PSX stumbles after early optimism fades over Pak-India tensions / PSX jacks up record 9pc as ceasefire with India calms investors / PSX gallops to recovery after day of historic losses / PSX limps to recovery after day of historic losses / PSX makes recovery after day of historic losses / PSX takes record plunge amid security unrest / PSX witnesses bearish trend, loses 3,559 points / PSX plunges over 8,000 points amid India-Pakistan tensions / Bulls return to PSX as stock market stages strong recovery / IMF loan approval hopes lift PSX, reversing early losses