Microsoft Stock Drops 10% as AI Spending And Copilot Doubts Rattle Investors

Microsoft’s share price has dropped by roughly 10 percent over the past three months, erasing recent gains, as Windows Central reports. The decline reflects growing investor caution as enthusiasm around big tech AI investments cools and expectations reset.

Executives, including Satya Nadella, Brad Smith, and Judson Althoff, sold tens of millions of dollars’ worth of Microsoft stock during the quarter. While insider sales often follow preset trading plans, the scale and timing added to market unease during the share price slide.

The pullback also mirrors broader investor anxiety as the AI hype cycle across big tech begins to cool. Expectations for fast, transformative returns have softened, and while Microsoft continues to push Copilot+ PCs, some hardware partners, including Dell, have started distancing themselves from AI PCs.

AI data center spending raises red flags for investors

Microsoft’s aggressive push into AI infrastructure has become a central concern. The company spent an estimated $35 billion on AI data centers in a single recent fiscal quarter, a record level that has sparked debate about future profitability. Investors now question whether returns from AI services will arrive fast enough to justify the growing capital expenditure.

Microsoft also unveiled a five-point “Community First” plan aimed at addressing concerns around AI data centers. Online reactions, however, skewed skeptical, with critics ridiculing the initiative and questioning its real-world impact. Although Microsoft stated that its data centers will not increase U.S. household power bills, public trust remains limited.

Copilot struggles and rising competition add pressure

Public criticism intensified after comments from Donald Trump, who attacked the electricity demands of large data centers and their effect on local communities. Those remarks briefly pushed Microsoft’s share price down by an additional four percent.

It is also worth noting that real-world Copilot usage has generally shown few technical problems. A recent high-profile Copilot incident involving UK police highlighted reputational risks rather than widespread reliability issues with the AI itself.

At the same time, competition from Google has grown stronger. Google’s progress with its AI models and tighter control over the full AI stack across devices and services has shifted attention away from Microsoft’s Copilot-focused strategy.

Despite relatively smooth real-world Copilot performance in enterprise and regulated environments, consumer adoption remains weak. That imbalance, combined with cooling AI enthusiasm and heavy infrastructure spending, continues to weigh on Microsoft’s stock outlook.