Iren (NASDAQ:IREN), a vertically integrated data center operator previously specializing in Bitcoin (CRYPTO:BTC) mining, closed Monday at $50.33, up 9.34% on the day. Iren IPO'd in 2021 and has grown 106% since going public. Trading volume reached 52 million shares, coming in about 37% above versus its three-month average of 37.8 million shares.Monday's trading is reflecting renewed interest in crypto-exposed AI infrastructure plays, with investors watching Iren's Microsoft (NASDAQ:MSFT) AI contract and piv ...