Investors buying stocks with borrowed money suggests confidence that the market will keep rising. If only that were true.

IBM and Advanced Micro Devices created tailwinds for the main indexes after scoring a major quantum-computing win.

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Exchange-traded funds that hold stocks linked to the artificial-intelligence theme were jumping Friday, beating the technology-heavy Nasdaq Composite amid a broad U.S. stock-market rally. The Roundhill Generative AI & Technology ETF was up 2.

Netflix stock dragged other techs lower, dropping some 10% after the streaming giant's earnings missed expectations, thanks in part to a Brazil tax dispute. Shares in Mattel also

Economists say AI spending has kept the economy out of recession. When it slows, the effects could be widespread.

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Investors are weighing lackluster earnings from Tesla and rising oil prices after President Trump hit Russia with sanctions.

The Buffett indicator has accurately predicted past market downturns and is now at its highest level ever. The S&P 500 Shiller CAPE ratio has predicted multiple market crashes and is now at its second-highest level ever.

Mark Cuban warned that forcing billionaires to sell their stocks would crash markets and wipe out the savings of millions of Americans.