Market Summary: PSX Edges Higher on Bullish Momentum The Pakistan Stock Exchange (PSX) closed Friday on a positive note as the benchmark KSE-100 Index rose by 1,478.66 points, or 0.79%,to 189,166.83 points from 187,688.16 in the previous session. The intraday swing highlighted cautious optimism among investors, who were reassessing valuations after a period of volatility.…