The Pakistan Stock Exchange's KSE-100 index (the benchmark measure of Karachi's main bourse) closed down roughly 994 points, or 0.57%, on Tuesday, finishing at 172,642 after briefly touching an intraday low near 171,490. Analysts attributed the selloff to prolonged US-Iran tensions and recent Houthi attacks on Saudi energy infrastructure, which pushed Brent crude toward $99 a barrel — its highest since late July — adding cost pressure to Pakistan's import-dependent economy. Analysts noted that strong macroeconomic indicators and Pakistan's recent successful Eurobond issuance offer some buffer against the external shock, though investor sentiment remains fragile following similar losses the previous session.