CORB vs. USL

Last updated Aug 1, 2026

CORB (AB Core Bond ETF) and USL (United States 12 Month Oil Fund LP) are both exchange-traded funds - CORB is a Intermediate Core Bond fund actively managed by AllianceBernstein, while USL is a Oil & Gas fund tracking the 12 Month Light Sweet Crude Oil. CORB is actively managed, while USL is passively managed. Their -0.43 correlation means they have often moved in opposite directions in the past. CORB charges 0.28%/yr vs 0.88%/yr for USL.

Performance

CORB vs. USL - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in AB Core Bond ETF (CORB) and United States 12 Month Oil Fund LP (USL). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CORB achieves a -0.91% return, which is significantly lower than USL's 50.47% return.

CORB

• 1D: -0.27%
• 1M: -1.29%
• 6M: -1.03%
• YTD: -0.91%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: —

USL

• 1D: 0.72%
• 1M: 11.48%
• 6M: 34.61%
• YTD: 50.47%
• 1Y: 36.97%
• 3Y*: 10.51%
• 5Y*: 14.04%
• 10Y*: 11.91%
• ALL TIME*: -0.05%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
CORB AB Core Bond ETF	$1.51M	$2.31M	$2.96M
USL United States 12 Month Oil Fund LP	$634.47K	$669.88K	$1.15M

CORB vs. USL - Yearly Performance Comparison

	2026 (YTD)	2025
CORB AB Core Bond ETF	-0.91%	0.41%
USL United States 12 Month Oil Fund LP	50.47%	-3.75%

Correlation

The correlation between CORB and USL is -0.43, 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	-0.43

Return for Risk

CORB vs. USL — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

CORB

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

USL

USL Risk / Return Rank: 43
USL Sharpe Ratio Rank: 45
USL Sortino Ratio Rank: 44
USL Omega Ratio Rank: 42
USL Calmar Ratio Rank: 44
USL Martin Ratio Rank: 41

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

CORB vs. USL - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AB Core Bond ETF (CORB) and United States 12 Month Oil Fund LP (USL). 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.

	CORB	USL	Difference
Sharpe ratio: Return per unit of total volatility	—	1.11	—
Sortino ratio: Return per unit of downside risk	—	1.62	—
Omega ratio: Gain probability vs. loss probability	—	1.20	—
Calmar ratio: Return relative to maximum drawdown	—	1.58	—
Martin ratio: Return relative to average drawdown	—	4.38	—

Drawdowns

CORB vs. USL - Drawdown Comparison

The maximum CORB drawdown since its inception was -3.08%, smaller than the maximum USL drawdown of -89.06%. Use the drawdown chart below to compare losses from any high point for CORB and USL.

Drawdown Indicators

	CORB	USL	Difference
Max Drawdown Largest peak-to-trough decline	-3.08%	-89.06%	+85.98%
Max Drawdown (1Y) Largest decline over 1 year	—	-20.91%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-23.33%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-33.82%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-66.02%	—
Current Drawdown Current decline from peak	-2.69%	-42.93%	+40.24%
Average Drawdown Average peak-to-trough decline	-1.17%	-61.30%	+60.13%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	8.38%	—

Volatility

Volatility by Period

	CORB	USL	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	10.45%	—
Volatility (6M) Calculated over the trailing 6-month period	—	25.73%	—
Volatility (1Y) Calculated over the trailing 1-year period	4.05%	29.92%	-25.87%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.05%	30.36%	-26.31%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.05%	32.35%	-28.30%

CORB vs. USL - Expense Ratio Comparison

CORB has a 0.28% expense ratio, which is lower than USL's 0.88% expense ratio.

Dividends

CORB vs. USL - Dividend Comparison

CORB's dividend yield for the trailing twelve months is around 2.77%, while USL has not paid dividends to shareholders.

Position	TTM	2025
CORB AB Core Bond ETF	2.77%	0.81%
USL United States 12 Month Oil Fund LP	0.00%	0.00%

Frequently Asked Questions

Can I hold both CORB and USL in my portfolio?

CORB and USL have a correlation of -0.43, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, CORB or USL?

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, CORB or USL?

CORB is cheaper with a 0.28% expense ratio, compared with 0.88% for USL.

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

CORB has the higher dividend yield at 2.77%, compared with 0.00% for USL.

What is the main difference between CORB and USL?

CORB is categorized as Intermediate Core Bond, while USL is Oil & Gas. They also come from different issuers: AllianceBernstein and Concierge Technologies. Their fees differ too: 0.28% for CORB and 0.88% for USL.