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<PAGE> PAGE 10
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<PAGE> PAGE 11
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<PAGE> PAGE 12
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<PAGE> PAGE 16
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<PAGE> PAGE 22
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<PAGE> PAGE 23
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<PAGE> PAGE 24
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<PAGE> PAGE 26
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<PAGE> PAGE 27
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SIGNATURE GARY TENKMAN
TITLE VICE PRESIDENT
Report of Independent Accountants
To the Trustees and Shareholders of Barr Rosenberg Series
Trust,
In our opinion, the accompanying statements of assets
and liabilities, including the schedules of portfolio
investments and schedules of securities sold short, and the
related statements of operations and of changes in net assets
and the financial highlights present fairly, in all material
respects, the financial position of U.S. Small Capitalization
Series, Japan Series, International Small Capitalization Series,
Market Neutral Fund, Double Alpha Market Fund, and Select
Sectors Market Neutral Fund, each a series of the Barr Rosenberg
Series Trust (the "Trust") at March 31, 2000, the results of
each of their operations, the changes in each of their net assets
and their financial highlights for the periods presented, in
conformity with accounting principles generally accepted in the
United States. These financial statements and financial
highlights (hereafter referred to as "financial statements")
are the responsibility of the Trust's management; our responsibility
is to express an opinion on these financial statements based on
our audits. We conducted our audits of these financial statements
in accordance with auditing standards generally accepted in the
United States which require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements
are free of material misstatement. An audit includes examining,
on a test basis, evidence supporting the amounts and disclosures
in the financial statements, assessing the accounting principles
used and significant estimates made by management, and evaluating
the overall financial statement presentation. We believe that our
audits, which included confirmation of securities at March 31,
2000 by correspondence with the custodian and brokers, provide a
reasonable basis of the opinion expressed above.
PRICEWATERHOUSECOOPERS LLP
San Francisco
May 11, 2000
Report of Independent Accountants
To the Trustees and Shareholders of Barr Rosenberg Series
Trust
In planning and performing our audit of the financial
statements of Barr Rosenberg Series Trust (the "Trust")
for the year ended March 31, 2000, we considered its
internal control, including control activities for
safeguarding securities, in order to determine our
auditing procedures for the purpose of expressing our
opinion on the financial statements and to comply with
the requirements of Form N-SAR, not to provide assurance
on internal control.
The management of the Trust is responsible for establishing
and maintaining internal control. In fulfilling this
responsibility, estimates and judgments by management are
required to assess the expected benefits and related costs
of controls. Generally, controls that are relevant to an
audit pertain to the entity's objective of preparing financial
statements for external purposes that are fairly presented
in conformity with generally accepted accounting principles.
Those controls include the safeguarding of assets against
unauthorized acquisition, use or disposition.
Because of inherent limitations in internal control, errors or
fraud may occur and not be detected. Also, projection of any
evaluation of internal control to future periods is subject
to the risk that controls may become inadequate because of
changes in conditions or that the effectiveness of their
design and operation may deteriorate.
Our consideration of internal control would not necessarily
disclose all matters in internal control that might be
material weaknesses under standards established by the
American Institute of Certified Public Accountants. A
material weakness is a condition in which the design or
operation of one or more of the internal control components
does not reduce to a relatively low level the risk that
misstatements caused by error or fraud in amounts that would
be material in relation to the financial statements being
audited may occur and not be detected within a timely period
by employees in the normal course of performing their assigned
functions. However, we noted no matters involving internal
control and its operation, including controls for safeguarding
securities, that we consider to be material weaknesses as
defined above as of March 31, 2000.
This report is intended solely for the information and use
of the Board of Trustees, management and the Securities and
Exchange Commission and is not intended to be and should not
be used by anyone other than these specified parties.
