The movement in volatility of BSE stocks reflected rising trend during the months of April to July 1998-99 and was higher than that observed during the same months in the previous year. Since the SEBI introduced number of volatility containment measures, the volatility during the following months continuously declined to 1.83 per cent by March 1999 from 5.26 per cent in June 1998. Moreover the volatility was substantially lower during the second half of 1998-99 than that during the same period in 1997-98. The volatility of Natex also witnessed declining trend. The Natex volatility which was 2.36 per cent in April 1998 increased to 5.92 per cent in June 1998 and thereafter gradually decreased to 1.67 by March 1999.(Tables 2.16). S&P CNX Nifty and CNX Junior Nifty also reflected the same trend.