(Bloomberg) -- Microsoft Corp. hit a new all-time high after the software giant hired OpenAI co-founders Sam Altman and Greg Brockman to lead its new in-house advanced artificial intelligence research team. Most Read from BloombergMicrosoft Ends Weekend of OpenAI Drama With Coup of Its OwnThe Doomed Mission Behind Sam Altman’s Shock Ouster From OpenAIOpenAI Leaders' Efforts to Bring Back Altman Reach Impasse Over Board RoleOpenAI’s Murati Aims to Re-Hire Altman, Brockman After ExitsAltman Sought