The United State bond market, a financial market where participants can issue new debt, or buy and sell debt securities, known as the secondary market, shows that (as of 2017) the treasury holds 35.16% of the market, while corporate debt holds 21.75% and mortgage related revenue holds 22.60%.
The bond market (also debt market or credit market) is a financial market where participants can issue new debt, known as the primary market, or buy and sell debt securities, known as the secondary market. 35.16% Treasury According to the Securities Industry and Financial Markets Association (SIFMA), as of Q1 2017, the U.S. bond market size is (in billions): Corporate Debt 21.75% Mortgage Related 22.60% 
