SunPower (NASDAQ:SPWR) stock has continued its dramatic descent after a letter to dealers halted new lease installations and shipments. The stock, which surged during the pandemic, rising above $50 a share, is now hovering around the $1 mark. It has fallen around 90% in the last 12 months. The company is said to have notified dealers that it will no longer provide support for new leases, installations, or product shipments.