What the company or idea is
Washington Mutual was a U.S. thrift holding company founded in 1889, operating as a federally chartered savings and loan association until its seizure in 2008.
How it actually makes money
Washington Mutual made money primarily through residential mortgage lending and deposit-taking — charging interest on loans and paying less on deposits.
What works
Its scale worked — it was the largest thrift in the U.S. before collapse — and its acquisition by JPMorgan Chase worked for the FDIC: the sale preserved insured deposits and avoided systemic contagion.
What does not
Its risk management did not work. It held $33 billion in assets but $8 billion in debt after the FDIC stripped its banking operations — proof that its balance sheet was illiquid, not insolvent, yet it could not survive a nine-day run.
What to take from it
A bank can be solvent on paper and still fail catastrophically when depositors lose confidence — because banking is a confidence game backed by regulation, not capital alone.
Is it worth your time
Yes. Its collapse reveals how regulatory capture, liquidity illusion, and off-balance-sheet risk aggregation can disable even a systemically large, long-established bank — without fraud or scandal needing to be present.
