Stock Market Today: Sensex, Nifty50 jumped as crude oil prices crashed over 8% on Thursday following the Democrats' sweeping victory in US midterms. Dalal Street brought an early Diwali bonanza for investors on Thursday, with Sensex soaring over 1,600 points and Nifty50 gaining 2% in early trade. The rally added over Rs 6.9 lakh crore to.