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Stocks making the biggest moves midday: AMD, GameStop, Signet Jewelers & more

Fred Imbert

Shares of Signet Jewelers rose 0.5 percent after the diamond retailer reported better-than-expected quarterly results. Signet reported earnings of $3.96 per share, 14 cents higher than expected, and revenues of $2.155 billion, $11 million higher than expected. Verizon VZ — Shares of Verizon Communications rose 0.6 percent — erasing earlier losses — after the telecommunications company announced it will be activating its 5G mobile network in Chicago and Minneapolis .