At the beginning of 2016, Ace Company had the following portfolio of investments in available-for-sale securities (common stock):

Security Cost 12/31/15 Fair Value

A $24,000 $28,000

B 29,000 28,000

Totals $53,000 $56,000

During 2016, the following transactions occurred:

May 3 Purchased C securities (common stock) for $12,000.

July 16 Sold all of the A securities for $28,000.

Dec. 31 Received dividends of $850 on the B and C securities, for which the following information was available:

Security 12/31/16 Fair Value

B	$31,700
C	13,900

Journal Entries

DR-Investment in Available Securities 12000

CR-Cash 12000

DR-Cash 28000

CR-Investment in Available Security 24000

CR-Gain in Sale of Investment 4000

DR-Unrealized Gain/loss 4000

CR-Allowance in sale of investment 4000

DR-Cash 850

CR-Dividend Income 850

DR-Allowance for change in fair value 4000

CR-Unrealized Gain/loss 4000

What is the balance in the Unrealized Holding Gain/Loss account on December 31, 2016?

Please show how you found the answer. Thank you.