Swaps Probe Finds Banks Rigged Rate at Expense of Retirees

Recorded telephone calls and e-mails reviewed by the Commodity Futures Trading Commission show that traders at Wall Street banks instructed ICAP Plc brokers in Jersey City, New Jersey, to buy or sell as many interest-rate swaps as necessary to move the benchmark rate, known as ISDAfix, to a predetermined level, according to a person with knowledge of the matter. By rigging the measure, the banks stood to profit on separate derivatives trades they had with clients who were seeking to hedge against moves in interest rates. Banks sought to change the value of the swaps because the ISDAfix rate sets prices for the other derivatives, which are used by firms from the California Public Employees' Retirement System to Pacific Investment Management Co., ..