Mumbai, June 17 (IANS) The 30-scrip Sensitive Index (Sensex) on Wednesday opened on a negative note during the morning session of the trade and then turned positive.The Sensex of the BSE opened at 33,438.31 points and touched a high of 33,700.48 points. The Sensex touched a low of 33,332.96 points.On Tuesday the Sensex closed at 33,605.22 points.The Sensex is trading at 33,668.72 up by 63.50 points or 0.19 per cent.On the other hand, the broader 50-scrip Nifty at the National Stock Exchange (NSE) opened at 9,876.70 after closing at 9,914.00 points.The Nifty is trading at 9,862.30 points in the morning. --IANS vj/dpb