Schwab has expanded its line-up of exchange traded funds with the introduction of a mid-cap ETF and REIT ETF.

The Schwab U.S. Mid-Cap ETF (SCHM) tracks close to 500 stocks in the Dow Jones U.S. Mid-Cap Total Stock Market Index.  The fund has an expense ratio of 0.13% and top holdings include Alexion PharmaceuticalsBorg WarnerCarmax and Chipotle Mexican Grill.

The Schwab U.S. REIT ETF (SCHH) tracks 82 securities in the Dow Jones U.S. Select REIT Index.  The fund’s expense ratio is 0.13% and top holdings include Avalon Bay CommunitiesBoston Properties,Equity Residential and HCP.

Schwab-managed ETFs can be bought and sold commission-free online in Schwab accounts.

For more ETF investing choices, see the list of Schwab ETFs.