Fixed income securities are debt securities that provide credit rights, represent a certain amount, generate periodic income, are issued in series, have the same wording, and are used as investment instruments.
Fixed income securities guarantee a certain return when they are held until maturity. Therefore, the investor knows how much interest income he/she will receive at the end of the maturity period, as soon as he/she invests. Fixed income securities can be divided into two subgroups as public and private sector securities according to the nature of the issuing institutions.