Michael Saylor’s Strategy, formerly known as MicroStrategy, is facing one of its biggest tests yet has tumbled by more than 55% since the year started in the stock market, per data from Google Finance.

Strategy, the self-styled Bitcoin treasury company that until recently was known as MicroStrategy, said it acquired $1.99 billion more of the cryptocurrency with the proceeds from last week’s convertible bond sale.

MicroStrategy disclosed in a form filed with the U.S. Securities and Exchange Commission that it had bought more than 20,000 digital tokens after a week without any purchases. The software company said it acquired 20,