WARBURG PINCUS TRUST
NSAR-B, 2000-02-22
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<PAGE>      PAGE  1
000 B000000 12/31/1999
000 C000000 0000941568
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 A
001 A000000 WARBURG PINCUS TRUST
001 B000000 811-7261
001 C000000 3027911640
002 A000000 400 BELLEVUE PARKWAY
002 B000000 WILMINGTON
002 C000000 DE
002 D010000 19809
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 Y
007 B000000  6
007 C010100  1
007 C020100 INTERNATIONAL EQUITY PORTFOLIO
007 C030100 N
007 C010200  2
007 C020200 SMALL COMPANY GROWTH PORTFOLIO
007 C030200 N
007 C010300  3
007 C020300 POST-VENTURE CAPITAL PORTFOLIO
007 C030300 N
007 C010400  4
007 C020400 GROWTH & INCOME PORTFOLIO
007 C030400 N
007 C010500  5
007 C020500 EMERGING MARKETS PORTFOLIO
007 C030500 N
007 C010600  6
007 C020600 EMERGING GROWTH PORTFOLIO
007 C030600 N
007 C010700  7
007 C010800  8
007 C010900  9
007 C011000 10
010 A00AA01  PFPC INC.
010 B00AA01 85-1196
010 C01AA01 WILMINGTON
010 C02AA01 DE
010 C03AA01 19809
010 A00AA02  CREDIT SUISSE ASSET MGMT. SECURITIES
010 B00AA02 801-000000
<PAGE>      PAGE  2
010 C01AA02 NEW YORK
010 C02AA02 NY
010 C03AA02 10017
012 A00AA01 BOSTON FINANCIAL DATA SERVICES
012 B00AA01 84-00896
012 C01AA01 QUINCY
012 C02AA01 MA
012 C03AA01 02171
013 A00AA01 PRICEWATERHOUSECOOPERS LLP
013 B01AA01 PHILADELPHIA
013 B02AA01 PA
013 B03AA01 19103
020 A000001 MERRILL LYNCH, PIERCE, FENNER & SMITH, INC.
020 B000001 13-5674085
020 C000001    349
020 A000002 GOLDMAN, SACHS & COMPANY
020 B000002 13-5108880
020 C000002    267
020 A000003 MORGAN STANLEY & COMPANY, INC.
020 B000003 13-2655998
020 C000003    258
020 A000004 LEHMAN BROTHERS, INC.
020 B000004 13-2518466
020 C000004    146
020 A000005 SMITH BARNEY INC.
020 B000005 13-1312900
020 C000005    142
020 A000006 DEUTSCHE BANK
020 B000006 00-0000000
020 C000006    134
020 A000007 WARBURG DILLON REED
020 B000007 13-1939216
020 C000007    130
020 A000008 CAPITAL INST'L. SERVICES, INC.
020 B000008 75-1565705
020 C000008     95
020 A000009 WERTHEIM SCHRODER
020 B000009 00-0000000
020 C000009     90
020 A000010 KLEINWORT BENSON
020 B000010 13-2647786
020 C000010     90
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022 A000001 STATE STREET BANK AND TRUST CO.
022 B000001 04-1867445
022 C000001   2988237
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022 A000002 MERRILL LYNCH, PIERCE, FENNER & SMITH, INC.
022 B000002 13-5674085
022 C000002    383471
022 D000002     34057
<PAGE>      PAGE  3
022 A000003 LEHMAN BROTHERS, INC.
022 B000003 13-2518466
022 C000003     49162
022 D000003     47586
022 A000004 WARBURG DILLON REED
022 B000004 13-1939216
022 C000004     52133
022 D000004     37989
022 A000005 GOLDMAN, SACHS & CO.
022 B000005 13-5108880
022 C000005     45850
022 D000005     39508
022 A000006 SMITH BARNEY INC.
022 B000006 13-1912900
022 C000006     38985
022 D000006     33537
022 A000007 MONTGOMERY SECURITIES
022 B000007 94-1701676
022 C000007     26004
022 D000007     36419
022 A000008 MORGAN STANLEY & CO., INC.
022 B000008 13-2655998
022 C000008     44890
022 D000008     16602
022 A000009 FURMAN SELZ
022 B000009 13-2753731
022 C000009     25045
022 D000009     34793
022 A000010 MORGAN (J.P.) SECURITIES, INC.
022 B000010 13-3224016
022 C000010      9705
022 D000010     41127
023 C000000    5912782
023 D000000    2378011
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<PAGE>      PAGE  4
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054 B00AA00 Y
054 C00AA00 Y
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054 E00AA00 N
054 F00AA00 N
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054 H00AA00 N
054 I00AA00 N
054 J00AA00 N
054 K00AA00 N
054 L00AA00 Y
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015 A000101 PFPC TRUST COMPANY
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<PAGE>      PAGE  6
015 C020101 PA
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<PAGE>      PAGE  7
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<PAGE>      PAGE  8
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<PAGE>      PAGE  9
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<PAGE>      PAGE  10
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008 A000201 CREDIT SUISSE ASSET MANAGEMENT, LLC
008 B000201 A
008 C000201 801-37170
008 D010201 NEW YORK
008 D020201 NY
008 D030201 10022
015 A000201 PFPC TRUST COMPANY
015 B000201 C
015 C010201 PHILADELPHIA
015 C020201 PA
015 C030201 19103
015 E010201 X
015 A000202 STATE STREET BANK AND TRUST COMPANY
015 B000202 C
015 C010202 BOSTON
015 C020202 MA
015 C030202 02110
015 E040202 X
018  000200 Y
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019 C000200 WARBURG PI
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<PAGE>      PAGE  11
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<PAGE>      PAGE  12
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<PAGE>      PAGE  13
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<PAGE>      PAGE  14
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015 A000301 PFPC TRUST COMPANY
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<PAGE>      PAGE  15
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<PAGE>      PAGE  16
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<PAGE>      PAGE  17
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<PAGE>      PAGE  18
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008 A000401 CREDIT SUISSE ASSET MANAGEMENT, LLC
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008 C000401 801-37170
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008 D030401 10022
015 A000401 PFPC TRUST COMPANY
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<PAGE>      PAGE  19
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<PAGE>      PAGE  20
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070 C020400 N
070 D010400 N
070 D020400 N
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070 E020400 N
070 F010400 N
070 F020400 N
070 G010400 N
070 G020400 N
070 H010400 N
070 H020400 N
070 I010400 N
070 I020400 N
070 J010400 N
070 J020400 N
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070 K020400 Y
070 L010400 Y
070 L020400 Y
070 M010400 Y
<PAGE>      PAGE  21
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070 Q020400 N
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<PAGE>      PAGE  22
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015 A000501 STATE STREET BANK & TRUST CO
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<PAGE>      PAGE  23
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<PAGE>      PAGE  24
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<PAGE>      PAGE  25
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<PAGE>      PAGE  26
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008 A000601 CREDIT SUISSE ASSET MANAGEMENT LLC
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008 D030601 10022
015 A000601 PFPC TRUST COMPANY
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<PAGE>      PAGE  27
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<PAGE>      PAGE  28
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<PAGE>      PAGE  29
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SIGNATURE   MARY JANE MALONEY
TITLE       MANAGER



