
Microsoft shares have fallen 17% to 20% in June as investors scrutinize Big Tech AI infrastructure spending, while semiconductors and memory stocks outperform amid supply bottlenecks and stronger near-term demand.
Microsoft shares are down 17% in June in one account and about 20% in another, putting the stock on track for its weakest monthly performance since December 2000 and contributing to roughly $2.3 trillion in market value losses across the Magnificent Seven this month. More than $570 billion of Microsoft market value has been erased as investors question whether heavy spending on AI chips and data centers will generate timely returns and weigh the risk of AI-driven disruption. The selloff has widened performance gaps within technology, with Alphabet and Nvidia described in the older account as year-to-date winners even as the Philadelphia Semiconductor Index and memory-related stocks continue to rally on AI supply constraints and demand.