Thyssenkrupp stock up 20% despite hydrogen unit nucera revenue miss; restructuring progress, steel revival, and €10B submarine contract bid bolster outlook. Thyssenkrupp's stock has been on a tear — up nearly 20% over the past month — but last week's sell-off of 1.9% to €10.55 served as a reminder that not all parts of the conglomerate are firing on the same cylinder. The...