Buying rally continued at the Pakistan Stock Exchange (PSX) on Friday, with the benchmark KSE-100 Index gaining nearly 500 points during the opening minutes of trading. At 9:35am, the benchmark index was hovering at 184,992.43, up by 471.47 points or 0.26%. Buying interest was observed in key sectors, including chemical, commercial banks, fertiliser, oil and gas exploration companies, OMCs,