Here's everything you need to know before Thursday's opening bell:
Tesla reported a quarterly loss of $3.04 a share, its largest ever.
Amazon introduced free two-hour Whole Foods grocery delivery in select locations via its Prime Now service.
Revenue at Fox's cable TV division rose 10%.
Former GE CEO Jeff Immelt was named chairman of Athenahealth .
U.S. stock futures pointed toward a mixed a mixed start.
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