tanner-unf corporation acquired as a long-term investment $310 million of 6.0% bonds, dated july 1, on july 1, 2021. company management has the positive intent and ability to hold the bonds until maturity. the market interest rate (yield) was 9% for bonds of similar risk and maturity. tanner-unf paid $280.0 million for the bonds. the company will receive interest semiannually on june 30 and december 31. as a result of changing market conditions, the fair value of the bonds at december 31, 2021, was $290.0 million.