On January 1, 2020, ABC Corp. acquired a 10% interest in XYZ for $20,000. The stock has a readily determinable fair value, so the investor measures the Equity Investment at fair value with all unrealized gains and losses flowing through net income. On December 31, 2020 the fair value of the 10% common stock investment is $24,000. On April 1, 2021, ABC Corp. acquired an additional 20% XYZ's common stock for $52,000 and gains the ability to exert significant influence over its investment and will begin to use the equity method for its investment. What is the amount of the unrealized holding gain or loss that would be required on January 1, 2021 to appropriately transition to the equity method? Specify the amount and if its a holding gain or a loss.