New Delhi, Feb. 4 -- The Indian stock market extended its bull run for the third straight trading session on Wednesday, February 04, but finished with marginal gains as a sharp sell-off across tech stocks weighed on the key averages, which had logged their biggest intraday rally in Tuesday's session in over nine months, powered by India-US trade deal optimism.

Following a range-bound trade, the Nifty 50 concluded the session 0.19% higher at the 25,776 level, while the S&P Sensex closed at 83,817, up 0.09% from the previous close.

The broader markets, however, outperformed the benchmark indices, with the Nifty Midcap 100 rallying 0.6% and the Nifty Smallcap 100 advancing another 1.2%.

Tech stocks saw heavy bleeding in trade, with blue-c...