home / study / business / finance / finance questions and answers / bond yields: stone sour corp. issued 20 year bonds two years ago at a coupon rate of 7.1 percent. ... Question: Bond Yields: Stone Sour Corp. issued 20 year bonds two years ago at a coupon rate of 7.1 percent.... Bond Yields: Stone Sour Corp. issued 20 year bonds two years ago at a coupon rate of 7.1 percent. The bonds make semiannual payments. If these bonds currently sell for 105 percent of par value, what is the YTM? Expert Answer Anonymous Anonymous answered this Was this answer helpful? 1 0 129 answers Using YTm calculator How to figure in Excel?