MORTGAGE HEDGING ACTIVITIES

We enter into IRLCs to originate residential mortgage loans held for sale, at specified interest rates and within a specified period of time (generally between 30 and 60 days), with customers who have applied for a loan and meet certain credit and underwriting criteria. These IRLCs meet the definition of a derivative and are reflected on the balance sheet at fair value with changes in fair value recognized in mortgage operations revenue/expenses on the statement of operations and other comprehensive income. Unrealized gains and losses on the IRLCs, reflected as derivative assets, are measured based on the fair value of the underlying mortgage loan, quoted Agency MBS prices, estimates of the fair value of the mortgage servicing rights (“MSRs”) and the probability that the mortgage loan will fund within the terms of the IRLC, net of commission expense and broker fees. The fair value of the forward loan sales commitment and mandatory delivery commitments being used to hedge the IRLCs and mortgage loans held for sale not committed to be purchased by investors are based on quoted Agency MBS prices.

The following summarizes derivative instruments as of the periods presented:



	As of
	March 31, 2017					December 31, 2016
(Dollars in thousands)	Fair Value			Notional Amount		Fair Value		Notional Amount
IRLCs	$	2,468		$	75,839	$	1,987	$	61,655
MBSs	(507		)	94,116		304		97,000
Total	$	1,961				$	2,291

We have exposure to credit loss in the event of contractual non-performance by our trading counterparties in derivative instruments that we use in our rate risk management activities. We manage this credit risk by selecting only counterparties that we believe to be financially strong, spreading the risk among multiple counterparties, by placing contractual limits on the amount of unsecured credit extended to any single counterparty, and by entering into netting agreements with counterparties, as appropriate.