August __, 2007



Vanguard Market Neutral Fund
  a series of Vanguard Montgomery Funds
P.O. Box 2600 Valley Forge, PA 19482

Laudus Rosenberg U.S. Large/Mid
  Capitalization Long/Short Equity Fund
  a series of Laudus Trust
P. O. Box 8032
Boston, MA  02266

Ladies and Gentlemen:

     You have asked us for our opinion  concerning  certain U.S.  federal income
tax  consequences to (i) Vanguard Market Neutral Fund (the "ACQUIRING  FUND"), a
series of Vanguard  Montgomery Funds (the "VANGUARD  TRUST"),  a statutory trust
formed  under the laws of the State of  Delaware,  (ii)  Laudus  Rosenberg  U.S.
Large/Mid  Capitalization  Long/Short Equity Fund (the "SELLING FUND"), a series
of the Laudus Trust (the "LAUDUS TRUST"), a business trust formed under the laws
of the Commonwealth of Massachusetts,  and (iii) the holders ("SHAREHOLDERS") of
voting  shares  of  beneficial  interest  of the  Selling  Fund  ("SELLING  FUND
SHARES"),  when the Shareholders  receive solely units of beneficial interest of
the Acquiring Fund  ("ACQUIRING FUND SHARES") in exchange for their Selling Fund
Shares  pursuant to the transfer by the Selling Fund of all of the assets of the
Selling Fund to the Acquiring Fund in exchange for Acquiring Fund Shares and the
assumption by the Acquiring Fund of all  Liabilities (as defined in that certain
Agreement  and Plan of  Reorganization  adopted by the Board of  Trustees of the
Laudus  Trust on behalf of the  Selling  Fund and the Board of  Trustees  of the
Vanguard Trust on behalf of the Acquiring Fund (the "PLAN")) of the Selling Fund
(the  "Reorganization"),  all  pursuant  to the  Plan.  This  opinion  is  being
delivered pursuant to Section 8.5 of the Plan.

     We have  reviewed  such  documents  and  materials  as we  have  considered
necessary for the purpose of rendering this opinion.  In rendering this opinion,
we have  assumed that such  documents as yet  unexecuted  will,  when  executed,
conform in all material respects to the proposed forms of such documents that we
have examined.  In addition,  we have assumed the genuineness of all signatures,
the capacity of each party executing a document to so execute that document, the
authenticity of all



Vanguard Montgomery Funds
Laudus Trust
August __, 2007
Page 2


documents  submitted to us as originals and the conformity to original documents
of all documents submitted to us as certified or photostatic copies.

     We have made inquiry as to the  underlying  facts that we  considered to be
relevant to the conclusions set forth in this letter.  The opinions expressed in
this letter are based upon certain factual statements  relating to the Acquiring
Fund and the  Selling  Fund set  forth in the Plan and  representations  made in
letters from the Acquiring Fund and the Selling Fund addressed to us for our use
in rendering this opinion ("TAX REPRESENTATION  LETTERS").  We have no reason to
believe  that these  representations  and facts are not  valid,  but we have not
attempted to verify  independently any of these  representations  and facts, and
this opinion is based upon the assumption that each of them is accurate.

     The conclusions  expressed  herein are based upon the Internal Revenue Code
of 1986, as amended ("CODE"), Treasury regulations issued thereunder,  published
rulings and procedures of the Internal  Revenue Service and judicial  decisions,
all as in effect on the date of this letter.

     Based  upon the  foregoing,  we are of the  opinion  that for U.S.  federal
income tax purposes:

o    the  acquisition  by the Acquiring Fund of all of the Selling Fund's assets
     solely in exchange  for  Acquiring  Fund Shares and the  assumption  by the
     Acquiring  Fund of the  Liabilities,  followed by the  distribution  by the
     Selling Fund to its Shareholders of those Acquiring Fund Shares in exchange
     for their Selling Fund Shares in complete  liquidation of the Selling Fund,
     all pursuant to the Plan, constitutes a "reorganization" within the meaning
     of Section  368(a) of the Code, and the Acquiring Fund and the Selling Fund
     will each be a "party to a  reorganization"  within the  meaning of Section
     368(b) of the Code;

o    under  Sections  361 and  357(a) of the  Code,  the  Selling  Fund will not
     recognize  gain or loss upon the  transfer  of its assets to the  Acquiring
     Fund solely in exchange for Acquiring Fund Shares and the assumption by the
     Acquiring Fund of the Liabilities,  and the Selling Fund will not recognize
     gain or loss upon the  distribution  to its  Shareholders  of the Acquiring
     Fund Shares in the subsequent liquidation of the Selling Fund;

o    under Section 354 of the Code, Shareholders will not recognize gain or loss
     on the  receipt of  Acquiring  Fund  Shares  solely in  exchange  for their
     Selling Fund Shares;

o    under  Section 358 of the Code,  the  aggregate  tax basis of the Acquiring
     Fund Shares  received by each  Shareholder  pursuant to the  Reorganization
     will be the same as the aggregate tax basis of the Selling Fund Shares held
     by the Shareholder immediately prior to the Reorganization;



Vanguard Montgomery Funds
Laudus Trust
August __, 2007
Page 3


o    under Section 1223(1) of the Code, the holding period of the Acquiring Fund
     Shares received by each  Shareholder  pursuant to the  Reorganization  will
     include the period during which the Selling Fund Shares exchanged  therefor
     were  held by such  Shareholder,  provided  that the  Shareholder  held the
     Selling  Fund Shares as capital  assets on the Closing  Date (as defined in
     the Plan);


o    under Section 1032 of the Code,  the Acquiring Fund will not recognize gain
     or loss upon the receipt of assets of the  Selling  Fund solely in exchange
     for Acquiring  Fund Shares and the  assumption by the Acquiring Fund of the
     Liabilities;

o    under  Section  362(b)  of the  Code,  the tax  basis of the  assets of the
     Selling  Fund   transferred   to  the   Acquiring   Fund  pursuant  to  the
     Reorganization  will be the same in the hands of the Acquiring  Fund as the
     tax basis of such assets in the hands of the Selling Fund immediately prior
     to the Reorganization;

o    the  Acquiring  Fund will succeed to and take into account the items of the
     Selling Fund described in Section 381(c) of the Code; and

o    under Section 1223(2) of the Code, the holding periods of the assets of the
     Selling Fund transferred to the Acquiring Fund in the Reorganization in the
     hands of the  Acquiring  Fund will  include the periods  during  which such
     assets were held by the Selling Fund.

     No opinion is expressed  herein as to the effect of the  Reorganization  on
the Funds or any  Shareholder  with respect to the recognition of any unrealized
gain or loss for any asset  that is  required  to be  marked to market  for U.S.
federal income tax purposes upon termination of the Selling Fund's taxable year.

     Our   opinion  is  based   upon  the   accuracy   of  the   certifications,
representations and warranties and satisfaction of the covenants and obligations
contained in the Plan, the Tax  Representation  Letters and in the various other
documents  related  thereto.  Our  opinion may not be relied upon if any of such
certifications, representations or warranties are not accurate or if any of such
covenants or obligations are not satisfied in all material  respects.  We hereby
consent to the reference to us in the Proxy Statement.

Sincerely yours,