Visitors at the Nvidia stand at the 2022 Apsara Conference in Hangzhou, China, Nov 3, 2022.

Check out the companies making headlines in midday trading.

Nvidia — Shares of the chipmaker and artificial intelligence beneficiary popped 3%, building on its recent gains on the heels of a blowout quarter. The moves pushed Nvidia's market value briefly above $1 trillion. Other chipmakers with AI ties also gained. Broadcom pared earlier gains to close 1.2% lower.