Alan Clark (9 Aug 2011)
"9th of Av and stock market meltdown, S&P down 6.66%"

 
Sunset for Jerusalem on the 8th of Av which begins the 9th of Av was 7:30 PM their time.

http://www.timeanddate.com/worldclock/astronomy.html?n=110

The 9th of Av began at on August 8th at 12:30 PM Eastern Standard not long after the stock market which was down hundreds of points fell to it's lowest levels and closed at a minus 634 points!
The S&P fell 6.66%