DeepSeek's rise could challenge the sustainability of Big Tech earnings growth, a key pillar of the bull market rally.

After the best two-year stretch for the S&P 500 (^GSPC) since the late 1990s, few on Wall Street are calling for an end to the bull market run, and this optimism serves as the key throughline in the ...

The S&P 500 (SNPINDEX: ^GSPC) is the preferred gauge for the entire U.S. stock market because it includes 500 large-cap ...

DeepSeek, a Chinese artificial intelligence (AI) startup founded in 2023, is gaining attention following the January 20th ...

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A cheaper, competitive AI model from Chinese artificial intelligence company DeepSeek sparked a sell-off in the S&P 500 (^GSPC) and Nasdaq Composite (^IXIC) on Monday as it challenged one of the key ...