Charles Schwab has started offering commission-free trading to clients in order to expand its exchange-traded fund (ETF) business, ETF Trends reports. The commission-free trades have been provided to investors that used Schwab’s in-house brokerage accounts. As per the National Stock Exchange, the provider had $4.4 billion in assets by May 2011, up from $1.2 billion a year ago. Schwab has nearly $120 billion in ETF assets under management.

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