Stock trading volume slowdown

http://www.bloomberg.com/apps/news?pid=20601109&sid=aW7WhLt3wHqk

The CHART OF THE DAY shows 84 percent as many shares changed hands daily on the New York Stock Exchange between May 1 and July 20, compared with the average from Jan. 1 to April 30. That’s the steepest slowdown since at least 1989, according to data compiled by Harrison, New York-based research firm Bespoke Investment Group LLC.