Check out the companies making the biggest moves midday: Maplebear — The parent company of Instacart fell nearly 4% after Amazon said it's testing "ultra-fast" delivery of groceries in Seattle and Philadelphia. These deliveries take about 30 minutes or less, said Amazon. Boeing — The aerospace giant rose 8% after winning a $104.4 million U.S. Navy contract to repair displays in certain aircrafts. On top of that, the company issued positive free cash flow guidance for 2026. Solaris Energy Infrastructure — The data center energy provider gained more than 3% after Morgan Stanley initiated coverage with an overweight rating. "Generation equipment has been secured through 2028, the business model builds contracted cash flows, and the stock is pricing in only limited growth beyond 2028," Morgan

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