Jay Cooke’s failed bank helped trigger the Panic of 1873 in the United States.
Jay Cooke & Company was a major American investment banking firm that had helped finance Union government borrowing during the Civil War. In 1873, it became heavily exposed to Northern Pacific Railway speculation. When the firm suspended payments on September 18, 1873, confidence in banks and railroad finance deteriorated rapidly.
The failure helped spark a financial panic, including the temporary closure of the New York Stock Exchange. The crisis spread through credit markets and contributed to a prolonged economic downturn in the United States and Europe, known in the United States as the Long Depression.
Railroad overbuilding, speculative investment, falling commodity prices, and international financial instability also mattered. Jay Cooke’s failure was therefore a catalyst within a broader system of vulnerabilities, rather than the sole cause of the depression.