CORB vs. TAFI
CORB (AB Core Bond ETF) and TAFI (AB Tax-Aware Short Duration ETF) are both exchange-traded funds - CORB is a Intermediate Core Bond fund actively managed by AllianceBernstein, while TAFI is a Municipal Bonds fund actively managed by AllianceBernstein. Both are actively managed. Their 0.55 correlation means they have sometimes moved together and sometimes differently. CORB charges 0.28%/yr vs 0.27%/yr for TAFI.
Performance
CORB vs. TAFI - Performance Comparison
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Returns By Period
In the year-to-date period, CORB achieves a -0.91% return, which is significantly lower than TAFI's 0.92% return.
CORB
- 1D
- -0.27%
- 1M
- -1.29%
- 6M
- -1.03%
- YTD
- -0.91%
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
- ALL TIME*
- —
TAFI
- 1D
- 0.00%
- 1M
- -0.44%
- 6M
- 0.32%
- YTD
- 0.92%
- 1Y
- 2.52%
- 3Y*
- 3.45%
- 5Y*
- —
- 10Y*
- —
- ALL TIME*
- 3.20%
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 |
| $7.43M | $8.15M | $11.64M |
CORB vs. TAFI - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
CORB AB Core Bond ETF | -0.91% | 0.41% |
TAFI AB Tax-Aware Short Duration ETF | 0.92% | 0.44% |
Correlation
The correlation between CORB and TAFI is 0.55, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.
| Correlation | |
|---|---|
Correlation (All Time) Calculated using the full available price history since Nov 10, 2025 | 0.55 |
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Return for Risk
CORB vs. TAFI — Risk / Return Rank
CORB
Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.
TAFI
CORB vs. TAFI - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for AB Core Bond ETF (CORB) and AB Tax-Aware Short Duration ETF (TAFI). 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 | TAFI | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | — | 1.39 | — |
| Calmar ratioReturn relative to maximum drawdown | — | 2.28 | — |
| Martin ratioReturn relative to average drawdown | — | 7.81 | — |
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Drawdowns
CORB vs. TAFI - Drawdown Comparison
The maximum CORB drawdown since its inception was -3.08%, which is greater than TAFI's maximum drawdown of -2.00%. Use the drawdown chart below to compare losses from any high point for CORB and TAFI.
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Drawdown Indicators
| CORB | TAFI | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -3.08% | -2.00% | -1.08% |
Max Drawdown (1Y)Largest decline over 1 year | — | -1.21% | — |
Max Drawdown (3Y)Largest decline over 3 years | — | -1.87% | — |
Current DrawdownCurrent decline from peak | -2.69% | -0.60% | -2.09% |
Average DrawdownAverage peak-to-trough decline | -1.17% | -0.37% | -0.80% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | — | 0.35% | — |
Volatility
CORB vs. TAFI - Volatility Comparison
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Volatility by Period
| CORB | TAFI | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | — | 0.44% | — |
Volatility (6M)Calculated over the trailing 6-month period | — | 1.00% | — |
Volatility (1Y)Calculated over the trailing 1-year period | 4.05% | 1.42% | +2.63% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.05% | 1.96% | +2.09% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.05% | 1.96% | +2.09% |
CORB vs. TAFI - Expense Ratio Comparison
CORB has a 0.28% expense ratio, which is higher than TAFI's 0.27% expense ratio.
Dividends
CORB vs. TAFI - Dividend Comparison
CORB's dividend yield for the trailing twelve months is around 2.77%, less than TAFI's 3.13% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 |
|---|---|---|---|---|---|
CORB AB Core Bond ETF | 2.77% | 0.81% | 0.00% | 0.00% | 0.00% |
TAFI AB Tax-Aware Short Duration ETF | 2.86% | 3.21% | 3.34% | 3.27% | 0.79% |
Frequently Asked Questions
CORB and TAFI have a correlation of 0.55, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, TAFI is cheaper at 0.27% per year. The better choice depends on whether you care most about return, fees, risk, or income.
TAFI is cheaper with a 0.27% expense ratio, compared with 0.28% for CORB.
TAFI has the higher dividend yield at 2.86%, compared with 2.77% for CORB.
CORB is categorized as Intermediate Core Bond, while TAFI is Municipal Bonds. Their fees differ too: 0.28% for CORB and 0.27% for TAFI.
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