Which 1998 hedge fund collapse threatened the financial system and prompted a private rescue organized by major banks?

Long-Term Capital Management was the 1998 hedge fund whose collapse threatened financial stability and prompted a private rescue organized by major banks. The fund used highly leveraged trading strategies based on mathematical models and relative-value opportunities.

LTCM included prominent finance professionals and Nobel Prize-winning economists Myron Scholes and Robert C. Merton. Its positions were designed to profit from small price differences, but the Russian financial crisis and other market shocks caused those differences to widen dramatically.

By September 1998, the fund faced enormous losses and a severe liquidity problem. The Federal Reserve Bank of New York helped coordinate a private consortium of financial institutions, which injected capital and took control of the portfolio. The U.S. government did not directly provide the rescue money.

The episode illustrated how leverage and interconnected counterparties could turn a single institution's losses into a broader market danger. It also encouraged renewed debate about hedge-fund transparency, derivatives, and systemic risk.