK is a Oil & Gas fund tracking the Bloomberg Commodity Balanced WTI Crude Oil Index. KORP is actively managed, while OILK is passively managed. Over the past 5 years, KORP returned 1.76%/yr vs 17.73%/yr for OILK. At a correlation of -0.07, they often move in opposite directions. KORP charges 0.29%/yr vs 0.68%/yr for OILK.
Performance
KORP vs. OILK - Performance Comparison
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Returns By Period
In the year-to-date period, KORP achieves a 0.69% return, which is significantly lower than OILK's 64.22% return.
KORP
- 1D
- -0.23%
- 1M
- 0.60%
- YTD
- 0.69%
- 6M
- 0.54%
- 1Y
- 6.42%
- 3Y*
- 5.79%
- 5Y*
- 1.76%
- 10Y*
- —
OILK
- 1D
- 1.40%
- 1M
- -1.65%
- YTD
- 64.22%
- 6M
- 60.70%
- 1Y
- 58.99%
- 3Y*
- 19.03%
- 5Y*
- 17.73%
- 10Y*
- —
KORP vs. OILK - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
KORP American Century Diversified Corporate Bond ETF | 0.69% | 8.14% | 3.82% | 7.40% | -10.04% | -0.55% | 6.99% | 10.08% | -1.20% |
OILK ProShares K-1 Free Crude Oil Strategy ETF | 64.22% | -11.86% | 8.18% | -0.97% | 27.57% | 63.71% | -61.09% | 30.48% | -25.01% |
Correlation
The correlation between KORP and OILK is -0.38, 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 (1Y) Calculated over the trailing 1-year period | -0.38 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.19 |
Correlation (5Y) Calculated over the trailing 5-year period | -0.12 |
Correlation (All Time) Calculated using the full available price history since Jan 17, 2018 | -0.07 |
Over the past year, the inverse relationship between KORP and OILK has strengthened: their correlation has moved from -0.07 to -0.38, meaning they now move in opposite directions more often than their long-term average.
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Return for Risk
KORP vs. OILK — Risk / Return Rank
KORP
OILK
KORP vs. OILK - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for American Century Diversified Corporate Bond ETF (KORP) and ProShares K-1 Free Crude Oil Strategy ETF (OILK). 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.
| KORP | OILK | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.58 | ||
| Sortino ratioReturn per unit of downside risk | -0.44 | ||
| Omega ratioGain probability vs. loss probability | 1.26 | 1.34 | -0.08 |
| Calmar ratioReturn relative to maximum drawdown | 2.00 | 3.42 | -1.42 |
| Martin ratioReturn relative to average drawdown | 6.64 | 6.91 | -0.27 |
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
| KORP | OILK | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.48 | 2.06 | -0.58 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.33 | 0.59 | -0.26 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.58 | 0.12 | +0.46 |
Drawdowns
KORP vs. OILK - Drawdown Comparison
The maximum KORP drawdown since its inception was -14.90%, smaller than the maximum OILK drawdown of -83.76%. Use the drawdown chart below to compare losses from any high point for KORP and OILK.
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Drawdown Indicators
| KORP | OILK | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -14.90% | -83.76% | +68.86% |
Max Drawdown (1Y)Largest decline over 1 year | -3.22% | -17.35% | +14.13% |
Max Drawdown (3Y)Largest decline over 3 years | -5.04% | -23.42% | +18.38% |
Max Drawdown (5Y)Largest decline over 5 years | -14.90% | -34.69% | +19.79% |
Current DrawdownCurrent decline from peak | -1.07% | -3.66% | +2.59% |
Average DrawdownAverage peak-to-trough decline | -3.23% | -32.61% | +29.38% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.97% | 8.56% | -7.59% |
Volatility
KORP vs. OILK - Volatility Comparison
The current volatility for American Century Diversified Corporate Bond ETF (KORP) is 1.44%, while ProShares K-1 Free Crude Oil Strategy ETF (OILK) has a volatility of 10.44%. This indicates that KORP experiences smaller price fluctuations and is considered to be less risky than OILK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| KORP | OILK | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.44% | 10.44% | -9.00% |
Volatility (6M)Calculated over the trailing 6-month period | 3.29% | 23.26% | -19.97% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.36% | 28.75% | -24.39% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.36% | 30.12% | -24.76% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.92% | 35.97% | -31.05% |
KORP vs. OILK - Expense Ratio Comparison
KORP has a 0.29% expense ratio, which is lower than OILK's 0.68% expense ratio.
Dividends
KORP vs. OILK - Dividend Comparison
KORP's dividend yield for the trailing twelve months is around 4.69%, less than OILK's 8.18% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
KORP American Century Diversified Corporate Bond ETF | 4.69% | 4.98% | 5.08% | 4.42% | 2.89% | 1.86% | 3.22% | 3.20% | 2.97% | 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
KORP and OILK have a correlation of -0.38, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
OILK has higher volatility (10.44%) compared to KORP (1.44%). In terms of maximum drawdown, KORP dropped -14.90% vs OILK's -83.76%.
On 5-year performance, OILK leads with 17.73% vs 1.76% for KORP. On fees, KORP is cheaper at 0.29% per year. On volatility, KORP has been the lower-risk option at 1.44%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 5-year period, OILK has performed better with a 17.73% return vs 1.76%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
KORP is cheaper with a 0.29% expense ratio, compared with 0.68% for OILK.
OILK has the higher dividend yield at 8.18%, compared with 4.69% for KORP.
KORP is categorized as Corporate Bonds, while OILK is Oil & Gas. They also come from different issuers: American Century and ProShares. Their fees differ too: 0.29% for KORP and 0.68% for OILK.
OILK currently has the higher Sharpe Ratio (2.06 vs 1.48), 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.
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