Bonds are investments in which you pay a certain price for a fixed amount of money in return for a promise to pay back that amount in a certain number of years. Bonds also give you the option to pay interest on them, which is why they are sometimes referred to as interest-bearing investments. Bond investment can be a rewarding way to invest in the stock market. Bonds are like savings accounts that pay a fixed rate of interest and are backed by the full faith and credit of the government.