NYSE Reopens After 9/11

Date: September 17, 2001 • Location: New York City, United States

The New York Stock Exchange reopens for trading after the September 11 attacks, the longest closure since the Great Depression.

The New York Stock Exchange is an American stock exchange headquartered at the New York Stock Exchange Building in the Financial District of Lower Manhattan in New York City. It is the second largest stock exchange in the world by market capitalization, exceeding $30 trillion in January 2026. The NYSE is owned by Intercontinental Exchange, an American holding company that it also lists. Previously, it was part of NYSE Euronext (NYX), which was formed by the NYSE's 2007 merger with Euronext.