The Securities and Exchange Commission asked for comments from the public about a proposal from Nasdaq that would allow for options trading on BlackRock's spot bitcoin ETF. 

The comment period will last for 21 days, according to a filing posted on Friday. 

"The Exchange proposes to amend Options 4, Section 3, Criteria for Underlying Securities, to allow the Exchange to list and trade options on iShares Bitcoin Trust (the 'Trust') as a Unit deemed appropriate for options trading on the Exchange," the filing stated. 

James Seyffart, Bloomberg Intelligence ETF research analyst, said the SEC is moving more quickly than normal on the proposal.  

"The SEC has already acknowledged the 19b-4's requesting the ability to trade options on spot #Bitcoin ETFs," Seyffart …