Microsoft shares rose 1.05% to $501.49 on Thursday as investors assessed a new long-term AI partnership with Saudi Arabia's HUMAIN and broader strength across software stocks. HUMAIN, an AI company backed by Saudi Arabia's sovereign wealth fund, will connect its Arabic-language ALLAM models to Microsoft's Foundry platform and 365 Copilot, helping businesses develop AI applications for Arabic speakers. The companies plan further work across models, software, hardware and infrastructure, with their technical and deployment teams working to move customers from experimentation to operational use. Separately, Reuters reported that Chinese startup Moonshot is discussing cloud distribution and revenue-sharing arrangements for its Kimi K3 model with Microsoft, Amazon and Google. Moonshot is seeking close to 30% of generated revenue, although data access, revenue splits and usage measurement remain unresolved. Software stocks also gained after Salesforce exceeded revenue and profit expectations and raised its forecast.