What is Barclays us agg bond tr us?

The Barclays U.S. Aggregate Bond Index (often referred to as the Bloomberg Barclays U.S. Aggregate Bond Index) is a broad-based benchmark that measures the performance of the U.S. investment-grade bond market. It includes various fixed-rate, taxable bonds, such as U.S. Treasuries, government agency bonds, corporate bonds, and mortgage-backed securities. The index is widely used by investors to gauge the performance of the bond market and serves as a benchmark for many bond mutual funds and ETFs.