Buying rally continued at the Pakistan Stock Exchange (PSX), with the benchmark KSE 100 index gaining over nearly 1,000 points during the opening hour of trading on Friday. At 9:50am, the benchmark index was hovering at 170,880.78 points, up by 968.83 points or 0.57%. On the index front, oil and gas exploration, automobile, cement, and chemical sectors emerged as key gainers. On Thursday, th