There are three real structures behind the single shelf label, and they are governed by three different bodies of law. The first is the physically backed trust. The exchanges list these under a category their rulebooks call Commodity-Based Trust Shares, and the SEC's 2025 order approving generic listing standards for them describes the defining terms: the shares are issued by a trust, limited liability company or similar entity that, where applicable, is operated by a registered commodity pool operator under the Commodity Exchange Act and "is not registered as an investment company pursuant to the Investment Company Act of 1940", and the trust holds one or more commodities or commodity-based assets. The second is the futures-based product, which is generally a commodity pool: the CFTC defines that as "an investment trust, syndicate, or similar form of enterprise operated for the purpose of trading commodity futures or option contracts", where participants share profits and losses pro rata. The third is a genuine 1940 Act fund that runs a commodity strategy, which is why a blanket statement that no commodity product is a registered fund would be wrong.
What the reader gives up when the product is not a registered investment company is specific rather than vague. The Investment Company Act carries restrictions on transactions with affiliates, limits on suspending redemptions, limits on sales loads, custody and valuation requirements, and a board with statutory duties. A product outside the Act does not get those, and the trusts themselves generally say so in their annual reports. What the reader keeps is real too: the shares are registered securities, the sponsor files annual and quarterly reports, the listing exchange had to obtain permission to list them, and the antifraud provisions of the federal securities laws apply. It is a different package of protections, not the absence of one.
Tax follows the structure, which is the least intuitive part of the subject. For a product holding futures, the governing regime is IRC 1256: a section 1256 contract is treated as sold for its fair market value on the last business day of the taxable year, and any gain or loss is 60 percent long-term and 40 percent short-term regardless of how long the position was held. A regulated futures contract is a section 1256 contract by definition. For a product holding physical precious metal, the relevant point is the collectibles rate ceiling, which our page on collectibles investing covers. And for a product structured as a registered fund, ordinary fund taxation applies. Three wrappers, three answers, one shelf. How any of it reaches a particular holder, and on which tax form, is a question for that product's own tax disclosure rather than one that can be settled from the category name.
None of the structural discussion changes what the underlying exposure does. Commodities pay no income, so the whole return is price change less the costs of maintaining exposure, and a product that holds futures rather than physical goods carries the roll cost that comes with a market in contango. Our page on commodities works through that arithmetic, and it is the larger determinant of a long-run result than the wrapper is. The wrapper decides what protections and what tax reporting come with the position; the asset class decides what the position does.
The shelf does not sort these products by structure. The ones that are easiest to buy sit next to each other regardless of how they are built. Two tickers can appear side by side in the same screener, describe themselves in near-identical language, track the same metal, and be a commodity trust and a registered fund respectively, with different protections and different tax outcomes. The prospectus or the annual report says which is which, and it is the only place that does.