Exhibit 99.1

SEI Investments Company

Impact of Support Provided to Sponsored Money Market Funds

Quarter to date and Cumulative to date November 28, 2008

(in thousands)

 

                    Quarter to date
Fourth Quarter 2008
As of November 28, 2008
   Cumulative to date
As of November 28, 2008

Description

   Par Value
of Securities
   Support
Amount
   Required
Collateral
   Gross
Charge
   After-Tax
Charge
   Gross
Charge
   After-Tax
Charge

Securities currently held by funds:

                    

Capital Support Agreement (1)

   $ 271,438    $ 271,438    $ 149,547    $ 42,344    $ 26,855    $ 136,003    $ 85,954

Capital Support Agreement (2)

     72,026      30,000      30,000      8,069      5,118      26,834      16,959
                                                

Total of securities currently held by funds

   $ 343,464    $ 301,438    $ 179,547    $ 50,413    $ 31,973    $ 162,837    $ 102,913

 

1 - Pertains to SEI Daily Income Trust Prime Obligation Fund

2 - Pertains to SEI Liquid Asset Trust Prime Obligation Fund