The world's largest asset manager BlackRock has warned "growing concerns" around the spiraling $35 trillion U.S. debt pile that's predicted to drive "institutional interest in

Trillion-dollar asset manager BlackRock has filed an amendment for its spot Bitcoin ETF (exchange-traded fund) demanding Coinbase process BTC withdrawals for its fund within 12 hours amid growing concerns over the exchange’s on-chain settlement practices.

On Jan. 9, Nasdaq ISE filed with the SEC “a proposed rule change to list and trade options on exchange-traded product (“ETP”) shares that represent interests in the iShares Bitcoin Trust,” according to the order. The commission approved the proposed rule change, as modified by certain amendments, “on an accelerated basis,” the order said.

The U.S. Securities and Exchange Commission has approved listing and trading of options for asset manager BlackRock's spot bitcoin exchange-traded fund on the Nasdaq. Options trading for BlackRock's fund iShares Bitcoin Trust has been approved with ticker symbol "IBIT",

BlackRock has put forward an amendment for its BTC ETF fund because of concerns of investors about the on-chain settlement practices of Coinbase. The amendment involves the requirement to withdraw BTC within 12 hours from Coinbase.