The S&P 500 closed slightly lower Thursday after briefly hitting a new intraday high, as strong earnings from Microsoft and Meta Platforms failed to offset broader market weakness. At 3:08 p.m. ET, the Dow Jones Industrial Average dropped 330 points,

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.