with us stock markets set to open in two hours viacomcbs cl a viaca was up 47 in premarket trading and aurora innovation aur was up 36 novavax nvax targa resources trgp and envista holdings nvst were all posting gains of at least 3 amer homes 4 rent cl a amh and bentley systems bsy had posted declines falling 87 and 82 respectively meanwhile sp 500 futures were up 050  with futures for the dow jones industrial average rising 076