The Chicago-based trading group disclosed in a securities filing with the Exchange Commission on Tuesday that it owns nearly 1.3 million shares of MicroStrategy (MSTR), representing 13.5% of the company, or a dollar value of approximately $237 million at MSTR’s current price. of $188 per share. The owner of more than 132,500 bitcoins (BTC), MicroStrategy is sometimes seen as a bitcoin proxy, allowing customers – who for legal or other reasons cannot or will not have it – to place bets in the direction of crypto. MSTR suffered in bitcoin in 2022, its stock is down more than 70% as bitcoin fell from about $48,000 in late March to close the year at $16,500. With little gain for bitcoin so far in 2023, MicroStrategy shares are up 30% year-to-date, including a 7.7% rise in Tuesday trading.