Constellation Energy Corp. is nearing an acquisition of Calpine Corp., people familiar with the matter said, in what would be one of the biggest ever deals in the power generation sector.

Canada’s largest banks may be the next group to walk away from the industry’s biggest climate-finance alliance.

Comark Holdings Inc., which owns apparel brands Ricki’s, Cleo and Bootlegger, and with UCG Canada Holdings Inc., which operates as clothing brand Frank and Oak, both made court applications in recent ...