This excerpt taken from the C 10-Q filed Nov 5, 2007.
3Q07 Items Impacting the Securities and Banking Business
CDO- and CLO-Related Losses
During the third quarter of 2007, unrealized losses of approximately $1.8 billion pre-tax, net of hedges, were recorded in the Securities and Banking business due to a decline in value of sub-prime mortgage-backed securities warehoused for future collateralized debt obligation (CDO) securitizations, CDO positions, and leveraged loans warehoused for future collateralized loan obligation (CLO) securitizations.
The $1.8 billion pretax of net write-downs consisted of $1.0 billion on asset-backed CDOs (primarily taken on the Company's CDO inventory which totaled $2.7 billion at September 30, 2007 inclusive of the write-down), $0.5 billion on super senior tranches of CDOs (senior-most positions of the capital structure where the predominant collateral is sub-prime U.S. residential mortgage-backed securities) and $0.3 billion on CLOs.
Certain types of credit instruments, such as investments in CDOs, high-yield bonds, debt issued in leveraged buyout transactions, mortgage- and asset-backed securities, and short-term asset- backed commercial paper, became very illiquid in the third quarter of 2007 and this contributed to the declines in value of those securities.
Write-downs on Highly-Leveraged Loans and Commitments
During the third quarter of 2007, Citigroup recorded write downs of approximately $1.352 billion pre-tax, net of underwriting fees, on funded and unfunded highly-leveraged finance commitments in the Securities and Banking business. Of this amount, approximately $901 million related to debt underwriting activities and $451 million related to lending activities. Write-downs were recorded on all highly-leveraged finance commitments where there was value impairment, regardless of the expected funding date.
Fixed Income Credit Trading Losses
During the third quarter of 2007, Citigroup recognized approximately $636 million in credit trading losses due to significant market volatility and the disruption of historical pricing relationships. This was primarily a result of the sharp decrease in the sub-prime markets in both North America and Europe. The resulting trading losses are reflected in the Securities and Banking business.
Market Value Gains Due to the Change in Citigroup Credit Spreads
SFAS 159 provides companies the ability to elect fair value accounting for many financial assets and liabilities. As part of Citigroup's adoption of this standard in the first quarter of 2007, the Company elected the fair value option on debt instruments that are provided to customers so that this debt and the associated assets the Company purchased to meet this liability are on the same fair value basis in earnings. At the end of the third quarter, $28.6 billion of debt related to customer products was classified as either short- or long-term debt on the Consolidated Balance Sheet.
Under fair value accounting, we are required to use Citigroup credit spreads in determining the market value of any Citigroup liabilities for which the fair value option was elected, as well as for Citigroup trading liabilities such as derivatives. The inclusion of Citigroup credit spreads in valuing Citigroup's liabilities gave rise to a pre-tax gain of $466 million in the third quarter of 2007 and is reflected in the Securities and Banking business.