IREN Jumps 6% but Then Gives Up Gains as Microsoft Accepts Horizon 1; TeraWulf Ticks Up, Cipher Digital Drops 5%
IREN (NASDAQ:IREN) shares jumped 6% to $45.26 after Microsoft (NASDAQ:MSFT) formally accepted Horizon 1, the first of four data centers at IREN's Childress, Texas campus, but gave up gains to trade un…