The decline from the interim high on January 19th is 7.6%. A classic 10% correction would take us to 1035.
Today's decline was 3.11%. There have been 36 declines greater than 3% since the index peaked in October 2007. Thirty two occurred between the peak and the low on March 9th of last year. Four, including today, have occurred since the low.
The greatest decline over this timeframe was 9.03% on 10/15/2008.
The greatest advance of 11.58% occurred two days earlier on 10/13/2008.
Volume in today's selloff was the third highest of the year (corrected from the original post).
Note: The chart linked from the thumbnail above is a live chart, so the little version won't match after the next market open.
A few facts about today's S&P 500 selloff:
