Strategy Inc. shares rose as much as 2.8% in premarket trading Monday after the digital asset treasury company said it bought $962.7 million worth of Bitcoin from Dec. 1 to Dec. 7, marking its largest acquisition since July.

What began the year as one of the best trades in the stock market has, in a matter of months, turned into one of the worst.

Michael Saylor’s bet on Bitcoin has gone awry, punishing holders of leveraged ETFs

Rumors that a company may get the boot from a mainstream index can hurt shares