The Barclays Capital Aggregate Bond Index
, which used to be called the "Lehman Aggregate Bond Index," is a broad base index, maintained by Barclays Capital, which took over the index business of the now defunct Lehman Brothers
, and is often used to represent investment grade bonds being traded in United States. Index funds
and exchange-traded funds
are available that track this bond index.
The Barclays Capital Aggregate Bond Index is a market capitalization-weighted
index, meaning the securities in the index are weighted according to the market size of each bond type. Most U.S. traded investment grade bonds are represented. Municipal bonds
, and Treasury Inflation-Protected Securities are excluded, due to tax treatment issues. The index includes Treasury securities
, Government agency bonds, Mortgage-backed bonds
, Corporate bonds
, and a small amount of foreign bonds traded in U.S.
The Barclays Capital Aggregate Bond Index is an intermediate term index. The average maturity as of December 31, 2009 was 4.57 years.
Many index funds and exchange-traded funds attempt to replicate (before fees and expenses) the performance of the Barclays Capital Aggregate Bond Index. Some examples of such funds include iShares
Barclays Capital Aggregate Bond Index (AGG), Thrift Savings Plan
Fixed Income Index fund, Vanguard
Total Bond Market Index Fund (VBMFX), and Fidelity
U.S. Bond Index Fund (FBIDX). Fund managers sometimes subdivide the different... Read More