Tanner-UNF Corporation acquired as a long-term investment $260 million of 7% bonds, dated July 1, on July 1, 2018. The market interest rate (yield) was 9% for bonds of similar risk and maturity. Tanner-UNF paid $220 million for the bonds. The company will receive interest semiannually on June 30 and December 31. Company management is holding the bonds in its trading portfolio. As a result of changing market conditions, the fair value of the bonds at December 31, 2018, was $230 million. Record the entry to adjust the fair value.