Biology of Business

Lehman Brothers

TL;DR

investment bank, Lehman Brothers collapsed in September 2008 - the largest bankruptcy in U.S.

Investment Banking · Founded 1850 · Defunct 2008

💥 Necrosis Chaotic collapse

By Alex Denne

The fourth-largest U.S. investment bank, Lehman Brothers collapsed in September 2008 - the largest bankruptcy in U.S. history ($691 billion in assets). The extinction resulted from overexposure to real estate, insufficient liquidity buffers, and failure to secure rescue during the 2008 financial crisis.

Founded in 1850, Lehman was a major investment bank in underwriting, trading, and asset management. In the 2000s, Lehman aggressively expanded into mortgage-backed securities and real estate, funding subprime mortgages and holding $80-100 billion in mortgage-related assets.

Lehman's leverage ratio was 31:1 (2007) - far higher than peers at 20-25:1. When the housing market collapsed and credit markets froze, Lehman couldn't access short-term credit and had no cash buffer. Unlike Bear Stearns (rescued by JPMorgan) or Goldman Sachs and Morgan Stanley (converted to bank holding companies), Lehman received no government bailout.

Cautionary Notes on Lehman Brothers

  • 31:1 leverage ratio - small asset losses wiped out equity
  • Relied on short-term funding with illiquid assets
  • Overexposure to single sector (real estate)

How It Ended: Catastrophic Failure

Lehman Brothers' death was catastrophic necrosis triggered by an external shock the organization couldn't absorb. When the housing market collapsed, Lehman's 31:1 leverage ratio meant small asset write-downs wiped out equity entirely. The weekend of September 13-14, 2008, desperate negotiations for rescue failed - Barclays and Bank of America walked away. Unlike Bear Stearns (rescued via JPMorgan) or AIG (government bailout), no one caught Lehman. Monday morning, the largest bankruptcy in U.S. history began. The collapse triggered a global credit freeze, panic selling, and the near-death of the entire financial system. Like an organ failing and releasing toxins that damage everything around it, Lehman's necrosis spread systemically - destroying Merrill Lynch (forced sale to Bank of America), nearly killing Morgan Stanley and Goldman Sachs, and requiring $700 billion in TARP bailouts to stop the cascade.

Like cellular necrosis, this was an uncontrolled death. External shocks, internal failures, or cascading crises overwhelmed the organization's defenses, leading to chaotic collapse and widespread damage.

Key Facts

1850
Founded

Related Mechanisms for Lehman Brothers

Related Organisms for Lehman Brothers

Related Frameworks for Lehman Brothers

Related Research for Lehman Brothers

Tags