During the 2008 stock-market crash, which index fell 777.68 points on September 29?

During the 2008 stock-market crash, the Dow Jones Industrial Average fell 777.68 points on September 29, 2008.

The decline was the largest single-day point drop in the Dow at that time. Investors reacted after the U.S. House of Representatives rejected the proposed Emergency Economic Stabilization Act, commonly associated with the $700 billion Troubled Asset Relief Program. The vote intensified fears that the financial system could suffer further failures.

The fall occurred during a broader crisis involving subprime mortgages, collapsing housing prices, frozen credit markets, and heavily leveraged financial institutions. Although the Dow’s point record was later surpassed, the September 29 plunge remains one of the most recognizable sessions of the crisis.

A point decline is not the same as a percentage decline: a 777-point move had a different proportional meaning from similarly sized moves in earlier decades. The Dow measures 30 major U.S. companies, while the S&P 500 covers a much broader share of the U.S. equity market.