The difference in the U.S. Stock and Bond Markets is striking. Although the total market value for stocks is slightly over twice that for bonds ($17 trillion versus 8.1 trillion), there are over 6 times the number of bond listings versus stock listings, yet the average daily volume in stocks is almost 10 times the average daily volume for bonds and the average daily trades for stocks is 625 times the average daily volume for bonds (25.2 million trades versus 40,280, respectively). Source: The Wall Street Journal