5 major banks rigged $9trn bond market – lawsuitTraders at major financial institutions including Bank of America and Deutsche Bank AG colluded to rig the prices of bonds from government-linked organizations that were bought and sold on a $9 trillion market, a new lawsuit claims. Five big banks – Bank of America, Credit Agricole SA, Credit Suisse Group AG, Deutsche Bank AG, and Nomura Holdings – were named as defendants in the proposed class-action lawsuit, filed Wednesday by the Boston Retirement System pension fund for city workers.