Buying interest returned at the Pakistan Stock Exchange (PSX), with the benchmark KSE-100 Index gaining over 400 points during the opening minutes of trading on Monday. At 9:50am, the benchmark index was hovering at 181,880.56, up by 450.54 points or 0.25%. Buying was observed in key sectors, including automobile assemblers, cement, commercial banks, oil and gas exploration companies, OMCs a