Here's everything you must know before Monday's opening bell:
Investors will analyze earnings from Alphabet , T-Mobile and more.
Fresenius dropped its planned $5 billion takeover of generic drug-maker Akorn .
Southwest has canceled 40 flights a day since announcing its voluntary inspection program.
UBS disappointed investors with a tepid forecast for the year ahead.
U.S. stock futures pointed lower as bond yields rose.
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