Multico is a securities dealer whose principal market is with other securities dealers. To take advantage of a perceived opportunity, on December 31, the end of its fiscal year, Multico acquired a financial asset in a market other than its principal market for $50,000. At that date, the identical instrument could be sold in Multico's principal market for $50,100 with a $200 transaction cost. Which of the following amounts would constitute fair value to Multico for the financial asset at December 31?