Nvidia’s (NASDAQ:NVDA) ascent to a $4.3 trillion market capitalization has cemented its status as a titan in the tech world and the world’s most valuable company, driven by its unrivaled dominance in artificial intelligence (AI) chip production.

A sharp increase in market value for two major technology giants, driven by their aggressive investment plans, gives me an itchy raised eyebrow. Microsoft and Meta experienced a combined boost of half a trillion dollars in market capitalization within just ten minutes.

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.