Bloomberg Anywhere Remote Login Bloomberg Terminal Demo Request


Connecting decision makers to a dynamic network of information, people and ideas, Bloomberg quickly and accurately delivers business and financial information, news and insight around the world.


Financial Products

Enterprise Products


Customer Support

  • Americas

    +1 212 318 2000

  • Europe, Middle East, & Africa

    +44 20 7330 7500

  • Asia Pacific

    +65 6212 1000


Industry Products

Media Services

Follow Us

U.K. Prosecutors Join U.S. Probe of JPMorgan London Whale Loss

U.K. prosecutors are working with U.S. authorities and British financial regulators as part of an investigation into a $6.2 billion loss on derivatives at JPMorgan Chase & Co.

The Serious Fraud Office, which is in charge of most U.K. white-collar crime enforcement, is “liaising with our U.S. counterparts” and the Financial Conduct Authority, spokeswoman Jina Roe said in an e-mail today.

U.S. prosecutors unsealed charges against London-based JPMorgan traders Javier Martin-Artajo and Julien Grout last week for allegedly attempting to hide trading losses caused by Bruno Iksil, the Frenchman known as the “London Whale” because his portfolio was so large.

Manhattan U.S. Attorney Preet Bharara said Aug. 14 that he was “hopeful” the men, neither of whom are in the U.S., would return to face the charges. Grout’s lawyers have said he’s in France, and Martin-Artajo’s have said he is away from his home in the U.K. on vacation.

The U.S. Securities and Exchange Commission, Commodity Futures Trading Commission, and the U.K. FCA are also probing the losses.

Please upgrade your Browser

Your browser is out-of-date. Please download one of these excellent browsers:

Chrome, Firefox, Safari, Opera or Internet Explorer.