The major IT outage caused by the CrowdStrike update is likely to be resolved by Friday evening ET. Polymarket bettors estimate the chances of this to be 89%.

CrowdStrike protects computers and networks from cyber attacks. The outage affected banks, airlines and emergency services. The US Federal Aviation Administration has issued grounding orders for most major airlines.

The chances that the outage was caused by a hacker attack are estimated at 9%. CrowdStrike shares fell more than 10% on NASDAQ.

The company's CEO said the problem has been identified and isolated, and a fix is ​​being implemented. The incident is not related to a cyber attack.

Bitcoin remained relatively stable, trading above $63,700, down 1.7%.