KARACHI: Futures spreads decreased by 168 basis points during the outgoing week ended on April 5, 2013, to 7.71 percent. Trading activity on the futures counter witnessed negative trend as average daily volumes remained low by 26.0 percent to 19.34 million shares. Similarly, the average daily trading value witnessed bearish trend and remained under pressure by 3.5 percent to Rs1,797 million.