BUFC vs. OILK

Last updated Jun 3, 2026

BUFC (AB Conservative Buffer ETF) and OILK (ProShares K-1 Free Crude Oil Strategy ETF) are both exchange-traded funds - BUFC is a Options Trading fund actively managed by AllianceBernstein, while OILK is a Oil & Gas fund tracking the Bloomberg Commodity Balanced WTI Crude Oil Index. BUFC is actively managed, while OILK is passively managed. Over the past year, BUFC returned 8.73% vs 57.89% for OILK. At a 0.04 correlation, their price movements are largely independent. BUFC charges 0.69%/yr vs 0.68%/yr for OILK.

Performance

BUFC vs. OILK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in AB Conservative Buffer ETF (BUFC) and ProShares K-1 Free Crude Oil Strategy ETF (OILK). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BUFC achieves a 2.82% return, which is significantly lower than OILK's 61.95% return.

BUFC

• 1D: -0.14%
• 1M: 1.29%
• YTD: 2.82%
• 6M: 3.33%
• 1Y: 8.73%
• 3Y*: —
• 5Y*: —
• 10Y*: —

OILK

• 1D: 1.15%
• 1M: 0.89%
• YTD: 61.95%
• 6M: 59.31%
• 1Y: 57.89%
• 3Y*: 18.48%
• 5Y*: 17.52%
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

BUFC vs. OILK - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
BUFC AB Conservative Buffer ETF	2.82%	5.50%	10.81%	0.47%
OILK ProShares K-1 Free Crude Oil Strategy ETF	61.95%	-11.86%	8.18%	0.86%

Correlation

The correlation between BUFC and OILK is -0.18, 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	-0.18
Correlation (All Time) Calculated using the full available price history since Dec 14, 2023	0.04

The correlation between BUFC and OILK shifts across timeframes, from -0.18 (1 year) to 0.04 (all time), reflecting how their relationship changes across market environments.

BUFC vs. OILK - Sectors Allocation Comparison

Sectors	BUFC	OILK
Technology	33.6%	-
Financial Services	12.5%	-
Communication Services	10.5%	-
Consumer Cyclical	10.1%	100.0%
Healthcare	9.6%	-
Industrials	8.6%	-
Consumer Defensive	5.3%	-
Energy	3.4%	-
Utilities	2.5%	-
Real Estate	2.0%	-
Basic Materials	1.9%	-

Return for Risk

BUFC vs. OILK — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

BUFC

BUFC Risk / Return Rank: 58
BUFC Sharpe Ratio Rank: 60
BUFC Sortino Ratio Rank: 61
BUFC Omega Ratio Rank: 64
BUFC Calmar Ratio Rank: 49
BUFC Martin Ratio Rank: 59

OILK

OILK Risk / Return Rank: 56
OILK Sharpe Ratio Rank: 59
OILK Sortino Ratio Rank: 52
OILK Omega Ratio Rank: 54
OILK Calmar Ratio Rank: 71
OILK Martin Ratio Rank: 44

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

BUFC vs. OILK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AB Conservative Buffer ETF (BUFC) 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.

	BUFC	OILK	Difference
Sharpe ratio Return per unit of total volatility	2.06	2.03	+0.04
Sortino ratio Return per unit of downside risk	2.92	2.55	+0.37
Omega ratio Gain probability vs. loss probability	1.40	1.34	+0.06
Calmar ratio Return relative to maximum drawdown	2.46	3.61	-1.15
Martin ratio Return relative to average drawdown	10.54	7.33	+3.21
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

BUFC vs. OILK - Sharpe Ratio Comparison

The current BUFC Sharpe Ratio is 2.06, which is comparable to the OILK Sharpe Ratio of 2.03. The chart below compares the historical Sharpe Ratios of BUFC and OILK, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	BUFC	OILK	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.06	2.03	+0.04
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.59	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.42	0.11	+1.31

Drawdowns

BUFC vs. OILK - Drawdown Comparison

The maximum BUFC drawdown since its inception was -8.29%, smaller than the maximum OILK drawdown of -83.76%. Use the drawdown chart below to compare losses from any high point for BUFC and OILK.

Drawdown Indicators

	BUFC	OILK	Difference
Max Drawdown Largest peak-to-trough decline	-8.29%	-83.76%	+75.47%
Max Drawdown (1Y) Largest decline over 1 year	-3.62%	-17.35%	+13.73%
Max Drawdown (3Y) Largest decline over 3 years	—	-23.42%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-34.69%	—
Current Drawdown Current decline from peak	-0.14%	-4.99%	+4.85%
Average Drawdown Average peak-to-trough decline	-0.76%	-32.62%	+31.86%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.85%	8.56%	-7.71%

Volatility

BUFC vs. OILK - Volatility Comparison

The current volatility for AB Conservative Buffer ETF (BUFC) is 1.04%, while ProShares K-1 Free Crude Oil Strategy ETF (OILK) has a volatility of 11.11%. This indicates that BUFC 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.

Volatility by Period

	BUFC	OILK	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.04%	11.11%	-10.07%
Volatility (6M) Calculated over the trailing 6-month period	3.36%	23.24%	-19.88%
Volatility (1Y) Calculated over the trailing 1-year period	4.25%	28.86%	-24.61%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.64%	30.11%	-24.47%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.64%	35.98%	-30.34%

BUFC vs. OILK - Expense Ratio Comparison

BUFC has a 0.69% expense ratio, which is higher than OILK's 0.68% expense ratio.

Dividends

BUFC vs. OILK - Dividend Comparison

BUFC has not paid dividends to shareholders, while OILK's dividend yield for the trailing twelve months is around 8.29%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
BUFC AB Conservative Buffer ETF	0.00%	0.00%	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	8.29%	4.79%	3.11%	5.80%	17.32%	68.82%	0.13%	0.94%	0.58%	6.17%

Frequently Asked Questions

Can I hold both BUFC and OILK in my portfolio?

BUFC and OILK have a correlation of -0.18, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, BUFC or OILK?

OILK has higher volatility (11.11%) compared to BUFC (1.04%). In terms of maximum drawdown, BUFC dropped -8.29% vs OILK's -83.76%.

Which ETF is better, BUFC or OILK?

On 1-year performance, OILK leads with 57.89% vs 8.73% for BUFC. On fees, OILK is cheaper at 0.68% per year. On volatility, BUFC has been the lower-risk option at 1.04%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, BUFC or OILK?

Over the 1-year period, OILK has performed better with a 57.89% return vs 8.73%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, BUFC or OILK?

OILK is cheaper with a 0.68% expense ratio, compared with 0.69% for BUFC.

Which ETF pays a higher dividend yield, BUFC or OILK?

OILK has the higher dividend yield at 8.29%, compared with 0.00% for BUFC.

What is the main difference between BUFC and OILK?

BUFC is categorized as Options Trading, while OILK is Oil & Gas. They also come from different issuers: AllianceBernstein and ProShares. Their fees differ too: 0.69% for BUFC and 0.68% for OILK.

Which has better risk-adjusted returns?

BUFC currently has the higher Sharpe Ratio (2.06 vs 2.03), 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.