Positive sentiments returned to the Pakistan Stock Exchange (PSX), with the benchmark KSE-100 Index gaining over 500 points during the opening minutes of trading on Wednesday. At 9:35am, the benchmark index was hovering at 161,502.29, a gain of 567.16 points or 0.35%. Buying interest was observed in key sectors including automobile assemblers, cement, commercial banks, fertiliser, oil and ga