Discount yield is a method to calculate the annualized yield on a security sold at a discount, such as U.S. Treasury bills. It provides an approximation of the return on investment based on the difference between the purchase price and the face value of the security.
A U.S. government promissory note issued by the U.S. Treasury with a maturity period of up to one year. T-Bills are sold at a discount to face value, which is paid out at maturity, providing interest income to the investor.
