The Dow Jones and S&P 500 were in negative territory after reversing lower Tuesday morning. Tesla drops on downgrade.

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Equity traders are back from their holiday break — and by some measures, they're busier than ever. The Nasdaq stock exchange was on track for record-setting trading volume on Tuesday as shares of ...

Nvidia Corp. Chief Executive Jensen Huang's CES keynote seems to have been a positive momentum driver for at least one chip stock — but not his own. Micron Technology Inc. shares are rallying 3.6% in ...