Continental Illinois National Bank
Continental Illinois Bank Bailout
Estimated impact: $4.5B FDIC bailout
Continental Illinois, the seventh-largest U.S. bank, collapsed after a run on wholesale deposits. The bank had purchased $1B in loan participations from Penn Square Bank without adequate due diligence, anchoring to Penn Square's reported quality metrics.
Decision context
Whether to continue purchasing energy loan participations from Penn Square Bank based on reported loan quality rather than independent underwriting review.
Biases present in the decision
Toxic combinations
- Yes Committee
- Blind Sprint
Reference class base rates
Across all 146 curated case studies in our library:
Lessons learned
- Cognitive misering in loan participation reviews — accepting counterparty representations without independent analysis — creates hidden concentration risk
- Wholesale funding dependence makes banks vulnerable to confidence-driven runs
- The phrase "too big to fail" entered the regulatory lexicon from this case, revealing systemic risk blind spots
Source: FDIC History of the Eighties, Vol. 1, Ch. 7: Continental Illinois (1997) (Case Study)
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