Microsoft On Track to Lose $100 Billion in Value as Widespread Outage Continues

By Joe Stonor

Microsoft shares fell sharply premarket amid an hours-long global outage in its software services.

The stock declined 2.7% premarket to trade around $509 a share, putting the company on track to lose over $103 billion in market value.

Microsoft 365 services including Outlook and Teams were down across the globe, impacting schools, government services and business from Australia to the U.S. The software giant first began investigating reports of problems on Thursday afternoon.

According to outage tracker Downdetector, tens of thousands of users have reported problems accessing Microsoft's email and online-meetings platform.

Microsoft said it had no indication that the outage was the result of a malicious cyber activity, In a series of posts on X, the company said it was pursuing a number of routes to restore services, and that fixes were starting to show signs of working after earlier struggling to take hold.

"We're seeing early stabilization and capacity improvements as recovery actions continue," the company said.

The outage impacted OpenAI and Anthropic, the artificial-intelligence model makers said.

"I think it's a reminder that concentration of critical cloud services in a few places creates systemic vulnerabilities," said Amati Global Investors fund manager Mikhail Zverev.

However, the impact of the outage will be short-lived, with a fix likely to come soon, Zverev said.

"I don't expect this one to de-rail transition of more workloads to the cloud over time," Zverev said.

Write to Joe Stonor at josephmichael.stonor@wsj.com

(END) Dow Jones Newswires

November 13, 2026 05:31 ET (10:31 GMT)