Sensex Jumps 1,200 pts, Nifty Reclaims 17,200; Key Factors Why … 4.10.2022 · Why is Stock Market Rising Today? Bulls came raging on the D-Street as indices reversed gear to post a rebound on October 4, buoyed by upbeat quarterly updates by India Inc and heavy buying in the US and Asian markets. The declining dollar and US bond yield also lifted sentiment. Sensex rallied over 1,100 points and Nifty was placed above the 17,100 mark.