London, March 17, 2026, 14:55 GMT HSBC Holdings Plc’s New York-listed shares rose 1.3% to $81.38 on Tuesday after Bloomberg News reported the bank was seeking at least $1 billion through additional tier 1, or AT1, dollar debt. AT1 securities are the riskiest layer of bank capital, designed to absorb losses if a lender runs into trouble. (Bloomberg.com) That matters because HSBC has turned into a market readout on Gulf risk. JPMorgan said last week HSBC and Standard Chartered were the most exposed major European banks to the Middle East, with HSBC’s regional lending exposure at about $23 billion, or