Definition of 'Discount Yield'
Discount yield is a measure of a bond's percentage return. Discount yield is most frequently used to calculate the yield on short-term bonds and treasury bills sold at a discount. This yield calculation uses a 30-day month and 360-day year to simplify calculations. Discount yield is calculated by the following formula:
Discount Yield = [(par value - purchase price)/par value] * [360/days to maturity]
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