WASHINGTON — The rules the Securities and Exchange Commission uses to govern exchange-traded funds were written in 2019. The industry they were meant to oversee now holds more than $16 trillion in assets, lists over 4,600 products, and includes funds tied to bitcoin, Solana, and electoral prediction markets that did not exist when regulators last updated the framework. On June 30, the SEC formally acknowledged the gap.
The agency opened a 60-day public comment period on a potential overhaul of its ETF regulations, seeking input on how to handle four categories of products that are testing the limits of current rules: crypto-asset funds, event-contract ETFs linked to prediction markets, single-stock strategy ETFs, and high-leverage products. According to Reuters, the review represents the most significant reconsideration of ETF oversight since the commission adopted Rule 6c-11 — the primary ETF framework — seven years ago.
The numbers explain the pressure. Net assets in U.S. ETFs stood at roughly $4 trillion at the end of 2019. They now exceed $16 trillion. The number of listed funds rose from approximately 1,900 to more than 4,600 over the same period. The pace of that growth accelerated sharply after SEC Chair Paul Atkins took office in April 2025 and began approving novel products at a rate the agency’s existing review mechanisms were not built to handle. Spot ETFs linked to Solana, Dogecoin, and Hype received approval in the months after Atkins arrived, extending a trend that began with bitcoin and ethereum spot funds before his tenure.
“Innovation in exchange-traded funds depends on a consistent, transparent, and efficient regulatory framework,” Atkins said in a statement. The request for comment is the mechanism through which that framework would be updated — or confirmed as adequate. It is also a recognition that approving new products at scale without updating the rules governing them creates regulatory exposure that compounds over time. As CoinDesk reported, the commission is now asking whether a standardized listing framework should apply to novel funds and whether those funds may need to register as investment companies under the Investment Company Act of 1940 — a categorization designed for mutual funds and closed-end vehicles, not trading-focused crypto or event-contract products.
The prediction-market dimension adds its own layer of legal complexity. In February 2026, more than two dozen event-contract ETFs were filed for registration by Roundhill Investments, GraniteShares, and Bitwise — funds designed to let investors take positions on outcomes including U.S. electoral results and major economic events through an ETF wrapper. As the broader prediction-market regulatory clash has developed across multiple agencies, the SEC’s review places those specific filings on a formal timeline rather than leaving them in procedural limbo. The investment-company categorization question is not academic for those funds: it would impose compliance requirements with no precedent for products structured around event contracts.
A procedural question embedded in the request for comment carries immediate practical stakes. Current rules give novel ETFs a 75-day review window, and a separate 60-day window, before they achieve automatic effectiveness — meaning they can begin trading without explicit SEC sign-off if regulators do not act. The agency is now asking whether those windows need to be extended. For fund managers who have spent months preparing products for registration, the answer determines how quickly they can reach investors. For regulators managing an approval pipeline that includes categories of products they have limited precedent to evaluate, the answer determines whether they have adequate time for the evaluation.
The crypto ETF industry’s own trajectory illustrates the speed of the shift. The funds now holding tens of billions in bitcoin and altcoin exposure were all approved under the current rule framework — the same one that critics argue lacks tools calibrated for the volatility and structural novelty of those products. Bitcoin’s trajectory and the scale of institutional and retail appetite for regulated crypto exposure have made the ETF approval function central to the industry’s expansion in ways that were not anticipated in 2019. Whether the same framework can accommodate the next generation of products — high-leverage single-stock funds, event-contract wrappers, private-asset ETFs — is precisely what the comment period is designed to test.
The 60-day window runs from the date of publication in the Federal Register. If the comments support formal rulemaking — a process requiring a separate proposal, another comment period, and a commission vote — any resulting rules would not take effect before 2027 at the earliest. The pending prediction-market ETF filings will remain in review during that period without a resolution date. Atkins has not indicated which specific changes he favors; the request for comment is a solicitation, not a policy statement. What the ETF industry hears in that distinction is that the rules it has operated under for seven years may be about to change. What replaces them has not yet been decided.
