Today BSE Sensex closed at 18012 with little up 19 points, the index touched a high and a low of 18,110.39 and 17,933.94 respectively. While Nifty Index shut up at 5395, 8 points up, the index touched high and low of 5,422.60 and 5,367.45, respectively.

Nifty May 2011 futures closed at 5,393.90, at a discount of 0.95 points over spot closing of 5,394.85, while Nifty June 2011 futures were at 5,392.65 at a discount of 2.20 points over spot closing. The near month May 2011 derivatives contract expires on Thursday, May 26, 2011. Nifty May futures saw addition of 9.32% or 2.21 million (mn) units, taking the total outstanding open interest (OI) to 26.00 mn units.

For Nifty calls, 5400 strike price (SP) from the May series was the most active call with an addition of 0.36 million or 5.23%. Among Nifty puts, 5400 SP from the May month expiry was the most active put with an addition of 0.48 million or 7.43%.