Today's Morning Movers and Top Ratings: GILD, NVDA, DRI, NKE and More

$Nike (NKE.US)$ Oppenheimer raised Nike's stock rating from Perform to Outperform. Shares increased by 1.29% in premarket trading.

$Amazon (AMZN.US)$ 's stock increased by 0.2% following reports of the company's plans to overhaul its Alexa service, aiming to transform the money-losing venture by incorporating a conversational generative AI and offering two levels of service.

$Gilead Sciences (GILD.US)$ ' shares went up by 2.8% as the biotech firm announced that its experimental medicine for the prevention of HIV demonstrated 100% efficacy in a pivotal late-stage trial.

$CarMax (KMX.US)$  saw its stock increase by 1% due to the used vehicle retailer reporting first-quarter earnings that were stronger than anticipated, despite a 33% decline, while noting that its sales fell short of expectations.

$NVIDIA (NVDA.US)$ 's stock fell by 1.83% after tech investor Paul Wick of Seligman Investments reduced his stake in the company, despite the stock having nearly tripled in value this year and briefly becoming the largest company by market capitalization in the world.

$Darden Restaurants (DRI.US)$ Stifel Maintains Buy on Darden Restaurants, Lowers Price Target to $180. Shares fell by 1.48% in premarket trading.

$Boeing (BA.US)$ 's shares dipped by 0.2% amidst reports that the aerospace giant is close to finalizing a deal to repurchase Spirit Aerosystems, its former subsidiary, which saw its shares rise by 4.1%.