Investors are overreacting to today's Microsoft alliance news.C3.ai (AI 18.27%) stock rushed out of the gate Tuesday morning, gaining 13.2% through 9:50 a.m. ET after announcing a "strategic alliance" with software powerhouse Microsoft. Highlighting each company's respective strengths, artificial intelligence (AI) applications specialist C3.ai and artificial intelligence server farm operator Microsoft say they will work together "to enhance existing capabilities and introduce new innovations that help our m ...