By TOI Tech Desk
Publication Date: 2026-01-29 20:09:00
Microsoft dragged down the benchmark with an 12% slide, which would be its worst day since March 2020. The company saw more than $400 billion wipeout in stock market valuation, which is the second-largest in history. Shares of the software giant were down 12% as of 1:20 p.m., their biggest intraday plunge since March 2020, erasing roughly $424 billion in market value. The only larger one-day valuation destruction in stock market history was Nvidia’s $593 billion rout in January last year after the launch of DeepSeek’s low-cost AI model. According to Bloomberg, the roughly 12% drop in Microsoft’s share price is among the worst in its history. Since it’s initial public offering in 1986, the stock has only seen a handful of days with bigger declines, including on Black Monday in 1987, during the dot-com bubble, and at the height of the Covid 19 fueled selloff in 2020. The software giant has also issued soft guidance on operating margin for the fiscal third quarter.