May 11, 2000
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<FN>
<F1> Institutional Shares
</FN>
</TABLE>
<TABLE> <S> <C>
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<CIK> 0000832545
<NAME> BARR ROSENBERG SERIES TRUST
<SERIES>
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<NAME> JAPAN SERIES
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<FN>
<F1> Select Shares
</FN>
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<TABLE> <S> <C>
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<CIK> 0000832545
<NAME> BARR ROSENBERG SERIES TRUST
<SERIES>
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<NAME> INTERNATIONAL SMALL CAPITALIZATION SERIES
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<FN>
<F1> Institutional Shares
</FN>
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<TABLE> <S> <C>
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<CIK> 0000832545
<NAME> BARR ROSENBERG SERIES TRUST
<SERIES>
<NUMBER> 033
<NAME> INTERNATIONAL SMALL CAPITALIZATION SERIES
<S> <C>
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<FN>
<F1> Select Shares
</FN>
</TABLE>
<TABLE> <S> <C>
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<CIK> 0000832545
<NAME> BARR ROSENBERG SERIES TRUST
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<NAME> MARKET NEUTRAL FUND
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<FN>
<F1> Institutional Shares
</FN>
</TABLE>
<TABLE> <S> <C>
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<CIK> 0000832545
<NAME> BARR ROSENBERG SERIES TRUST
<SERIES>
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<NAME> MARKET NEUTRAL FUND
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<FN>
<F1> Investor Shares
</FN>
</TABLE>
<TABLE> <S> <C>
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<CIK> 0000832545
<NAME> BARR ROSENBERG SERIES TRUST
<SERIES>
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<NAME> DOUBLE ALPHA MARKET FUND
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<FN>
<F1> Institutional Shares
</FN>
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<TABLE> <S> <C>
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<CIK> 0000832545
<NAME> BARR ROSENBERG SERIES TRUST
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<NAME> DOUBLE ALPHA MARKET FUND
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<FN>
<F1> Investor Shares
</FN>
</TABLE>
<TABLE> <S> <C>
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<CIK> 0000832545
<NAME> BARR ROSENBERG SERIES TRUST
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<NAME> SELECT SECTORS MARKET NEUTRAL FUND
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<F1> Institutional Shares
</FN>
</TABLE>
<TABLE> <S> <C>
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<CIK> 0000832545
<NAME> BARR ROSENBERG SERIES TRUST
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<NAME> SELECT SECTORS MARKET NEUTRAL FUND
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<PERIOD-END> MAR-31-2000
<INVESTMENTS-AT-COST> 24723982
<INVESTMENTS-AT-VALUE> 28871340
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<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 58720930
<PAYABLE-FOR-SECURITIES> 1401807
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 28579980
<TOTAL-LIABILITIES> 29981787
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 27495837
<SHARES-COMMON-STOCK> 82327<F1>
<SHARES-COMMON-PRIOR> 51717<F1>
<ACCUMULATED-NII-CURRENT> 313545
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 2503608
<ACCUM-APPREC-OR-DEPREC> 3433369
<NET-ASSETS> 28739143
<DIVIDEND-INCOME> 334181
<INTEREST-INCOME> 1240232
<OTHER-INCOME> 0
<EXPENSES-NET> 572856
<NET-INVESTMENT-INCOME> 1001557
<REALIZED-GAINS-CURRENT> (1553710)
<APPREC-INCREASE-CURRENT> 2689565
<NET-CHANGE-FROM-OPS> 2137412
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 41702<F1>
<DISTRIBUTIONS-OF-GAINS> 0<F1>
<DISTRIBUTIONS-OTHER> 0<F1>
<NUMBER-OF-SHARES-SOLD> 1457102
<NUMBER-OF-SHARES-REDEEMED> 1751488
<SHARES-REINVESTED> 89881
<NET-CHANGE-IN-ASSETS> (614222)
<ACCUMULATED-NII-PRIOR> 252708
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 936802
<GROSS-ADVISORY-FEES> 251180
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 709313
<AVERAGE-NET-ASSETS> 988778<F1>
<PER-SHARE-NAV-BEGIN> 10.43<F1>
<PER-SHARE-NII> 0.43<F1>
<PER-SHARE-GAIN-APPREC> 0.53<F1>
<PER-SHARE-DIVIDEND> 0.40<F1>
<PER-SHARE-DISTRIBUTIONS> 0.00<F1>
<RETURNS-OF-CAPITAL> 0.00<F1>
<PER-SHARE-NAV-END> 10.99<F1>
<EXPENSE-RATIO> 1.52<F1>
<FN>
<F1> Investor Shares
</FN>
</TABLE>
