Markets opened on a cautious note on Wednesday, November 4, with the Nifty 50 trading at 23,837.25, up 26.40 points or 0.11 per cent from its previous close of 23,810.85, while the Sensex opened at 76,853.11 against its previous close of 76,917.85, and was last seen at 77,071.67, up 153.82 points or 0.20 per cent. The muted start follows a sharp four-session rally that had lifted the Nifty by 370 points in the previous session alone.SBI, ITC lead gainers; technology stocks dragAmong the top gainers on the N ...