Investors
Investors in fixed-income securities are typically looking for a constant and secure return on their investment. For example, a retired person might like to receive a regular dependable payment to live on, but not consume principal. This person can buy a bond with their money, and use the coupon payment (the interest) as that regular dependable payment. When the bond matures or is refinanced, the person will have their money returned to them.
Read more about this topic: Fixed Income