- Issuer
- AllianceBernstein
- Inception Date
- Nov 10, 2025
- Category
- Intermediate Core Bond
- Leveraged
- 1x (No leverage)
- Index Tracked
- No Index (Active)
- Distribution Policy
- Distributing
- Asset Class
- Bond
Share Price Chart
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Performance
CORB Performance Chart
AB Core Bond ETF (CORB) is up 0.1% since the beginning of the year. CORB is currently trading at $29 per share.
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Returns By Period
AB Core Bond ETF
- 1D
- -0.24%
- 1M
- 0.56%
- YTD
- 0.06%
- 6M
- 0.12%
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
Benchmark (S&P 500 Index)
- 1D
- -0.37%
- 1M
- -0.01%
- YTD
- 9.16%
- 6M
- 8.64%
- 1Y
- 25.22%
- 3Y*
- 19.78%
- 5Y*
- 11.99%
- 10Y*
- 13.88%
CORB Monthly Returns History
Based on dividend-adjusted daily data since Nov 10, 2025, CORB's average daily return is 0.00%, while the average monthly return is +0.06%. At this rate, an investment would double in approximately 96.3 years.
Historically, 63% of months were positive and 38% were negative. The best month was Feb 2026 with a return of +1.7%, while the worst month was Mar 2026 at -1.9%. The longest winning streak lasted 2 consecutive months, and the longest losing streak was 1 months.
On a daily basis, CORB closed higher 50% of trading days. The best single day was May 20, 2026 with a return of +0.6%, while the worst single day was Mar 26, 2026 at -0.7%.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0.12% | 1.70% | -1.91% | 0.05% | 0.22% | -0.09% | 0.06% | ||||||
| 2025 | 0.75% | -0.34% | 0.41% |
Benchmark Metrics
AB Core Bond ETF has an annualized alpha of -1.74%, beta of 0.14, and R2 of 0.24 versus S&P 500 Index. Calculated based on daily prices since November 10, 2025.
- This ETF participated in 9.78% of S&P 500 Index downside but only 4.82% of its upside - more exposed to losses than it benefited from rallies.
- Beta of 0.14 may look defensive, but with R2 of 0.24 this ETF is largely uncorrelated with S&P 500 Index - low beta reflects independence, not downside protection. See the Volatility section for a true picture of this ETF's risk.
- R2 of 0.24 means this ETF moves largely independently of S&P 500 Index - capture ratios reflect limited market correlation rather than active downside protection. Consider using a more representative benchmark.
- Alpha
- -1.74%
- Beta
- 0.14
- R²
- 0.24
- Upside Capture
- 4.82%
- Downside Capture
- 9.78%
Expense Ratio
CORB has an expense ratio of 0.28%, placing it in the medium range.
Return for Risk
Return / Risk — by metrics
The table below present risk-adjusted performance metrics for AB Core Bond ETF (CORB) and compare them to S&P 500 Index.
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 | Benchmark | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | — | 1.37 | — |
| Calmar ratioReturn relative to maximum drawdown | — | 2.78 | — |
| Martin ratioReturn relative to average drawdown | — | 12.44 | — |
Dividends
Dividend History
AB Core Bond ETF provided a 2.41% dividend yield over the last twelve months, with an annual payout of $0.71 per share.
| Period | TTM | 2025 |
|---|---|---|
| Dividend | $0.71 | $0.24 |
Dividend yield | 2.41% | 0.81% |
Monthly Dividends
The table displays the monthly dividend distributions for AB Core Bond ETF. The dividends shown in the table have been adjusted to account for any splits that may have occurred.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | $0.00 | $0.09 | $0.09 | $0.09 | $0.09 | $0.10 | $0.47 | ||||||
| 2025 | $0.24 | $0.24 |
Drawdowns
Drawdowns Chart
The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.
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Worst Drawdowns
The table below displays the maximum drawdowns of the AB Core Bond ETF. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.
The maximum drawdown for the AB Core Bond ETF was 3.08%, occurring on May 19, 2026. The portfolio has not yet recovered.
The current AB Core Bond ETF drawdown is 1.73%.
Related event | Drawdown | Fall | Recovery | Underwater |
|---|---|---|---|---|
2026 pullback2026 | -3.08%May 2026 | 2mo 18d | — | 3mo 23dMar 2026 - now |
2025 pullback2025 | -0.90%Dec 2025 | 11d | 2mo 3d | 2mo 14dNov 2025 - Feb 2026 |
2025 pullback2025 | -0.46%Nov 2025 | 1d | 10d | 11dNov 2025 - Nov 2025 |
2026 pullback2026 | -0.23%Feb 2026 | 0s | 1d | 1dFeb 2026 - Feb 2026 |
2026 pullback2026 | -0.17%Feb 2026 | 2d | 3d | 5dFeb 2026 - Feb 2026 |
Drawdown Indicators
| CORB | Benchmark | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -3.08% | -56.78% | +53.70% |
Max Drawdown (1Y)Largest decline over 1 year | — | -9.10% | — |
Max Drawdown (3Y)Largest decline over 3 years | — | -18.90% | — |
Max Drawdown (5Y)Largest decline over 5 years | — | -25.43% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -33.92% | — |
Current DrawdownCurrent decline from peak | -1.73% | -1.80% | +0.07% |
Average DrawdownAverage peak-to-trough decline | -1.04% | -10.71% | +9.67% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | — | 2.03% | — |
Volatility
Volatility Chart
The chart below shows the rolling one-month volatility.
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