In response to announcement by Lehman Brothers Holdings Inc. of its intent to file a Chapter 11 bankruptcy petition, Sun Life Financial Inc. today announced that it holds $334 million par value of Lehman bond securities and approximately $15 million net value of Lehman derivative instruments.

Sun Life Financial holds collateral security under collateral security agreements for its net derivative exposure to Lehman.

Sun Life says most of its Lehman exposure is held in segments backing liabilities. Under Canadian accounting rules, when a bond backing liabilities is written down in value or defaults, the actuarial assumptions about the cash flows required to support the liabilities will change, resulting in a strengthening of reserves with a corresponding charge to income.

Sun Life Financial says it currently expects to record a charge to earnings in the third quarter of 2008 in respect of its Lehman holdings.

“The amount of the charge is dependent on a number of factors, including the amount of expected recoveries and actuarial cash flow testing which is performed following the close of the quarter on September 30, 2008,” the company said in a release.