The U.S. Securities and Exchange Commission has launched a formal public-comment review of exchange-traded funds that go well beyond plain-vanilla index products, a category that now includes crypto-linked wrappers, leveraged and inverse stock funds, private-asset vehicles, and event-contract structures. The agency framed the move as a fact-finding exercise rather than a ruling on any specific filing.

The regulator published the request in SEC release 33-11426 and announced it through press release 2026-60, inviting market participants, issuers, and retail investors to weigh in on whether current investor-protection and disclosure standards are adequate for these increasingly popular products. The comment request also appeared in the…