Gen Z men are still obsessed with Pokémon cards—using 'boy math' to argue that they'll beat Nvidia stock and the S&P 500. But there's a catch

Stock market today: Dow falls 250 points, S&P 500, Nasdaq retreat from record as Trump escalates tariff threats

AI kingpin Nvidia crowned as first public company with a $4 trillion valuation

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The S&P 500 Just Made a Bullish Crossover. Here's Why That Might Not Necessarily Mean a Big Rally Is Coming.