|   REPORT DIGEST  ILLINOIS STATE BOARD OF INVESTMENT 
 
 FINANCIAL AUDIT For the Year Ended: June 30, 2006 
 
 
  Release Date: 
  March 27, 2007        State of Illinois Office of the Auditor General WILLIAM G. HOLLAND AUDITOR GENERAL         To obtain a copy of the
  Report contact: Office of the Auditor
  General Iles Park Plaza 740 E. Ash Street Springfield, IL 62703 (217) 782-6046 or TTY (888) 261-2887 
 
 
 This Report Digest and the
  Full Report are also available on the worldwide web at http://www.auditor.illinois.gov | INTRODUCTION
    
        This
  digest covers our financial audit of the Illinois State Board of Investment
  (ISBI) for the year ended June 30, 2006. 
  A report on the results of our compliance attestation examination for
  the year ending June 30, 2006 is being issued separately. 
    
      
  Pursuant to the Illinois Pension Code, the Illinois State Board of
  Investment manages the investments of the State Employees’ Retirement System,
  General Assembly Retirement System and the Judges’ Retirement System. 
    
  LEGISLATION
  AFFECTING ISBI
         Public Act 94-0004 became law June 1, 2005 and
  addressed the early retirement option (ERO), benefit changes and funding
  reductions.   The Act established
  specific dollar amounts to be contributed by the State as employer contributions
  for fiscal years 2006 and 2007, as opposed to the State’s contribution being
  calculated based on the existing funding formula.         The legislative funding reduction will
  be approximately $429.4 million in fiscal year 2007 for employer
  contributions to the State Employees’, Judges’ and General Assembly
  Retirement Systems.  Member systems’
  withdrawals increased by approximately $211 million in fiscal year 2006 from
  $ 547.7 million in fiscal year 2005 to $759 million in fiscal year 2006.  
       AUDITORS' OPINION
    
        Our
  auditors state the June 30, 2006 financial statements of the Illinois State
  Board of Investment are fairly presented. 
   
    
    
    
    
                                    
  ____________________________________ 
  WILLIAM
  G. HOLLAND, Auditor General 
    WGH:RPU:pp   SPECIAL
  ASSISTANT AUDITORS        Our
  special assistant auditors for this audit were KPMG LLP.       {Financial data is
  summarized on the reverse page} | 
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
      | 
ILLINOIS STATE BOARD OF INVESTMENT
FINANCIAL
AUDIT
 
| OPERATING
  STATEMENT ANALYSIS | FY 2006 | FY 2005 | 
| Revenues:
  Investment Income - Appreciation in Fair Value......                  Investment Income - Interest
  & Dividends..............                  Investment Income - Securities
  Lending..................                   Total Investment Income....................................  Expenses: Salaries and Benefits.........................................                 Operating Expenses.............................................. 
   External Support (consulting and investment fees)..                     Total Expenses..................................................   Revenue Over Expenses...............................  Member
  Systems’ Withdrawals..............................................  Net
  Assets Beginning of the Year..........................................  Net
  Assets End of the Year...................................................  | $ 892,599,986 306,226,121 4,321,712 $ 1,203,147,819   $        1,173,380   413,205 28,556,047 $      30,142,632 $ 1,173,005,187 (759,000,000) 10,902,479,667 $11,316,484,854  | $ 766,090,763 262,157,730 3,674,829 $ 1,031,923,322 $         1,082,345   374,817 23,025,047 $       24,482,209 $  1,007,441,113 (547,700,000) 10,442,738,554 $10,902,479,667  | 
| EXTERNAL SUPPORT EXPENSES | FY 2006 | FY 2005 | 
| Custody................................................................................  Consulting and Professional....................................................  Investment Advisors / Managers............................................  Investment Services and Research.........................................           Total External Support Expenses....................................  | $ 224,730 739,748 27,434,504 157,065 $28,556,047 | $     197,857   
   647,218 22,010,299 169,673 $23,025,047 | 
| MEMBER SYSTEMS’ WITHDRAWALS | FY 2006 | FY 2005 | 
| State Employees’ Retirement System................................... Judges’
  Retirement System......................................................  General
  Assembly Retirement System......................................  Total Member Systems’
  Withdrawals...............................  | $721,000,000 28,500,000    
  9,500,000 $759,000,000 | $518,000,000 21,600,000    
  8,100,000 $547,700,000 | 
| INVESTMENT PORTFOLIO ANALYSIS - Fair Value | JUNE 30, 2006 | JUNE 30, 2005 | 
| Government
  and Agency Obligations........................................  Foreign
  Obligations..................................................................  Corporate
  Obligations..............................................................  Convertible
  Bonds...................................................................  Common
  Stock & Equity Funds................................................  Preferred
  Stock.......................................................................  Foreign
  Equity Securities..........................................................  Hedge
  Funds...........................................................................  Real Estate Investments........................................................ Private Equity...................................................................... Money
  Market Instruments......................................................  Forward
  Foreign Exchange Contracts.......................................  Total
  Investment Portfolio...............................................  | $ 1,110,919,988 104,455,671 1,382,574,163 0 5,369,124,032 1,057,334 1,113,268,102 416,462,183 1,134,025,154 482,264,036 320,641,552               26,145 $11,434,818,360 | $ 1,130,079,107 88,970,486 1,643,935,794 1,404,244 5,529,033,328 1,593,391 1,035,874,373 0 778,951,123 466,871,030 283,461,008          (497,874) $10,959,676,010 | 
| SELECTED ACCOUNT BALANCES | JUNE 30, 2006 | JUNE 30, 2005 | 
| Cash.....................................................................................  Total Accounts Receivable.....................................................  Capital Assets.......................................................................  Operating Expenses Payable..................................................  Investment Purchases Payable................................................. | $ 80,644,137 $184,529,093 $       45,348 $ 6,893,061 $376,678,007 | $ 13,722,061 $294,208,301 $        41,772 $ 5,944,261 $359,224,216 | 
| BOARD CHIEF EXECUTIVES  |   |   | 
| During Engagement Period:
  Executive Director: William R. Atwood. Chairman: Edward M. Smith (through
  12-31-2005), Michael Goetz (starting March 2006). Currently:  Executive Director: William R.
  Atwood.  Chairman: Michael Goetz. | ||