BOAZ WEINSTEIN didn’t know it, but he had just hooked the London Whale.

It was last November, and Mr. Weinstein, a wunderkind of the New York hedge fund world, had spied something strange across the Atlantic. In an obscure corner of the financial markets, prices seemed out of whack. It didn’t make sense.

Mr. Weinstein pounced.

via How Boaz Weinstein and Hedge Funds Outsmarted JPMorgan – NYTimes.com.