And with Microsoft shares up by 9% and Meta gaining 11% before the open, the S&P 500 would have a hard time being anything but up today. In fact, that index is gaining nearly 1% in premarket futures trading. The Nasdaq, of which both Microsoft and Meta are also members, is up more than 1%.

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.

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