this article was automatically generated by barronscom using technology from automated insights with us stock markets set to open in two hours carvana cl a cvna was up 115 in premarket trading and molina healthcare moh was up 100 hca healthcare hca cdn imperial bank of comm cm and flex ltd flex were all posting gains of at least 4 invitation homes invh and mandiant mndt had posted declines falling 42 and 30 respectively meanwhile sp 500 futures were up 027  with futures for the dow jones industrial average rising 008 the sp 500 and the dow were up 239 and 147 respectively in the most recent regular trading session stocks in asia were mixed overnight with japans nikkei 225 index up 045 and chinas shanghai composite index down 034 us stock markets open for trading at 930 am et