Check out the companies making headlines before the bell: Broadcom , Alphabet — Broadcom on Monday said it agreed to supply artificial intelligence chips for Google and signed an expanded deal with Anthropic to give the AI startup about 3.5 gigawatts worth of computing capacity from Google’s AI processors. Broadcom shares gained 3%, while Alphabet was slightly higher by 0.2%. Casey’s General Stores , Hologic — The convenience store operator will replace Hologic in the S & P 500 prior to the open Thursday, S & P Dow Jones Indices announced . Shares of Casey’s rose about 1%, while shares of Hologic have been halted due to the completion of its pending acquisition by Blackstone and TPG Global. Oil stocks — The group was mostly higher, with energy prices remaining elevated above $110 per barrel ahead of U.S. President Donald Trump’s threat to attack Iran’s civil infrastructure by 8 p.m. ET on Tuesday. Exxon Mobil was higher by 0.4%, as was Chevron . Health care stocks — A slew of companies bounced after the Center for Medicare & Medicaid Services finalized its proposed payment increase to privately run Medicare Advantage plans, which was higher than its initial proposal in January that kept payments flat and sent insurers’ stocks tumbling. Humana surged nearly 10%, while UnitedHealth jumped 6% and CVS Health advanced nearly 7%. — CNBC’s Michelle Fox and Davis Giangiulio contributed reporting
