COMT — iShares GSCI Commodity Dynamic Roll Strategy ETF
COMT tracks the S&P GSCI Dynamic Roll Index, which uses a rules-based dynamic rolling strategy to reduce contango drag in commodity futures markets. The fund covers a broad range of commodities including energy, agriculture, livestock, and metals, with energy heavily weighted as in the parent GSCI index. The dynamic roll selects the most favorably priced contract along the futures curve rather than always rolling to the nearest month.
Top Holdings
Strategy
- →Use for broad commodity exposure with dynamic roll optimization to reduce contango costs
- →Allocate as an inflation hedge and commodity diversifier
- →Compare roll strategy performance against simpler competitors like GSG before investing
- →Hold in tax-advantaged accounts given the complexity of commodity ETF tax treatment
Best For
- ✓Investors who want broad commodity exposure with a more sophisticated roll methodology
- ✓Those who believe dynamic roll reduces the return drag from commodity futures rolling
- ✓Inflation hedgers seeking diversified commodity exposure across multiple sectors
- ✓Portfolio builders adding a commodity risk factor alongside traditional equity and bond allocations
Key Risks
- ⚠Energy sector dominates most commodity indexes, creating concentration risk
- ⚠Futures-based — still subject to roll costs and contango despite dynamic optimization
- ⚠High commodity price volatility across all underlying sectors
- ⚠Expense ratio (0.48%) is high, and may not fully recoup roll savings versus cheaper alternatives
Similar ETFs
Frequently Asked Questions
What is the GSCI?
The S&P GSCI (Goldman Sachs Commodity Index) is one of the most widely followed commodity market benchmarks, heavily weighted toward energy. It tracks the performance of a broad range of commodity futures. COMT uses a dynamic roll variant of this index. This is educational content, not financial advice.
What is a dynamic roll strategy?
Rather than mechanically rolling to the nearest-month futures contract, a dynamic roll strategy selects from multiple contracts along the futures curve, choosing whichever minimizes contango costs or captures backwardation benefits. This aims to improve returns relative to simple rolling. This is educational content, not financial advice.
How much is COMT weighted toward energy?
Like most GSCI-based products, COMT is heavily weighted toward energy commodities (crude oil, natural gas) which historically represent 50–70% of the index. This creates significant sensitivity to oil and gas prices. This is educational content, not financial advice.
Does COMT issue a K-1?
COMT is structured as a registered investment company (RIC) that issues standard 1099 forms, avoiding K-1 complexity. This is one of its advantages over some competing commodity products. This is educational content, not financial advice.
Is COMT better than just buying GLD and USO separately?
COMT provides diversification across many commodities in one fund. Buying GLD and USO separately gives direct, potentially cheaper exposure to gold and oil individually. The best approach depends on whether you want single-commodity precision or broad diversification. This is educational content, not financial advice.
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