DUKX vs. BUFI

Last updated Jun 4, 2026

DUKX (Ocean Park International ETF) and BUFI (AB International Buffer ETF) are both exchange-traded funds - DUKX is a Foreign Large Cap Equities fund actively managed by Ocean Park, while BUFI is a Defined Outcome fund actively managed by AllianceBernstein. Both are actively managed. Over the past year, DUKX returned 27.12% vs 12.80% for BUFI. Their correlation of 0.83 suggests significant overlap in exposure. DUKX charges 1.03%/yr vs 0.69%/yr for BUFI.

Performance

DUKX vs. BUFI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Ocean Park International ETF (DUKX) and AB International Buffer ETF (BUFI). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, DUKX achieves a 10.68% return, which is significantly higher than BUFI's 4.92% return.

DUKX

• 1D: -1.04%
• 1M: 4.42%
• YTD: 10.68%
• 6M: 12.70%
• 1Y: 27.12%
• 3Y*: —
• 5Y*: —
• 10Y*: —

BUFI

• 1D: -0.31%
• 1M: 1.83%
• YTD: 4.92%
• 6M: 6.32%
• 1Y: 12.80%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

DUKX vs. BUFI - Yearly Performance Comparison

	2026 (YTD)	2025	2024
DUKX Ocean Park International ETF	10.68%	11.07%	-3.37%
BUFI AB International Buffer ETF	4.92%	16.50%	-1.31%

Correlation

The correlation between DUKX and BUFI is 0.87, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.87
Correlation (All Time) Calculated using the full available price history since Dec 11, 2024	0.83

The correlation between DUKX and BUFI has been stable across timeframes, ranging from 0.83 to 0.87 - a consistent structural relationship.

Return for Risk

DUKX vs. BUFI — Risk / Return Rank

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

DUKX

DUKX Risk / Return Rank: 57
DUKX Sharpe Ratio Rank: 61
DUKX Sortino Ratio Rank: 58
DUKX Omega Ratio Rank: 62
DUKX Calmar Ratio Rank: 59
DUKX Martin Ratio Rank: 48

BUFI

BUFI Risk / Return Rank: 47
BUFI Sharpe Ratio Rank: 44
BUFI Sortino Ratio Rank: 46
BUFI Omega Ratio Rank: 47
BUFI Calmar Ratio Rank: 46
BUFI Martin Ratio Rank: 53

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.

DUKX vs. BUFI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Ocean Park International ETF (DUKX) and AB International Buffer ETF (BUFI). 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.

	DUKX	BUFI	Difference
Sharpe ratio Return per unit of total volatility	2.02	1.53	+0.49
Sortino ratio Return per unit of downside risk	2.70	2.25	+0.45
Omega ratio Gain probability vs. loss probability	1.37	1.30	+0.07
Calmar ratio Return relative to maximum drawdown	2.87	2.26	+0.61
Martin ratio Return relative to average drawdown	7.95	8.98	-1.03
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

DUKX vs. BUFI - Sharpe Ratio Comparison

The current DUKX Sharpe Ratio is 2.02, which is higher than the BUFI Sharpe Ratio of 1.53. The chart below compares the historical Sharpe Ratios of DUKX and BUFI, 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

	DUKX	BUFI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.02	1.53	+0.49
Sharpe Ratio (All Time) Calculated using the full available price history	0.67	1.50	-0.83

Drawdowns

DUKX vs. BUFI - Drawdown Comparison

The maximum DUKX drawdown since its inception was -19.52%, which is greater than BUFI's maximum drawdown of -7.43%. Use the drawdown chart below to compare losses from any high point for DUKX and BUFI.

Drawdown Indicators

	DUKX	BUFI	Difference
Max Drawdown Largest peak-to-trough decline	-19.52%	-7.43%	-12.09%
Max Drawdown (1Y) Largest decline over 1 year	-9.48%	-5.69%	-3.79%
Current Drawdown Current decline from peak	-1.90%	-0.32%	-1.58%
Average Drawdown Average peak-to-trough decline	-5.47%	-0.86%	-4.61%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.42%	1.43%	+1.99%

Volatility

DUKX vs. BUFI - Volatility Comparison

Ocean Park International ETF (DUKX) has a higher volatility of 5.54% compared to AB International Buffer ETF (BUFI) at 2.20%. This indicates that DUKX's price experiences larger fluctuations and is considered to be riskier than BUFI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	DUKX	BUFI	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.54%	2.20%	+3.34%
Volatility (6M) Calculated over the trailing 6-month period	11.00%	7.05%	+3.95%
Volatility (1Y) Calculated over the trailing 1-year period	13.49%	8.43%	+5.06%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.15%	9.15%	+5.00%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	14.15%	9.15%	+5.00%

DUKX vs. BUFI - Expense Ratio Comparison

DUKX has a 1.03% expense ratio, which is higher than BUFI's 0.69% expense ratio.

Dividends

DUKX vs. BUFI - Dividend Comparison

DUKX's dividend yield for the trailing twelve months is around 2.24%, while BUFI has not paid dividends to shareholders.

Position	TTM	2025	2024
BUFI AB International Buffer ETF	0.00%	0.00%	0.00%
DUKX Ocean Park International ETF	2.24%	2.65%	1.93%

Frequently Asked Questions

Can I hold both DUKX and BUFI in my portfolio?

DUKX and BUFI have a correlation of 0.87, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, DUKX or BUFI?

DUKX has higher volatility (5.54%) compared to BUFI (2.20%). In terms of maximum drawdown, DUKX dropped -19.52% vs BUFI's -7.43%.

Which ETF is better, DUKX or BUFI?

On 1-year performance, DUKX leads with 27.12% vs 12.80% for BUFI. On fees, BUFI is cheaper at 0.69% per year. On volatility, BUFI has been the lower-risk option at 2.20%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, DUKX or BUFI?

Over the 1-year period, DUKX has performed better with a 27.12% return vs 12.80%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, DUKX or BUFI?

BUFI is cheaper with a 0.69% expense ratio, compared with 1.03% for DUKX.

Which ETF pays a higher dividend yield, DUKX or BUFI?

DUKX has the higher dividend yield at 2.24%, compared with 0.00% for BUFI.

What is the main difference between DUKX and BUFI?

DUKX is categorized as Foreign Large Cap Equities, while BUFI is Defined Outcome. They also come from different issuers: Ocean Park and AllianceBernstein. Their fees differ too: 1.03% for DUKX and 0.69% for BUFI.

Which has better risk-adjusted returns?

DUKX currently has the higher Sharpe Ratio (2.02 vs 1.53), 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.