CORB vs. GSG
CORB (AB Core Bond ETF) and GSG (iShares S&P GSCI Commodity-Indexed Trust) are both exchange-traded funds - CORB is a Intermediate Core Bond fund actively managed by AllianceBernstein, while GSG is a Commodities fund tracking the S&P GSCI Total Return Index. CORB is actively managed, while GSG is passively managed. At a correlation of -0.40, they often move in opposite directions. CORB charges 0.28%/yr vs 0.75%/yr for GSG.
Performance
CORB vs. GSG - Performance Comparison
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Returns By Period
In the year-to-date period, CORB achieves a 0.06% return, which is significantly lower than GSG's 25.54% return.
CORB
- 1D
- -0.24%
- 1M
- 0.56%
- YTD
- 0.06%
- 6M
- 0.12%
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
GSG
- 1D
- -1.03%
- 1M
- -12.93%
- YTD
- 25.54%
- 6M
- 23.88%
- 1Y
- 27.65%
- 3Y*
- 14.02%
- 5Y*
- 12.78%
- 10Y*
- 6.58%
CORB vs. GSG - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
CORB AB Core Bond ETF | 0.06% | 0.41% |
GSG iShares S&P GSCI Commodity-Indexed Trust | 25.54% | -0.09% |
Correlation
The correlation between CORB and GSG is -0.40, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.
| Correlation | |
|---|---|
Correlation (All Time) Calculated using the full available price history since Nov 10, 2025 | -0.40 |
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Return for Risk
CORB vs. GSG — Risk / Return Rank
CORB
Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.
GSG
CORB vs. GSG - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for AB Core Bond ETF (CORB) and iShares S&P GSCI Commodity-Indexed Trust (GSG). 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 | GSG | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | — | 1.23 | — |
| Calmar ratioReturn relative to maximum drawdown | — | 1.66 | — |
| Martin ratioReturn relative to average drawdown | — | 6.95 | — |
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Drawdowns
CORB vs. GSG - Drawdown Comparison
The maximum CORB drawdown since its inception was -3.08%, smaller than the maximum GSG drawdown of -89.62%. Use the drawdown chart below to compare losses from any high point for CORB and GSG.
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Drawdown Indicators
| CORB | GSG | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -3.08% | -89.62% | +86.54% |
Max Drawdown (1Y)Largest decline over 1 year | — | -16.74% | — |
Max Drawdown (3Y)Largest decline over 3 years | — | -16.74% | — |
Max Drawdown (5Y)Largest decline over 5 years | — | -29.12% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -57.64% | — |
Current DrawdownCurrent decline from peak | -1.73% | -62.10% | +60.37% |
Average DrawdownAverage peak-to-trough decline | -1.04% | -63.69% | +62.65% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | — | 4.01% | — |
Volatility
CORB vs. GSG - Volatility Comparison
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Volatility by Period
| CORB | GSG | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | — | 5.46% | — |
Volatility (6M)Calculated over the trailing 6-month period | — | 20.82% | — |
Volatility (1Y)Calculated over the trailing 1-year period | 4.05% | 23.17% | -19.12% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.05% | 22.67% | -18.62% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.05% | 22.01% | -17.96% |
CORB vs. GSG - Expense Ratio Comparison
CORB has a 0.28% expense ratio, which is lower than GSG's 0.75% expense ratio.
Dividends
CORB vs. GSG - Dividend Comparison
CORB's dividend yield for the trailing twelve months is around 2.41%, while GSG has not paid dividends to shareholders.
| Position | TTM | 2025 |
|---|---|---|
CORB AB Core Bond ETF | 2.41% | 0.81% |
GSG iShares S&P GSCI Commodity-Indexed Trust | 0.00% | 0.00% |
Frequently Asked Questions
CORB and GSG have a correlation of -0.40, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
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.
CORB is cheaper with a 0.28% expense ratio, compared with 0.75% for GSG.
CORB has the higher dividend yield at 2.41%, compared with 0.00% for GSG.
CORB is categorized as Intermediate Core Bond, while GSG is Commodities. They also come from different issuers: AllianceBernstein and iShares. Their fees differ too: 0.28% for CORB and 0.75% for GSG.
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