Schwab U.S. Aggregate Bond Index Fund

The investment seeks as closely as possible, before fees and expenses, the total return of the Bloomberg US Aggregate Bond Index that measures the performance of the broad U.S. investment-grade bond market. The index is a broad-based benchmark measuring the performance of the U.S. investment grade, taxable bond market, including U.S. Treasuries, government-related and corporate bonds, mortgage pass-through securities, commercial mortgage-backed securities, and asset-backed securities that are publicly available for sale in the United States. The fund will invest at least 90% of its net assets in securities included in the index.