Here are some of the biggest movers of the day:
Palantir Technologies stock PLTR, +10.28% rose 6%, after gaining 10% on Friday when Wedbush started coverage of the software maker with an outperform rating and $25 price target.
Tupperware Brands TUP, +3.70% shares added 6%, continuing its meteoric rise. The stock has climbed 277% this month.
Shares of Yellow Corp. YELL, +24.02% slipped 2% to 69 cents after the Wall Street Journal reported it shut all operations on Sunday as the trucking giant prepares to file for bankruptcy, putting 30,000 jobs in peril, including 20,000 Teamsters.