In the aftermath of the September 11 attacks , the NYSE was closed for 4 trading sessions , resuming on Monday , September 17 , one of the rare times the NYSE was closed for more than one session and only the third time since March 1933 . On the first day , the NYSE suffered a 7.1 % drop in value ( 684 points ) , after a week , it dropped by 14 % ( 1370 points ) . An estimated of $ 1.4 trillion was lost within five days of trading . The NYSE was only 5 blocks from Ground Zero
September 11 attacks
September 11 attacks
New York Stock Exchange