Stock Market Update: Rivian Soars, UPS and Microsoft Tumble, and Other Notable Movers

Rivian's stock rose after Amazon announced plans to use the company's electric vehicles for last-mile delivery in Europe. Moderna's stock also saw an increase. Meanwhile, UPS shares fell as negotiations between the company and the Teamsters union collapsed. Wolf stock surged after signing a wafer-supply agreement with Renesas Electronics, while Generac shares declined.