Grayscale did not respond immediately to a request for comment.

The SEC has rejected more than a dozen proposals for spot bitcoin ETFs over the past year, with much of its focus on the lack of any surveillance-sharing agreements with a regulated market of significant size relating to the underlying assets.

The price of bitcoin, the largest digital currency, is down about 70% from its high of around $69,000 in November.

(Reporting by Akriti Sharma in Bengaluru and John McCrank in New York; Editing by Leslie Adler)