Today's biggest winners and losers in the stock market.

On this episode of Stock Movers:

- FedEx (FDX) boosted its adjusted earnings per share guidance for the full year; the guidance beat the average analyst estimate.

-Five Below (FIVE) shares gain 8.4% in premarket trading after the retailer forecast net sales for the first quarter that beat the average analyst estimate. Analysts are positive about the company’s execution and note strong sales momentum.

-Gold miner Newmont (NEM) was the S&P 500's worst performer ahead of the opening bell, tumbling 5.4%. It came as bullion extended a dismal recent run, tumbling after Federal Reserve Chairman Jerome Powell signaled that the central bank wasn't prepared to look past the risk of the war in Iran triggering a flare-up in inflation.