SPTB vs. COMT
SPTB (State Street SPDR Portfolio Treasury ETF) and COMT (iShares Commodities Select Strategy ETF) are both exchange-traded funds - SPTB is a Government Bonds fund tracking the Bloomberg U.S. Treasury Index, while COMT is a Commodities fund actively managed by iShares. SPTB is passively managed, while COMT is actively managed. Over the past year, SPTB returned 3.87% vs 47.51% for COMT. At a correlation of -0.26, they often move in opposite directions. SPTB charges 0.03%/yr vs 0.48%/yr for COMT.
Performance
SPTB vs. COMT - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, SPTB achieves a -0.07% return, which is significantly lower than COMT's 39.67% return.
SPTB
- 1D
- -0.22%
- 1M
- 0.08%
- YTD
- -0.07%
- 6M
- -0.37%
- 1Y
- 3.87%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
COMT
- 1D
- 0.78%
- 1M
- -4.35%
- YTD
- 39.67%
- 6M
- 39.06%
- 1Y
- 47.51%
- 3Y*
- 16.86%
- 5Y*
- 13.50%
- 10Y*
- 9.09%
SPTB vs. COMT - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | |
|---|---|---|---|
SPTB State Street SPDR Portfolio Treasury ETF | -0.07% | 6.14% | 2.17% |
COMT iShares Commodities Select Strategy ETF | 39.67% | 6.07% | -3.58% |
Correlation
The correlation between SPTB and COMT is -0.37, 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 | -0.37 |
Correlation (All Time) Calculated using the full available price history since May 22, 2024 | -0.26 |
The correlation between SPTB and COMT shifts across timeframes, from -0.37 (1 year) to -0.26 (all time), reflecting how their relationship changes across market environments.
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
SPTB vs. COMT — Risk / Return Rank
SPTB
COMT
SPTB vs. COMT - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for State Street SPDR Portfolio Treasury ETF (SPTB) and iShares Commodities Select 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.
| SPTB | COMT | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.17 | ||
| Sortino ratioReturn per unit of downside risk | -1.27 | ||
| Omega ratioGain probability vs. loss probability | 1.19 | 1.40 | -0.21 |
| Calmar ratioReturn relative to maximum drawdown | 1.34 | 5.95 | -4.61 |
| Martin ratioReturn relative to average drawdown | 3.98 | 14.11 | -10.13 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading charts...
Sharpe Ratios by Period
| SPTB | COMT | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.07 | 2.24 | -1.17 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | — | 0.64 | — |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | 0.48 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.92 | 0.20 | +0.71 |
Drawdowns
SPTB vs. COMT - Drawdown Comparison
The maximum SPTB drawdown since its inception was -4.96%, smaller than the maximum COMT drawdown of -51.89%. Use the drawdown chart below to compare losses from any high point for SPTB and COMT.
Loading charts...
Drawdown Indicators
| SPTB | COMT | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -4.96% | -51.89% | +46.93% |
Max Drawdown (1Y)Largest decline over 1 year | -2.90% | -8.02% | +5.12% |
Max Drawdown (3Y)Largest decline over 3 years | — | -13.31% | — |
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 | -1.94% | -4.82% | +2.88% |
Average DrawdownAverage peak-to-trough decline | -1.32% | -24.07% | +22.75% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.98% | 3.38% | -2.40% |
Volatility
SPTB vs. COMT - Volatility Comparison
The current volatility for State Street SPDR Portfolio Treasury ETF (SPTB) is 1.11%, while iShares Commodities Select Strategy ETF (COMT) has a volatility of 7.37%. This indicates that SPTB 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.
Loading charts...
Volatility by Period
| SPTB | COMT | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.11% | 7.37% | -6.26% |
Volatility (6M)Calculated over the trailing 6-month period | 2.47% | 18.80% | -16.33% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.64% | 21.29% | -17.65% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 4.42% | 21.06% | -16.64% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.42% | 18.89% | -14.47% |
SPTB vs. COMT - Expense Ratio Comparison
SPTB has a 0.03% expense ratio, which is lower than COMT's 0.48% expense ratio.
Dividends
SPTB vs. COMT - Dividend Comparison
SPTB's dividend yield for the trailing twelve months is around 4.20%, less than COMT's 5.54% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
COMT iShares Commodities Select Strategy ETF | 5.54% | 7.74% | 4.90% | 5.19% | 29.79% | 17.79% | 0.36% | 2.61% | 11.65% | 5.16% | 0.52% | 1.44% |
SPTB State Street SPDR Portfolio Treasury ETF | 4.20% | 4.23% | 2.76% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
SPTB and COMT have a correlation of -0.37, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
COMT has higher volatility (7.37%) compared to SPTB (1.11%). In terms of maximum drawdown, SPTB dropped -4.96% vs COMT's -51.89%.
On 1-year performance, COMT leads with 47.51% vs 3.87% for SPTB. On fees, SPTB is cheaper at 0.03% per year. On volatility, SPTB has been the lower-risk option at 1.11%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 1-year period, COMT has performed better with a 47.51% return vs 3.87%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
SPTB is cheaper with a 0.03% expense ratio, compared with 0.48% for COMT.
COMT has the higher dividend yield at 5.54%, compared with 4.20% for SPTB.
SPTB is categorized as Government Bonds, while COMT is Commodities. They also come from different issuers: State Street and iShares. Their fees differ too: 0.03% for SPTB and 0.48% for COMT.
COMT currently has the higher Sharpe Ratio (2.24 vs 1.07), 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.
Find the right allocation for SPTB and COMT
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer