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Lehman Brothers, 2008

Nine hundred thousand trades, closed out at once

Lehman Brothers Holdings filed for bankruptcy on 15 September 2008 with about $639bn of assets, the largest bankruptcy in US history. It was counterparty to roughly 900,000 derivative transactions, and its failure was an event of default under nearly every ISDA it had signed. What followed was the largest close-out the market had ever run — bilateral counterparties valuing and terminating on their own terms, and a clearing house managing the cleared book through its default process. The two halves went very differently, and the difference reshaped the market.

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What the lesson covers

  1. What happened
  2. The derivatives book
  3. The close-out
  4. What it cost
  5. What it teaches

Key terms

Every key term, A to Z

In practice

The legacy is the market structure most desks now work inside: standardised swaps cleared through central counterparties with rehearsed default auctions, variation and initial margin on uncleared trades, close-out valuation procedures written down before they are needed, and the ISDA resolution stay protocols that stop counterparties terminating en masse when a large bank fails.

In the app, Lehman Brothers, 2008 carries a five-step lesson, a worked example and a bank of twelve questions drawn differently every sitting.

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