Which hedge fund's 1998 collapse forced a major private-sector rescue after the Russian financial crisis?

Long-Term Capital Management was the hedge fund whose 1998 collapse forced a major private-sector rescue after the Russian financial crisis.

Long-Term Capital Management, commonly called LTCM, used highly leveraged trading strategies involving bonds, derivatives, and relative-value positions. Its early returns were spectacular, but the fund had borrowed heavily and relied on markets behaving in historically familiar ways. The Russian government’s debt default and ruble devaluation in August 1998 triggered a flight from risky assets and caused many of LTCM's positions to move against it.

The Federal Reserve Bank of New York organized a private consortium of major financial institutions in September 1998. The banks injected capital and took control of the fund, avoiding an immediate disorderly liquidation. The Federal Reserve did not directly bail out LTCM, although it helped coordinate the rescue. The episode showed how leverage and interconnected derivatives could create systemic danger even when the institution itself was not a commercial bank. LTCM was eventually wound down, and its crisis became an enduring lesson in risk management.