BUFC vs. CORB

Last updated Jul 17, 2026

BUFC (AB Conservative Buffer ETF) and CORB (AB Core Bond ETF) are both exchange-traded funds - BUFC is a Options Trading fund actively managed by AllianceBernstein, while CORB is a Intermediate Core Bond fund actively managed by AllianceBernstein. Both are actively managed. At a 0.31 correlation, their price movements are largely independent. BUFC charges 0.69%/yr vs 0.28%/yr for CORB.

Performance

BUFC vs. CORB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in AB Conservative Buffer ETF (BUFC) and AB Core Bond ETF (CORB). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, BUFC achieves a 3.42% return, which is significantly higher than CORB's -0.13% return.

BUFC

• 1D: -0.10%
• 1M: 0.42%
• 6M: 2.89%
• YTD: 3.42%
• 1Y: 7.93%
• 3Y*: —
• 5Y*: —
• 10Y*: —

CORB

• 1D: -0.07%
• 1M: -0.64%
• 6M: -0.20%
• YTD: -0.13%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

BUFC vs. CORB - Yearly Performance Comparison

	2026 (YTD)	2025
BUFC AB Conservative Buffer ETF	3.42%	1.29%
CORB AB Core Bond ETF	-0.13%	0.41%

Correlation

The correlation between BUFC and CORB is 0.31, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (All Time) Calculated using the full available price history since Nov 10, 2025	0.31

Return for Risk

BUFC vs. CORB — Risk / Return Rank

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

BUFC

BUFC Risk / Return Rank: 67
BUFC Sharpe Ratio Rank: 71
BUFC Sortino Ratio Rank: 70
BUFC Omega Ratio Rank: 75
BUFC Calmar Ratio Rank: 54
BUFC Martin Ratio Rank: 66

CORB

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

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. CORB - Risk-Adjusted Trends Comparison

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

	BUFC	CORB	Difference
Sharpe ratio: Return per unit of total volatility	1.83	—	—
Sortino ratio: Return per unit of downside risk	2.56	—	—
Omega ratio: Gain probability vs. loss probability	1.35	—	—
Calmar ratio: Return relative to maximum drawdown	2.20	—	—
Martin ratio: Return relative to average drawdown	9.27	—	—

Drawdowns

BUFC vs. CORB - Drawdown Comparison

The maximum BUFC drawdown since its inception was -8.29%, which is greater than CORB's maximum drawdown of -3.08%. Use the drawdown chart below to compare losses from any high point for BUFC and CORB.

Drawdown Indicators

	BUFC	CORB	Difference
Max Drawdown Largest peak-to-trough decline	-8.29%	-3.08%	-5.21%
Max Drawdown (1Y) Largest decline over 1 year	-3.62%	—	—
Current Drawdown Current decline from peak	-0.10%	-1.92%	+1.82%
Average Drawdown Average peak-to-trough decline	-0.73%	-1.09%	+0.36%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.86%	—	—

Volatility

Volatility by Period

	BUFC	CORB	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.99%	—	—
Volatility (6M) Calculated over the trailing 6-month period	3.53%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	4.36%	4.08%	+0.28%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.59%	4.08%	+1.51%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.59%	4.08%	+1.51%

BUFC vs. CORB - Expense Ratio Comparison

BUFC has a 0.69% expense ratio, which is higher than CORB's 0.28% expense ratio.

Dividends

BUFC vs. CORB - Dividend Comparison

BUFC has not paid dividends to shareholders, while CORB's dividend yield for the trailing twelve months is around 2.75%.

Position	TTM	2025
BUFC AB Conservative Buffer ETF	0.00%	0.00%
CORB AB Core Bond ETF	2.75%	0.81%

Frequently Asked Questions

Can I hold both BUFC and CORB in my portfolio?

BUFC and CORB have a correlation of 0.31, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, BUFC or CORB?

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.

Which ETF is cheaper, BUFC or CORB?

CORB is cheaper with a 0.28% expense ratio, compared with 0.69% for BUFC.

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

CORB has the higher dividend yield at 2.75%, compared with 0.00% for BUFC.

What is the main difference between BUFC and CORB?

BUFC is categorized as Options Trading, while CORB is Intermediate Core Bond. Their fees differ too: 0.69% for BUFC and 0.28% for CORB.