The BSE Index closed at 15849, by 297 points, The index touched a high and a low of 16,256.38 and 15,765.53 respectively. Nifty Index shut up at4748, down by 92 points, the index touched high and low of 4,872.00 and 4,720.00 respectively.

Nifty September 2011 futures closed at 4,747.60 at a discount of 0.20 points over spot closing of 4,747.80, while Nifty October 2011 futures were at 4,759.35 at a premium of 11.55 points over spot closing. The near month September 2011 derivatives contract expires on Thursday, September 29, 2011. Nifty September futures saw addition of 19.76% or 4.26 million (mn) units, taking the total outstanding open interest (OI) to 25.87 mn units.

Among Nifty puts, 4700 SP from the September month expiry was the most active put with addition of 0.75 million or 17.23%. The maximum Call OI outstanding for Calls was at 5000 SP (5.67 mn) and that for Puts was at 4800 SP (5.11 mn). The respective Support and Resistance levels are: Resistance 4839.86-- Pivot Point 4779.93-- Support 4687.86.