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Amaranth's Mistake, JP Morgan's Scandal?

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We’re back on the Amaranth beat this morning, and as long-time readers know, once we get our jaws around something, it takes awhile for us to let it go. After writing a bit about Amaranth’s lawsuit against JP Morgan this morning, we decided to take another look at an item published on the suit by BreakingViews, a subscription-only financial news site. It’s written as if it’s uncovering a new strategic mistake by Amaranth but we can squint our eyes a little bit and see it as a bold attack on JP Morgan.
The thrust of the BreakingView’s piece was that Amaranth had blundered by using JP Morgan as its principal broker.
“In the wake of the 1998 near-collapse of hedge fund Long-Term Capital Management, many funds that used only one prime broker found those banks pulled their credit lines, forcing the funds out of business,” Breaking Views explains. “It’s now standard practice to use several prime brokers in the hope of avoiding such a fate, and to ensure no one institution can see a fund’s entire trading strategy. Amaranth itself had a dozen prime broker relationships. But it put the bulk of its trades for its main energy strategy through only one.”
Relying too heavily on JP Morgan may well have been a mistake on Amaranth’s part. But we expect that’s not an argument that JP Morgan’s prime brokerage business would like to hear made too loudly. After all, they hardly market themselves to clients with the warning: don’t give us too much business or we’ll hold you hostage and capitalize on knowledge of your strategies. But that’s exactly the danger Breaking Views is saying Amaranth ought to have recognized.
Double whammy [BreakingViews; subscription required]