Zero-coupon bonds (also discount bonds or deep discount bonds) are debt securities. It is a form of bond that has no coupon. Yield is the difference between the purchase price of the bond and its nominal value. This type of bond is very important information for financial markets because it is easy to determine from it the time structure of interest rates.
Zero-coupon bonds in practice: A bond can be used both by the issuer to obtain additional funds, and, on the contrary, as a financial investment, if we want to evaluate the available financial resources.