Stock market today: The 30-share index experienced fluctuations before closing at 76,520.38, showing a gain of 115.39 points or 0.15 per cent. During trading, it reached a peak of 76,743.54, up by 338.55 points or 0.44 per cent. The NSE Nifty concluded at 23,205.35, advancing by 50 points or 0.22 per cent.