Treasury bond
Personal Finance
Treasury bonds are long-term government debt securities with a maturity date of 30 years that are issued in denominations of $1,000.
You can buy any number of these bonds at issue in $1,000 increments, but not more than $5 million. Those purchases as well as sales can be made through a Tresaury Direct account. Existing bonds trade in the secondary market.
While interest on Treasury bonds is federally taxable, it is exempt from state and local taxes. Treasury bonds are considered among the most secure investment in the world, since they are backed by the federal government.
However, like all debt securities, they are subject to market risk. This means their prices change to reflect supply and demand.