It’s official: Nvidia Corp. is worth more than Amazon.com Inc. The chip company hadn’t finished a trading session worth more than the e-commerce powerhouse in nearly 22 years, but it achieved the milestone Tuesday — after flirting with the feat a session earlier. Nvidia’s NVDA, -0.17% market value exceeded that of Amazon AMZN, -2.15% based on Monday’s intraday action, but Amazon closed out that session back on top. But while Nvidia and Amazon shares both fell Tuesday alongside broad market pressure, Nvidia’ ...