Meta Platforms also reported earnings after Wednesday’s close. Coming into the earnings, the option market had priced the straddle at 42 points, or 6% of the stock price. That straddle price was cheaper than six of the past 10 post-earnings moves by Meta — meaning that the odds were theoretically slightly in favor of buying the straddle.

Microsoft stock surged on better-than-expected financial results for its latest quarter and strong guidance. The beat was driven in part by double-digit revenue growth in the tech firm’s closely watched Azure cloud business.

The main indexes all opened higher Thursday on impressive Big Tech earnings, but momentum faded into the close.