Stocks making biggest moves premarket: Tesla, Paramount and more

Check out the companies making headlines in premarket trading: Tesla — Shares rocketed more than 10% during premarket trading after the electric vehicle company said on Sunday that local Chinese authorities removed restrictions on its cars , raising expectations that Tesla's driver-assistance software Full Self-Driving would soon be available...

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SIG, CMG, MBLY, BBY and more

Check out the companies making headlines in midday trading. Signet Jewelers — Shares tumbled 11% after the jeweler issued first-quarter revenue guidance that missed Wall Street estimates. The company said it expects revenue in the range of between $1.47 billion and $1.53 billion, whereas analysts polled by FactSet forecast...

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