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Bitcoin ETF could catapult the world's most valuable digital token into the mainstream Image Credit: Shutterstock

US regulators have once again punted their decision on whether to approve a Bitcoin ETF.

The Securities and Exchange Commission said in a Wednesday regulatory filing that it will seek more public comment on a proposal to list a product on CBOE Global Markets Inc. It's not the first time this year that the SEC has delayed giving an answer to the legions of crypto advocates pushing for a way to trade the largest cryptocurrency in an exchange-traded fund format.

Crypto enthusiasts have long been frustrated by the agency's reluctance to sign-off on a Bitcoin ETF, a product that could catapult the world's most valuable digital token into the mainstream among institutional investors.

There were predictions earlier this year that the regulator would be more receptive under SEC Chair Gary Gensler, who once taught classes on digital assets at the Massachusetts Institute of Technology. But since he took the reins in April, the agency has continued to express concerns that crypto exchanges lack oversight. And it has laid out fresh warnings about the risks of mutual funds investing in Bitcoin futures.

As part of Wednesday's announcement, the SEC asked the public to weigh in on aspects of the Cboe proposal, which seeks approval of a VanEck Associates Corp. ETF. The SEC set deadlines into July and perhaps even August for people to respond.