XBI vs. COMT
XBI (SPDR S&P Biotech ETF) and COMT (iShares GSCI Commodity Dynamic Roll Strategy ETF) are both exchange-traded funds - XBI is a Health & Biotech Equities fund tracking the S&P Biotechnology Select Industry Index, while COMT is a Commodities fund tracking the S&P GSCI Dynamic Roll (USD) Total Return Index. Both are passively managed. Over the past 10 years, XBI returned 9.23%/yr vs 8.63%/yr for COMT. Their 0.14 correlation means their historical movements had little consistent relationship. XBI charges 0.35%/yr vs 0.48%/yr for COMT.
Performance
XBI vs. COMT - Performance Comparison
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Returns By Period
In the year-to-date period, XBI achieves a 25.61% return, which is significantly lower than COMT's 29.49% return. Over the past 10 years, XBI has outperformed COMT with an annualized return of 9.23%, while COMT has yielded a comparatively lower 8.63% annualized return.
XBI
- 1D
- 0.74%
- 1M
- -4.85%
- 6M
- 22.24%
- YTD
- 25.61%
- 1Y
- 76.98%
- 3Y*
- 23.76%
- 5Y*
- 3.88%
- 10Y*
- 9.23%
- ALL TIME*
- 11.79%
COMT
- 1D
- 0.65%
- 1M
- 5.25%
- 6M
- 19.23%
- YTD
- 29.49%
- 1Y
- 33.46%
- 3Y*
- 10.63%
- 5Y*
- 11.85%
- 10Y*
- 8.63%
- ALL TIME*
- 3.30%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $6.13M | $10.19M | $11.89M | |
| $1.20B | $1.32B | $1.30B |
XBI vs. COMT - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
XBI SPDR S&P Biotech ETF | 25.61% | 35.89% | 1.01% | 7.60% | -25.87% | -20.45% | 48.33% | 32.56% | -15.28% | 43.77% |
COMT iShares GSCI Commodity Dynamic Roll Strategy ETF | 29.49% | 6.07% | 5.96% | -6.56% | 19.45% | 36.88% | -18.66% | 10.81% | -6.67% | 11.70% |
Correlation
The correlation between XBI and COMT is -0.23, meaning they have often moved in opposite directions in the past. This relationship can weaken or reverse as market conditions change.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | -0.23 |
Correlation (3Y) Balances recent behavior with more history. | -0.08 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.01 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.14 |
Correlation (All Time) Calculated using the full available price history since Oct 16, 2014 | 0.14 |
The correlation between XBI and COMT shifts across timeframes, from -0.23 (1 year) to 0.14 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
XBI vs. COMT — Risk / Return Rank
XBI
COMT
XBI vs. COMT - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for SPDR S&P Biotech ETF (XBI) 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.
| XBI | COMT | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.30 | ||
| Sortino ratioReturn per unit of downside risk | +1.52 | ||
| Omega ratioGain probability vs. loss probability | 1.44 | 1.27 | +0.16 |
| Calmar ratioReturn relative to maximum drawdown | 7.36 | 1.91 | +5.45 |
| Martin ratioReturn relative to average drawdown | 20.17 | 5.84 | +14.34 |
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Drawdowns
XBI vs. COMT - Drawdown Comparison
The maximum XBI drawdown since its inception was -63.89%, which is greater than COMT's maximum drawdown of -51.89%. Use the drawdown chart below to compare losses from any high point for XBI and COMT.
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Drawdown Indicators
| XBI | COMT | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -63.89% | -51.89% | -12.00% |
Max Drawdown (1Y)Largest decline over 1 year | -10.51% | -17.57% | +7.06% |
Max Drawdown (3Y)Largest decline over 3 years | -32.99% | -17.57% | -15.42% |
Max Drawdown (5Y)Largest decline over 5 years | -54.00% | -29.00% | -25.00% |
Max Drawdown (10Y)Largest decline over 10 years | -63.89% | -39.22% | -24.67% |
Current DrawdownCurrent decline from peak | -11.48% | -11.75% | +0.27% |
Average DrawdownAverage peak-to-trough decline | -20.87% | -23.89% | +3.02% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.83% | 5.75% | -1.92% |
Volatility
XBI vs. COMT - Volatility Comparison
SPDR S&P Biotech ETF (XBI) has a higher volatility of 8.26% compared to iShares GSCI Commodity Dynamic Roll Strategy ETF (COMT) at 5.13%. This indicates that XBI's price experiences larger fluctuations and is considered to be riskier 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
| XBI | COMT | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 8.26% | 5.13% | +3.13% |
Volatility (6M)Calculated over the trailing 6-month period | 21.56% | 18.95% | +2.61% |
Volatility (1Y)Calculated over the trailing 1-year period | 27.11% | 21.64% | +5.47% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 32.32% | 21.09% | +11.23% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 31.94% | 18.86% | +13.08% |
XBI vs. COMT - Expense Ratio Comparison
XBI has a 0.35% expense ratio, which is lower than COMT's 0.48% expense ratio.
Dividends
XBI vs. COMT - Dividend Comparison
XBI's dividend yield for the trailing twelve months is around 0.37%, less than COMT's 5.98% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
COMT iShares GSCI Commodity Dynamic Roll Strategy ETF | 5.98% | 7.74% | 4.90% | 5.19% | 29.79% | 17.79% | 0.36% | 2.61% | 11.65% | 5.16% | 0.52% | 1.44% |
XBI SPDR S&P Biotech ETF | 0.37% | 0.37% | 0.15% | 0.02% | 0.00% | 0.04% | 0.20% | 0.00% | 0.28% | 0.24% | 0.26% | 0.61% |
Frequently Asked Questions
XBI and COMT have a correlation of -0.23, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
XBI has higher volatility (8.26%) compared to COMT (5.13%). In terms of maximum drawdown, XBI dropped -63.89% vs COMT's -51.89%.
On 10-year performance, XBI leads with 9.23% vs 8.63% for COMT. On fees, XBI is cheaper at 0.35% per year. On volatility, COMT has been the lower-risk option at 5.13%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 10-year period, XBI has performed better with a 9.23% return vs 8.63%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
XBI is cheaper with a 0.35% expense ratio, compared with 0.48% for COMT.
COMT has the higher dividend yield at 5.98%, compared with 0.37% for XBI.
XBI is categorized as Health & Biotech Equities, while COMT is Commodities. XBI tracks S&P Biotechnology Select Industry Index, while COMT tracks S&P GSCI Dynamic Roll (USD) Total Return Index. They also come from different issuers: State Street and iShares. Their fees differ too: 0.35% for XBI and 0.48% for COMT.
XBI currently has the higher Sharpe Ratio (2.86 vs 1.55), 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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