Buying interest returned at the Pakistan Stock Exchange (PSX), with the benchmark KSE-100 Index gaining over 1,000 points during the opening minutes of trading on Wednesday. At 9:58am, the benchmark index was hovering at 166,176.01, up 1,024.37 points or 0.62%. Buying was observed in key sectors, including automobile assemblers, cement, commercial banks, oil and gas exploration companies, OM