JPMorgan confirmed that a senior executive involved in the firm's $2bn loss is to resign.
It's been an embarrassing and costly time for the investment bank.
A single trader, Bruno Iksil — known as the London Whale — is believed to be responsible for very costly derivative trades.
Anchor Lisa Mullins speaks with Justin Urquhart-Stewart, director and co-founder of Seven Investment Management, about London's "financial whales".
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