KARACHI: The Pakis­tan Stock Exchange (PSX) endured a sharp sell-off on Monday, as escalating geopolitical tensions in the Middle East—sparked by reported US airstrikes on Iranian nuclear facilities and Tehran’s threat to close the Strait of Hormuz—sent shockwaves through global markets, triggering panic selling and wiping out more than 3,800 points from the benchmark KSE-100 index.

According to Topline Securities Ltd, the index........

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