This excerpt taken from the PNC 10-Q filed May 11, 2009.
Derivatives Not Designated in SFAS 133 Hedge Relationships
The derivative portfolio also includes free standing derivative financial instruments not included in SFAS 133 hedging strategies. These derivatives are entered into for risk management and economic hedge purposes, to meet customer needs, and for proprietary purposes. They primarily consist of interest rate, basis and total rate of return swaps, interest rate caps, floors and futures contracts, credit default swaps, option and foreign exchange contracts and certain interest rate-locked loan origination commitments, as well as commitments to buy or sell mortgage loans.
We use these derivatives to manage interest rate and prepayment risk related to residential mortgage servicing rights (MSRs), and residential and commercial real estate loans held for sale.
We purchase credit default swaps (CDS) to mitigate the risk of economic loss on a portion of our loan exposure. We also sell loss protection to mitigate the net premium cost and the impact of mark-to-market accounting on CDS purchases to hedge the loan portfolio and to take proprietary trading positions. The fair values of these derivatives typically are based on related credit spreads.
Interest rate lock commitments, as well as commitments to buy or sell mortgage loans, that we intend to sell are considered free-standing derivatives. Our interest rate exposure on certain commercial and residential mortgage interest rate lock commitments as well as commercial and residential mortgage loans held for sale is economically hedged with total rate of return swaps, pay-fixed interest rate swaps, credit derivatives and forward sales agreements. These contracts mitigate the impact on earnings of exposure to a certain referenced rate. The fair value of loan commitments is based on the estimated fair value of the underlying loan and the probability that the loan will fund within the terms of the commitment. The fair value of the loan commitment also