CrowdStrike stock price plummets amid worldwide IT outage

The stock price of cybersecurity company CrowdStrike plummeted on Friday amid a global IT outage that has affected clients worldwide.

Shares were down 11% at the close of trading on Friday. That performance marked a slight recovery from the morning hours, when the stock price had fallen as much as about 15%. The stock ended the day at its lowest level since May.

"The issue has been identified, isolated and a fix has been deployed," CrowdStrike CEO George Kurtz said in a post on X.

The outage affected CrowdStrike customers who use Windows products, Kurtz added.

Shares of Microsoft inched downward on Friday morning but did not experience the sell-off endured by CrowdStrike.

The outage hindered services at airlines in the U.S. to banks in Europe to a media company in Canada.

More than 2,500 flights were canceled in the U.S. on Friday, in part due to the outage. Alaska State Troopers confirmed 911 outages across the state. Several U.S. hospital systems were impacted, including medical facilities in Massachusetts, Cincinnati and Kentucky.

The New York Stock Exchange, however, carried out normal operations.

"NYSE markets are fully operational and we expect a normal open this morning," a spokesperson said early Friday morning.

ABC News' Ayesha Ali, Jenna Harrison Esseling, Josh Margolin, Zunaira Zaki and Taylor Dunn contributed to this report.