OBND vs. COMT
OBND (SPDR Loomis Sayles Opportunistic Bond ETF) and COMT (iShares GSCI Commodity Dynamic Roll Strategy ETF) are both exchange-traded funds - OBND is a Nontraditional Bonds fund actively managed by State Street, while COMT is a Commodities fund tracking the S&P GSCI Dynamic Roll (USD) Total Return Index. OBND is actively managed, while COMT is passively managed. Over the past 3 years, OBND returned 6.84%/yr vs 12.01%/yr for COMT. At a correlation of -0.03, they often move in opposite directions. OBND charges 0.55%/yr vs 0.48%/yr for COMT.
Performance
OBND vs. COMT - Performance Comparison
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Returns By Period
In the year-to-date period, OBND achieves a 1.47% return, which is significantly lower than COMT's 23.88% return.
OBND
- 1D
- -0.00%
- 1M
- 0.54%
- YTD
- 1.47%
- 6M
- 1.42%
- 1Y
- 5.74%
- 3Y*
- 6.84%
- 5Y*
- —
- 10Y*
- —
COMT
- 1D
- -0.93%
- 1M
- -11.91%
- YTD
- 23.88%
- 6M
- 22.75%
- 1Y
- 25.27%
- 3Y*
- 12.01%
- 5Y*
- 10.76%
- 10Y*
- 7.96%
OBND vs. COMT - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | |
|---|---|---|---|---|---|---|
OBND SPDR Loomis Sayles Opportunistic Bond ETF | 1.47% | 7.85% | 4.80% | 9.47% | -11.24% | 0.05% |
COMT iShares GSCI Commodity Dynamic Roll Strategy ETF | 23.88% | 6.07% | 5.96% | -6.56% | 19.45% | 1.58% |
Correlation
The correlation between OBND and COMT is -0.33, 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 (1Y) Calculated over the trailing 1-year period | -0.33 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.12 |
Correlation (All Time) Calculated using the full available price history since Sep 28, 2021 | -0.03 |
Over the past year, the inverse relationship between OBND and COMT has strengthened: their correlation has moved from -0.03 to -0.33, meaning they now move in opposite directions more often than their long-term average.
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Return for Risk
OBND vs. COMT — Risk / Return Rank
OBND
COMT
OBND vs. COMT - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for SPDR Loomis Sayles Opportunistic Bond ETF (OBND) and iShares GSCI Commodity Dynamic Roll Strategy ETF (COMT). 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.
| OBND | COMT | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.46 | ||
| Sortino ratioReturn per unit of downside risk | +0.75 | ||
| Omega ratioGain probability vs. loss probability | 1.31 | 1.22 | +0.09 |
| Calmar ratioReturn relative to maximum drawdown | 2.00 | 1.63 | +0.37 |
| Martin ratioReturn relative to average drawdown | 8.70 | 6.99 | +1.71 |
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Drawdowns
OBND vs. COMT - Drawdown Comparison
The maximum OBND drawdown since its inception was -15.86%, smaller than the maximum COMT drawdown of -51.89%. Use the drawdown chart below to compare losses from any high point for OBND and COMT.
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Drawdown Indicators
| OBND | COMT | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -15.86% | -51.89% | +36.03% |
Max Drawdown (1Y)Largest decline over 1 year | -2.88% | -15.58% | +12.70% |
Max Drawdown (3Y)Largest decline over 3 years | -3.17% | -15.58% | +12.41% |
Max Drawdown (5Y)Largest decline over 5 years | — | -29.00% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -39.22% | — |
Current DrawdownCurrent decline from peak | -0.27% | -15.58% | +15.31% |
Average DrawdownAverage peak-to-trough decline | -4.36% | -24.00% | +19.64% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.66% | 3.65% | -2.99% |
Volatility
OBND vs. COMT - Volatility Comparison
The current volatility for SPDR Loomis Sayles Opportunistic Bond ETF (OBND) is 1.13%, while iShares GSCI Commodity Dynamic Roll Strategy ETF (COMT) has a volatility of 5.02%. This indicates that OBND experiences smaller price fluctuations and is considered to be less risky than COMT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| OBND | COMT | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.13% | 5.02% | -3.89% |
Volatility (6M)Calculated over the trailing 6-month period | 2.79% | 19.24% | -16.45% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.48% | 21.45% | -17.97% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.66% | 21.13% | -16.47% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.66% | 18.86% | -14.20% |
OBND vs. COMT - Expense Ratio Comparison
OBND has a 0.55% expense ratio, which is higher than COMT's 0.48% expense ratio.
Dividends
OBND vs. COMT - Dividend Comparison
OBND's dividend yield for the trailing twelve months is around 6.27%, which matches COMT's 6.25% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
COMT iShares GSCI Commodity Dynamic Roll Strategy ETF | 6.25% | 7.74% | 4.90% | 5.19% | 29.79% | 17.79% | 0.36% | 2.61% | 11.65% | 5.16% | 0.52% | 1.44% |
OBND SPDR Loomis Sayles Opportunistic Bond ETF | 6.27% | 6.26% | 6.53% | 6.01% | 4.56% | 0.55% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
OBND and COMT have a correlation of -0.33, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
COMT has higher volatility (5.02%) compared to OBND (1.13%). In terms of maximum drawdown, OBND dropped -15.86% vs COMT's -51.89%.
On 3-year performance, COMT leads with 12.01% vs 6.84% for OBND. On fees, COMT is cheaper at 0.48% per year. On volatility, OBND has been the lower-risk option at 1.13%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 3-year period, COMT has performed better with a 12.01% return vs 6.84%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
COMT is cheaper with a 0.48% expense ratio, compared with 0.55% for OBND.
OBND has the higher dividend yield at 6.27%, compared with 6.25% for COMT.
OBND is categorized as Nontraditional Bonds, while COMT is Commodities. They also come from different issuers: State Street and iShares. Their fees differ too: 0.55% for OBND and 0.48% for COMT.
OBND currently has the higher Sharpe Ratio (1.66 vs 1.20), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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