DealBook: London Whale Said to Leave JPMorgan

By Felix Salmon: John Carney has been plugging away at what on earth Bruno Iskil, the so-called London Whale, might be doing with his reported $100 billion bet on an obscure off-the-run CDX index.

By CFA Institute: By Ron Rimkus, CFA

NEW YORK (Reuters) - A bankruptcy judge on Wednesday gave creditors of Lehman Brothers the green light to subpoena former JPMorgan Chase & Co trader Bruno Iksil, the so-called "London Whale," in an $8.6 billion lawsuit against the bank, a Lehman spokeswoman said.

By Nick Bro

NEW YORK (Reuters) - The North American head of JPMorgan Chase & Co's troubled Chief Investment Office, Irene Tse, is leaving the company, an internal memo said on Monday. Tse told the firm she was resigning to focus on "entrepreneurial ventures," according to the memo from Chief Operating Officer Matt Zames. Tse had been working for the past several months on JPMorgan's overhaul of the CIO, the memo said. Tse's European counterpart, Achilles Macris, oversaw the desk where trader Bruno Iksil, known as the "London Whale," built up derivatives positions that have cost the bank at least $5. ...

Javier Martin-Artajo supervised Bruno Iksil, the so-called “London Whale” whose outsize positions prompted the loss.

Regulators are trying to clamp down on rogue traders like JPMorgan Chase's Bruno Iksil, nicknamed the London Whale, who amassed large positions in credit derivatives as part of a complex trading strategy that eventually soured.