Exhibit 4(sssss)

                                  AMENDMENT TO

                              JANUS ADVISER SERIES

                             SUB-ADVISORY AGREEMENT

                   JANUS ADVISER INTECH RISK-MANAGED CORE FUND

     THIS AMENDMENT is made this 1st day of January, 2008, between JANUS CAPITAL
MANAGEMENT LLC, a Delaware limited liability company ("Janus"), and ENHANCED
INVESTMENT TECHNOLOGIES, LLC, a Delaware limited liability company ("INTECH").

                                   WITNESSETH

     WHEREAS, Janus and INTECH are parties to a Sub-Advisory Agreement on behalf
of Janus Adviser INTECH Risk-Managed Core Fund (the "Fund"), a series of Janus
Adviser Series (the "Trust"), dated July 1, 2004, and amended January 1, 2006
and February 28, 2006 (the "Agreement");

     WHEREAS, the parties desire to amend the Agreement as set forth in greater
detail below;

     WHEREAS, pursuant to Section 11 of the Agreement, any amendment to the
Agreement is subject to approval by (i) a majority of the Trustees, including a
majority of the Trustees who are not interested persons (as that phrase is
defined in Section 2(a)(19) of the 1940 Act) of the Trust or Janus, INTECH or
their affiliates, and (ii) if required by applicable law, by the affirmative
vote of a majority of the outstanding voting securities of the Fund (as that
phrase is defined in Section 2(a)(42) of the 1940 Act); and

     WHEREAS, the parties have obtained Trustee approval as set forth above, and
the parties agree that a shareholder vote is not required to amend the
Agreement.

     NOW, THEREFORE, in consideration of the premises and of the mutual
agreements set forth below, the parties agree to amend the Agreement as follows:

     1. Section 4 of the Agreement shall be deleted in its entirety and replaced
with the following:

          "4. Compensation. Janus shall pay to INTECH for its services under
     this Agreement a fee equal to 50% of the advisory fee payable to Janus from
     the Fund (net of any performance fee adjustment). Fees paid to INTECH shall
     be computed and accrued daily and payable monthly as of the last day of
     each month during which or part of which this Agreement is in effect. For
     the month during which this Agreement becomes effective and the month
     during which it



     terminates, however, there shall be an appropriate proration of the fee
     payable for such month based on the number of calendar days of such month
     during which this Agreement is effective."

     2. The parties acknowledge that the Agreement, as amended, remains in full
force and effect as of the date of this Amendment, and that this Amendment,
together with the Agreement and any prior amendments, contains the entire
understanding and the full and complete agreement of the parties and supercedes
and replaces any prior understandings and agreements among the parties
respecting the subject matter hereof.

     3. This Amendment may be contemporaneously executed in two or more
counterparts, each of which shall be deemed an original but all of which
together shall constitute one and the same instrument.

     IN WITNESS WHEREOF, the parties have caused their duly authorized officers
to execute this Amendment as of the date first above written.

                                        JANUS CAPITAL MANAGEMENT LLC


                                        By: /s/ Gregory A. Frost
                                            ------------------------------------
                                        Name: Gregory A. Frost
                                        Title: Executive Vice President and
                                               Chief Financial Officer


                                        ENHANCED INVESTMENT TECHNOLOGIES, LLC


                                        By: /s/ Justin B. Wright
                                            ------------------------------------
                                        Name: Justin B. Wright
                                              ----------------------------------
                                        Title: V.P. & General Counsel
                                               ---------------------------------