Sensex, Nifty live updates on 22 December 2025: Christmas week likely to begin on positive note with strong gains. Gift Nifty at 26,175 signals a gain of about 150 points at open, as foreign portfolio investors have turned buyers in the last few days. During the last three trading days FIIs were buyers in the cash market with a total buy figure of Rs 3596 crores.Ā