Key TakeawaysThe S&P 500 edged less than 0.1% higher on Tuesday, Dec. 3, as an unexpected uptick in job openings suggested strength in the labor market.Palantir Technologies jumped after the software firm said it had received FedRAMP High Authorization for its full lineup of cloud offerings.Microchip Technology announced a plant closure and restructuring plan, and shares of the chipmaker tumbled. Major U.S. equities indexes were mixed as fresh data showed an uptick in job openings and a slowdown in layoffs ...