Stocks @ Night is a daily newsletter delivered after hours, giving you a first look at tomorrow and last look at today. Sign up for free to receive it directly in your inbox. Here's what CNBC TV's producers were watching on Tuesday and what's on the radar for Wednesday's session. AI trade cools off The Dow Jones Industrial Average , S & P 500 , Nasdaq and Russell 2000 pulled back from record levels today. One possible reason? Federal Reserve Chair Jerome Powell said stock prices appear "fairly highly valued." Powell also signaled that the rate-cutting path wasn't clear and that it was a "challenging situation." CNBC's Mike Santoli noted investors are taking profits in Nvidia and Oracle amid scrutiny over potential overcapacity. While the cap-weighted S & P 500 finished lower, the equal-wei

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