As pressure mounts against HSBC Holdings for purported widespread violations of U.S. regulations, the U.K.-based bank may find it has little wriggle room to negotiate itself out of a costly settlement, say analysts. The bank, which moved its headquarters from Hong Kong to London in 1992, is in talks with U.S. officials over possible regulatory infractions involving anti-money laundering (AML) regulations, sanctions, broker-dealer rules, foreclosure practices, tax-related issues and the potential manipulation of London interbank offered rates, according to its latest regulatory filing, released Monday. Taken together, the multiple investigations "make it a lot harder at the negotiating table" for...