MORRIS, NICHOLS, ARSHT & TUNNELL, LLP
                            1201 NORTH MARKET STREET
                                 P.O. BOX 1347
                        WILMINGTNO, DELAWARE, 19899-1347

                                  302 658 9200
                                302 658 3989 FAX






August 22, 2007

Willkie Farr & Gallagher LLP
787 Seventh Avenue
New York, New York 10019


Re:     Vanguard Marekt Neutral Fund
        -----------------------------


Ladies and Gentlemen:


     We have acted as special Delaware counsel to Vanguard  Montgomery  Funds, a
Delaware  statutory  trust (the  "Trust"),  in connection  with certain  matters
relating to the  formation of the Trust and the issuance of Shares of the Trust.
Capitalized  terms used  herein and not  otherwise  herein  defined  are used as
defined in the Governing Instrument (as defined below).

     We understand  that,  pursuant to an Agreement  and Plan of  Reorganization
(the  "Plan") to be  entered  into by the Trust,  on behalf of  Vanguard  Market
Neutral  Fund, a Series of the Trust (the  "Acquiring  Fund"),  and Laudus Trust
("Laudus"),   on  behalf  of  Laudus  Rosenberg  U.S.  Large/Mid  Capitalization
LondShort Equity Fund, a series of Laudus (the "Selling  Fund"),  i1 and subject
to the  conditions  set  forth  therein,  Shares of the  Acquiring  Fund will be
distributed to l1 the  shareholders  of the Selling Fund in connection  with the
liquidation and termination of the Selling Fund.

     In rendering  this  opinion,  we have  examined and relied on copies of the
following  documents,  each in the form  provided  to us: the Plan;  the Trust's
Registration Statement on Form N-14 to be filed with the Securities and Exchange
Commission  on or about the date  hereof  (the  "Registration  Statement");  the
Certificate of Trust of the Trust as filed in the Office of the 1 1 Secretary of
State of the State of Delaware  (the "State  Office") on July 18, 2007 (the
"Certificate");  the Agreement and Declaration of Trust of the Trust dated as of
July 18,2007 (the  "Original  Governing  Instrument");  the Amended and Restated
Agreement and  Declaration  of Trust of the Trust dated as of July 20, 2007 (the
"Governing  Instrument");  the Bylaws of the Trust (the "Bylaws"); the Unanimous
Written  Consent of the  Initial  Trustee of the Trust  dated July 17, 2007 (the
"Initial Trustee Consent");  resolutions prepared for adoption at a meeting of I
the Trustees of the Trust held on July 20, 2007 (the "July 20 Resolutions"  and,
together with the Registration Statement,  the Governing Instrument,  the Bylaws
and the Initial Trustee Consent, the "Governing Documents"); a memorandum to


