Karachi stock market witnessed mixed trend on third consecutive day as the benchmark 100 index lowered by 83 points on Thursday.The share market witnessed bullish trend at the start of the day, however, cautious behavior of the investors caused the market to go up and down. At one point, the 100 index lowered by 179 points but buying in some sectors helped the market recover. The KSE-100 index closed at 9159, down 83 points with trade volume of 226.2 million shares. Pak PTA remained volume leader with 33.4 million shares and share price of Rs 7.18, up Rs 0.50.