Palantir, Rivian, Uber and more
Peter Thiel, co-founder and chairman of Palantir Technologies Inc., pauses during a news conference in Tokyo, Japan, on Monday, Nov. 18, 2019.Kiyoshi Ota | Bloomberg | Getty ImagesCheck out the companies making headlines in midday trading Monday.Palantir – Shares of the software company dropped more than 18% after Palantir's first-quarter earnings came in below expectations. The company reported 2 cents of adjusted earnings per share on $446 million of revenue. Analysts surveyed by Refinitiv expected 4 cents of earnings…