Try the businesses making headlines in premarket buying and selling: UnitedHealth — Shares dropped 7% within the premarket Tuesday after the corporate introduced it was suspending its 2025 outlook attributable to higher-than-expected medical expenditures. UnitedHealth additionally introduced CEO Andrew Witty was stepping down, efficient instantly, for private causes. Stephen Hemsley will exchange Witty as chief govt. Rigetti Computing — Shares tumbled 11.4% after the quantum computing agency recorded $1.5 million for first-quarter income, under the $2.6 million consensus forecast from analysts polled by FactSet. Coinbase — Shares rallied 9.2% following the announcement that the crypto buying and selling platform will be part of the S & P 500 , taking impact earlier than buying and selling on Could 19. Coinbase will exchange Uncover Monetary Providers . Hertz World Holdings — The rental automotive inventory sank practically 9% after first-quarter outcomes got here in worse than anticipated. Hertz reported an adjusted lack of $1.12 per share on $1.81 billion of income. Analysts surveyed by LSEG had been searching for a lack of 97 cents per share and $2 billion in income. The corporate stated it had $1.2 billion in liquidity on the finish of March. Simon Property Group — The true property funding belief slid 2% regardless of first-quarter income topping expectations. Simon noticed $1.37 billion, whereas analysts predicted $1.36 billion, per LSEG. Beneath Armour — Shares of the athletic items and attire firm added 2.2% after Beneath Armour beat income expectations for its fiscal fourth quarter and lifted its adjusted earnings per share steering for the fiscal first quarter. Sea Restricted — The buyer web inventory surged 14.1% after adjusted earnings earlier than curiosity, taxes, depreciation and amortization, or EBITDA, for the primary quarter surpassed forecasts. Sea posted $946.5 million, beating the FactSet consensus of $710.9 million. The corporate reported $4.84 billion in income, lacking Wall Avenue’s prediction of $4.91 billion. Boeing — Shares moved 1.5% increased following a Bloomberg report that China has lifted its ban on Boeing deliveries. Home airways and authorities businesses are being advised this week that deliveries can resume, the report stated, citing folks conversant in the matter. Valero Power — Shares of the oil refiner ticked 1% increased on the heels of Goldman Sachs’ improve to purchase from impartial. Goldman stated Valero can profit from an bettering backdrop and extra engaging supply-and-demand traits. Calumet — The particular product producer jumped 2.2% following Financial institution of America’s initiation at a purchase score. The financial institution stated Calumet shares can see sizable upside by progress within the biofuels enterprise. — CNBC’s Pia Singh, Jesse Pound and Fred Imbert contributed reporting.