Microsoft stock rose 3.7% on Friday after the company unveiled a major Copilot overhaul, even as the U.S. 10-year Treasury yield briefly climbed to 5.23%, its highest level since 2007. That combination matters because high Treasury yields are normally a direct problem for expensive technology stocks. Higher risk-free rates reduce the present value of future earnings and give investors a more attractive alternative to equities. Microsoft’s rally showed that, at least for now, investors are still willing to overlook that pressure when the AI growth story looks strong enough. Microsoft’s official Copilot announcement introduced three major capabilities: Home, Code and Autopilot . Code lets users build apps and workflows using the same underlying technology as GitHub Copilot, while Autopilot is designed as a persistent AI agent that can continue working without repeated prompts. Microsoft Rallied While the Bond Market Was Flashing a Warning The move came during an unusually difficult rate backdrop. The benchmark 10-year Treasury yield reached 5.2297% intraday Friday , while long-term borrowing costs remained near multi-decade highs. Yet Microsoft still gained 3.7%, Qualcomm rose about 4%, Dell added roughly 5%, and the broader S&P 500 finished 0.5% higher. That is the opposite of the relationship investors normally expect. We explained why higher Treasury yields usually hurt AI and technology stocks : companies valued on profits far into the future are particularly sensitive to changes in discount rates. The effect has already been visible this month. The S&P 500 fell when the 10-year yield first pushed back above 5% , while investors have increasingly identified the bond market as one of the biggest risks to equities. AI Earnings Expectations Are Beating the Discount-Rate Problem The simplest explanation is that investors currently see AI as an earnings story powerful enough to offset some of the valuation pressure from bonds. Microsoft is no longer selling only a chatbot. The new Copilot strategy pushes AI deeper into Word, Excel, PowerPoint, Teams, coding and persistent enterprise agents, while adding usage-based billing for more advanced workloads. That potentially gives Microsoft several ways to monetize AI without depending on a single product. The broader market has shown the same pattern. Coinpaper’s latest look at the S&P 500 holding up despite bond pressure found AI-linked stocks repeatedly absorbing the shock from yields above 5%.
