On behalf of a global investment management firm, Brattle worked on a matter related to the value of the client’s portfolio of credit default and interest rate swaps, including bespoke swaps with Lehman Brothers, at the time of Lehman’s bankruptcy. Brattle consultants and an affiliated academic expert assessed the reasonableness of the investment management firm’s claim against Lehman, taking into account the complex assets in the non-defaulting counterparty’s portfolio as well as the relevant contemporaneous market conditions. The case resulted in a favorable settlement for the investment management firm.