EXHIBIT 31.2


                               MLM INDEX(TM) FUND


                            CERTIFICATION PURSUANT TO
                                 SECTION 302 OF
                         THE SARBANES-OXLEY ACT OF 2002


I,  James  A.  Mehling,  certify  that:

1)   I  have  reviewed  this  report  on  Form  10-Q  of  MLM  Index(TM)  Fund.

2)   Based on my knowledge, this report does not contain any untrue statement of
     a  material  fact  or  omit  to state a material fact necessary to make the
     statements  made, in light of the circumstances under which such statements
     were  made,  not  misleading  with  respect  to  the period covered by this
     report;

3)   Based  on  my  knowledge,  the  financial  statements,  and other financial
     information  included  in  this  report,  fairly  present  in  all material
     respects  the  financial condition, results of operations and cash flows of
     the  registrant  as  of,  and  for,  the  periods presented in this report;

4)   The  registrant's  other  certifying  officers  and  I  are responsible for
     establishing and maintaining disclosure controls and procedures (as defined
     in  Exchange  Act  Rules  13a-14  and  15d-14)  and  internal  control over
     financial  reporting  (as  defined  in  Exchange  Act  Rules  13a-15(f) and
     15d015(f))  for  the  registrant  and  we  have:

     a)   designed  such  disclosure  controls  and  procedures,  or  cause such
          disclosure  controls  and  procedures  to  be  designed  under  our
          supervision,  to  ensure  that  material  information  relating to the
          registrant,  including its consolidated subsidiaries, is made known to
          us  by others within those entities, particularly during the period in
          which  this  report  is  being  prepared;
     b)   designed  such  internal  control  over financial reporting, or caused
          such  internal  control  over financial reporting to be designed under
          our  supervision,  to  provide  reasonable  assurance  regarding  the
          reliability  of  financial  reporting and the preparation of financial
          statements for external purposes in accordance with generally accepted
          accounting  principles;
     c)   evaluated  the  effectiveness  of the registrant's disclosure controls
          and  procedures and presented in this report our conclusions about the
          effectiveness of the disclosure controls and procedures, as of the end
          of  the  period  covered  by this report based on such evaluation; and
     d)   disclosed  in  this  report  any  change  in the registrant's internal
          control over financial reporting that occurred during the registrant's
          fourth  fiscal  quarter that has materially affected, or is reasonably
          likely  to  materially  affect, the registrant's internal control over
          financial  reporting;  and

5)   The  registrant's  other certifying officers and I have disclosed, based on
     our  most  recent  evaluation,  to  the registrant's auditors and the audit
     committee  of  registrant's  board  of directors (or persons performing the
     equivalent  function);

     a)   all  significant  deficiencies  in the design or operation of internal
          control  over  financial  reporting  which  are  reasonably  likely to
          adversely  affect  the  registrant's  ability  to  record,  process,
          summarize  and  report  financial  information;  and

     b)   any  fraud, whether or not material, that involves management or other
          employees  who  have  a  significant role in the registrant's internal
          control  over  financial  reporting

               By:  /s/ James A. Mehling
               -------------------------------
               James  A. Mehling, Vice President and
               Chief Operating Officer of
               Mount Lucas Management Corporation


Date:  August 15, 2005


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