The BSE benchmark Sensex was trading 7 points in green at 18,760 a short while ago. Earlier, the 30-share barometer added over 56 points, to trade at over 18,809, its highest level since July 2011, with stocks of power, FMCG, realty and IT sectors leading the rise.The index had gained almost 404 points on Friday.The Nifty at the National Stock Exchange gained 6 points to 5,697.