Stock Market Today: Dow to fall over 200 points, S&P 500 to slide from record after Trump's Canada tariff threat; Bitcoin surges to record.

Extreme Concentration in the S&P 500

History Says the Nasdaq Will Soar: 2 Artificial Intelligence (AI) Stocks to Buy Now, According to Wall Street

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Stock Market Today: Dow Futures Fall After Trump Threatens 35% Canada Tariffs — Live Updates

Stock futures fall after Trump unveils 35% tariffs on Canada starting Aug 1: Live updates