Big Banks Face Probe Over Non-Disclosure Agreements in Swaps, Clearing Businesses

A top financial regulator is asking large Wall Street banks for non-disclosure agreements in their swaps and clearing businesses to see whether they muzzle would-be whistleblowers.

The Commodity Futures Trading Commission has reached out to a number of banks, including JPMorgan Chase & Co., Bank of America Corp. and Citigroup Inc., according to people familiar with the matter. Its scrutiny expands on similar government probes that have swept up companies for allegedly using confidentiality agreements to discourage workers or clients from reporting violations.