Willkie Farr & Gallagher LLP
August 22, 2007
Page 2


the Board of  Directors  of the  Vanguard  Group,  the Board of  Trustees of the
Vanguard  Funds and the  Prospective  Board of  Trustees of the Trust dated July
18,2007;  a memorandum to the  Prospective  Board of Trustees of the Trust dated
July 20, 2007; and a certification  of good standing of the Trust obtained as of
a recent date from the State Office. In such  examinations,  we have assumed the
genuineness  of all  signatures,  the  conformity  to original  documents of all
documents  submitted to us as copies or drafts of documents to be executed,  and
the legal capacity of natural persons to complete the execution of documents. We
have fiuther  assumed for  purposes of this  opinion:  (i) the due  formation or
organization,  valid  existence and good standing of each entity (other than the
Trust) that is a party to any of the documents  reviewed by us under the laws of
the  jurisdiction  of its  respective  formation or  organization;  (ii) the due
adoption, authorization, execution and delivery by, or on behalf of, each of the
parties thereto of the above-referenced  agreements,  instruments,  certificates
and other documents and of all documents contemplated by the Governing Documents
to be executed by investors desiring to become  Shareholders  (including the due
authorization,  execution and delivery of the Governing  Instrument and the Plan
prior to the first issuance of Shares  pursuant to the Plan);  (iii) the payment
of  consideration  for Shares,  and the  application of such  consideration,  as
provided in the Original Governing  Instrument,  the Governing Documents and the
Plan,  as  applicable,  the  satisfaction  of all  conditions  precedent  to the
issuance of Shares  pursuant to the Plan and  compliance  with all other  terms,
conditions and restrictions set forth in the Plan and the Governing Documents in
connection with the issuance of ' Shares  (including,  without  limitation,  the
taking of all appropriate action by the Trustees to designate the Acquiring Fund
as a Series of the Trust and to  designate  Classes of Shares to be issued under
the  Plan and the  rights  and  preferences  attributable  thereto  prior to the
issuance  thereof);  (iv) that prior to the first issuance of Shares pursuant to
the Plan,  the  Trustees  will have duly  adopted  resolutions  authorizing  the
execution,  delivery and  performance  by the Trust,  on behalf of the Acquiring
Fund, of the Plan (including the issuance of Shares pursuant thereto);  (v) that
appropriate  notation of the names and  addresses  of, the number of Shares held
by,  and the  consideration  paid by,  Shareholders  will be  maintained  in the
appropriate  registers  and other books and  records of the Trust in  connection
with the issuance,  redemption or transfer of Shares;  (vi) that,  subsequent to
the filing of the Certificate,  no event has occurred,  or prior to the issuance
of Shares  pursuant  to the Plan will  occur,  that would  cause a  termination,
dissolution  or  reorganization  of  the  Trust  under  the  Original  Governing
Instrument or the Governing lnstrument, as applicable; (vii) that, subsequent to
the filing of the Certificate,  no event has occurred,  or prior to the issuance
of Shares  pursuant  to the Plan will  occur,  that would  cause a  termination,
dissolution or reorganization of the Acquiring Fund under the Original Governing
lnstrument or the Governing Instrument, as applicable; (viii) that the Trust is,
becomes, or will become prior to or within 180 days following the first issuance
of  beneficial  interests  therein,  a registered  investment  company under the
Investment Company Act of 1940, as amended;  and (ix) that each of the documents
examined by us is in full force and effect,  expresses the entire  understanding
of the parties  thereto with respect to the subject  matter  thereof and has not
been amended,  supplemented or otherwise modified,  except as herein referenced.
We have  not  reviewed  any  documents  other  than  those  identified  above in
connection  with  this  opinion,  and we have  assumed  that  there are no other
documents  that are  contrary to or  inconsistent  with the  opinions  expressed
herein.  No opinion is expressed  herein with respect to the requirements of, or
compliance  with,  federal or state  securities  or blue sky laws.  Further,  we
express no opinion on the sufficiency or accuracy of the Registration Statement,
or any other registration or offering  documentation  relating to the Trust, the
Acquiring  Fund or the Shares.  As to any facts  material to our opinion,  other
than those assumed,  we have relied without  independent  investigation on k the
above-referenced  documents and on the accuracy,  as of the date hereof,  of the
matters therein I contained.


Willkie Farr & Gallagher LLP
August 22, 2007
Page 3


     Based on and  subject to the  foregoing,  and  limited in all  respects  to
matters of Delaware law, it is our opinion that:

1.   The Trust is a duly formed and validly  existing  statutory trust in good I
     standing under the laws of the State of Delaware.


2.   The Shares of the Acquiring Fund to be issued and delivered to shareholders
     of the Selling Fund pursuant to the terms of the Plan, upon issuance,  will
     be validly issued, fully paid and non-assessable.

     We  hereby  consent  to the  filing  of a copy of  this  opinion  with  the
Securities and Exchange Commission as an exhibit to the Registration  Statement.
In giving this consent, we do not thereby admit that we come within the category
of person whose  consent is required  under Section 7 of the  Securities  Act of
1933, as amended,  or the rules and  regulations  of the Securities and Exchange
Commission  thereunder.  This  opinion  speaks only as of the date hereof and is
based on our  understandings  and  assumptions as to present  facts,  and on the
application  of  Delaware  law as the  same  exist on the  date  hereof,  and we
undertake no  obligation  to update or  supplement  this opinion  after the date
hereof  for the  benefit of any  person or entity  with  respect to any facts or
circumstances  that may hereafter  come to our attention or any changes in facts
or law that may hereafter occur or take effect.  This opinion is intended solely
for  the  benefit  of the  addressee  hereof  in  connection  with  the  matters
contemplated  hereby and may not be relied on by any other person or entity,  or
for any other purpose,  without our prior written  consent;  provided,  however,
that we understand that the addressee  hereof wishes to rely on the opinions set
forth  herein as to  certain  matters of  Delaware  law in  connection  with its
opinion  to the Trust  dated the date  hereof  and  filed as an  exhibit  to the
Registration Statement, and we hereby consent I to such reliance.




Very truly yours,



MORRIS, NICHOLS, ARSHT & TUNNELL LLP



Louise G. Hering