Company:  MANAGED DURATION INVESTME ... (MZF)
Form Type:  N-CSRS
Filing Date:  4/4/2012 
CIK:  0001235511 
Address:  2455 CORPORATE WEST DRIVE 
City, State, Zip:  LISLE, Illinois 60532 
Telephone:  630-505-3700 
Fiscal Year:  07/31 
Last Trade
Last Trade: 
$15.22  
Change: 
0.0499 (0.33%)  
Trade Time: 
May 17  
Market Cap: 
$103.33M
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  FORM N-CSRS
    Item 1. Reports to Stockholders.
      FUND PERFORMANCE
      PORTFOLIO OF INVESTMENTS
      PORTFOLIO OF INVESTMENTS
      PORTFOLIO OF INVESTMENTS
      PORTFOLIO OF INVESTMENTS
      FINANCIAL STATEMENTS
        ASSETS AND LIABILITIES
        STATEMENT OF OPERATIONS
        STATEMENT OF CHANGES IN NET ASSETS
        FINANCIAL HIGHLIGHTS TABLE
        NOTES TO FINANCIAL STATEMENTS (Unaudited) January 31, 2012
        Note 1 - Organization:
        ASSETS AND LIABILITIES
      Results of Shareholder Votes
      DIRECTORS AND OFFICERS
        NAME AND TITLE
        NAME AND TITLE
        NAME AND TITLE
        NAME AND TITLE
    Item 2. Code of Ethics.
    Item 3. Audit Committee Financial Expert.
    Item 4. Principal Accountant Fees and Services
    Item 5. Audit Committee of Listed Registrant.
    Item 7. Disclosure of Proxy Voting Policies and Procedures ...
    Item 11. Controls and Procedures.
    SIGNATURES
  EXHIBIT 99.(A)(2)
  EXHIBIT 99.(B)