Charles Schwab’s exchange-traded fund assets rose by over 40% to $124 billion in the first half of 2011, Index Universe reports. Retail investors accounted for 38% of the firm’s total ETF assets at the end of the second quarter.

The growth rate of retail investors exceeded any other group, increasing nearly 70% on the year. In the U.S., total ETF assets stand at $1.135 trillion, up more than 12% from the end of 2010, according to data compiled by Index Universe.

Click here for the story from Index Universe.