TD Ameritrade's shares were up 2.4% in extended trading.

Bitcoin prices hit a record high of $17,428 on Friday, amid warnings that it was a bubble on the verge of bursting.

Cboe Global Markets launched its bitcoin futures contract on Dec. 10, just over a week ahead of rival CME Group, as the exchange operator takes the next step toward launching an exchange-traded fund based on the digital currency.

The first bitcoin futures trades kicked off on Sunday at 6 p.m. on the CBOE Futures Exchange.

Electronic brokerage firm Interactive Brokers Group earlier this week said it is offering bitcoin futures under the ticker symbol "GXBT" on the CFE and on the Chicago Mercantile Exchange (CME) from Dec. 18.