Stock market live Wednesday: Stocks slip, stimulus uncertainty lingers, DoorDash soars 85% in debut

This is a markets live blog for CNBC PRO subscribers that will be updated throughout the day.

The major averages fell on Wednesday after hitting fresh record highs as traders assessed the prospects of additional fiscal stimulus being passed before year-end. Hopes over the U.K.'s Covid-19 vaccine rollout and signs of progress over U.S. stimulus talks helped support sentiment on Wednesday, but a slide for tech stocks weighed on the market in afternoon trading.