Today's Pre-Market Stock Movers: NVDA, AMD, SNOW, BBY and More

$NVIDIA(NVDA.US)$ +28% ( The chipmaker reported blockbuster earnings. Nvidia said it expected a "giant record year" and guided for sales of $11 billion in the second quarter, more than 50% higher than analysts’ estimates.)

$Best Buy(BBY.US)$ +5% ( The company posted first-quarter earnings of $1.15 per share excluding items, topping the $1.11 expected by analysts, according to Refinitiv. Revenues of $9.47 billion came in below the $9.52 billion anticipated.)

$Carnival(CCL.US)$ +2.3% ( Citi upgrade rating to buy from neutral. The firm said Carnival is at a turning point on its balance sheet at a time when investors seem more interested in the cruise space.）

$C3.ai(AI.US)$$Palantir(PLTR.US)$ +14% and 10%, respectively ( The AI stocks rallied on the back of Nvidia's earnings, with C3.ai popping 14% and Palantir Technologies gaining nearly 10%.)

$Advanced Micro Devices(AMD.US)$$Taiwan Semiconductor(TSM.US)$ +9% and 7%, respectively ( The semiconductor stocks followed Nvidia higher in premarket trading.)

$Snowflake(SNOW.US)$ -13% (The company reported weaker-than-expected revenue guidance for the second quarter. However, Snowflake beat analysts' estimates for first-quarter earnings and revenue when it reported after the bell Wednesday, according to Refinitiv.)

$American Eagle(AEO.US)$ -20% ( The retailer said it expects second-quarter revenue to fall. American Eagle Outfitters also posted first-quarter earnings per share in line with estimates and revenue slightly above expectations.)

$Dish Network(DISH.US)$ -2.7% ( Citi downgraded Dish Network to neutral from buy on Wednesday. The Wall Street firm cited Dish's substantial capital needs combined with the drop in market value of its securities.)

$Dollar Tree(DLTR.US)$ -11% ( Dollar Tree reported shrinking margins for the first quarter. Gross profit fell 4.7% even as net sales rose 6.1%. The company's first quarter adjusted earnings per share of $1.47 was below analyst estimates of $1.52, according to StreetAccount.)