Some of Grand Junction Corporation’s investment securities are classified as trading securities and some are classified as available-for-sale. The cost and market value of each category at December 31, 2011, was as follows.

Cost

Fair Value

Unrealized Gain (Loss)

Trading securities

96,300

84,900

(11,400)

Available-for-sale securities

59,000

63,200

4,200

At December 31, 2010, the Market Adjustment-Trading account had a debit balance of $2,200, and the Market Adjustment-Available-for-Sale account had a credit balance of $7,750.

Prepare the required journal entries for each group of securities for December 31, 2011.