Editing Stock market downturn of 2002 (section)

==Scale==
As of September 24, 2002, the Dow Jones Industrial Average had lost 27% of the value it held on January 1, 2001: a total loss of 5 trillion dollars. The Dow Jones had already lost 9% of its peak value at the start of 2001, while the Nasdaq had lost 44%. At the March 2000 top, the sum in valuation of all [[New York Stock Exchange|NYSE]]-listed companies stood at $12.9 trillion, and the valuation sum of all [[NASDAQ]]-listed companies stood at $5.4 trillion, for a total market value of $18.3 trillion. The NASDAQ subsequently lost nearly 80% and the [[S&P 500]] lost 50% to reach the October 2002 lows. The total market value of NYSE (7.2) and NASDAQ (1.8) companies at that time was only $9 trillion, for an overall market loss of $9.3 trillion.