FuelCell Energy surged 18.3% to $23.24 after announcing a 30-MW initial agreement with Fit Energy, with up to 350 MW more dependent on future Fit elections and deposits; most of the deal’s value remains contingent, and warrants for up to 12 million shares vest only if Fit commits to later phases, leaving investors focused on Fit’s next move and FuelCell’s ability to convert pipeline into funded orders.