Microsoft's stock closed up 4% at $359.49 on July 18, an all-time high after announcing pricing for Microsoft 365 Copilot service; MSFT is up ~50% in 2023 (Todd Haselton/CNBC)

Todd Haselton / CNBC:

Microsoft’s stock closed up 4% at $359.49 on July 18, an all-time high after announcing pricing for Microsoft 365 Copilot service; MSFT is up ~50% in 2023  —  – Microsoft shares rallied to an all-time high after the company announced pricing for its new Microsoft 365 artificial intelligence subscription service.