Today markets opened gap up and lost all strength to close around the day’s low. Nifty closed 18 points lower below the closing level of last trading session at 18,297 level. S&P BSE Sensex also closed nearly flat, 35 points lower at 61,904 level. Nifty Midcap 100 and Nifty Small cap 100 witnessed profit booking on higher levels but somehow it managed to close 0.3 per cent and 0.5 per cent higher.