Snowflake (SNOW): Shares surged 38% premarket after the cloud-software company lifted its full-year outlook and struck a $6 billion deal with Amazon (AMZN) to access its chips. Amazon's shares ticked slightly lower premarket.

Salesforce (CRM): The enterprise software company recorded higher profit and sales in the first quarter, but its revenue outlook for the current period came in just short of analyst estimates. Shares dropped 2% premarket.

Micron Technology $(MU)$: Shares of the memory chip maker retreated premarket, following a blistering rally that sent its market capitalization doubling to $1 trillion in just 48 days.

Dell Technologies $(DELL)$: Shares rose more than 4% premarket after the technology company received a $9.69 billion contract from the Pentagon.

Marvell Technology $(MRVL)$: The semiconductor company recorded a smaller profit in its latest quarter due in part to acquisition costs, but revenue surged as its data-center business boomed. Shares slipped premarket.

Dollar Tree $(DLTR)$, Hormel Foods $(HRL)$ and Costco Wholesale $(COST)$ are among the companies due to report earnings today.