Yes There are stabilization funds in the American stock market. In September 2008, Lehman Brothers, the fourth largest investment bank in the United States, went bankrupt, causing the Dow Jones index in the American stock market to plummet and the global market to fluctuate violently. On September 14, 2008, the Federal Reserve and the top ten banks in the United States set up a $70 billion stabilization fund. By 2023, it has not been cancelled. It was established to provide financial guarantee for financial institutions with bankruptcy risk.