Here's everything you need to know before Tuesday's opening bell:
Starbucks will close 8,000 stores for 4 hours Tuesday for anti-bias training.
Chinese authorities were set to approve Qualcomm's planned $44 billion acquisition of NXP Semiconductors .
Software company Verint Systems is in talks to buy NSO Group, an Israeli maker of cybersurveillance products.
Box office sales for "Solo: A Star Wars Story" came in well below expectations at $83.3 million.
U.S. stock futures pointed lower as European stocks tumbled amid political crisis in Italy.
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