Returns from investing in debt securities include:

• Coupon interest: The issuer has to pay coupons, usually twice a year, to the bondholders. Upon maturity, the principal of face value will be paid along with the last coupon.
• Discount: It is the difference between the face value and the sales price when securities are sold below their face value.
• Capital gain or loss: Capital gain or loss may occur if a security is sold prior to its maturity.