<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000941568
<NAME> WARBURG PINCUS TRUST
<SERIES>
   <NUMBER> 01
   <NAME> INTERNATIONAL EQUITY PORTFOLIO

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<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000941568
<NAME> WARBURG PINCUS TRUST
<SERIES>
   <NUMBER> 02
   <NAME> SMALL COMPANY GROWTH PORTFOLIO

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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000941568
<NAME> WARBURG PINCUS TRUST
<SERIES>
   <NUMBER> 03
   <NAME> POST VENTURE CAPITAL PORTFOLIO

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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000941568
<NAME> WARBURG PINCUS TRUST
<SERIES>
   <NUMBER> 04
   <NAME> GROWTH & INCOME PORTFOLIO

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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000941568
<NAME> WARBURG PINCUS TRUST
<SERIES>
   <NUMBER> 05
   <NAME> EMERGING MARKETS PORTFOLIO

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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000941568
<NAME> WARBURG PINCUS TRUST
<SERIES>
   <NUMBER> 06
   <NAME> EMERGING GROWTH PORTFOLIO

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<DISTRIBUTIONS-OF-INCOME>                      (35553)
<DISTRIBUTIONS-OF-GAINS>                           (0)
<DISTRIBUTIONS-OTHER>                              (0)
<NUMBER-OF-SHARES-SOLD>                        5704415
<NUMBER-OF-SHARES-REDEEMED>                    (51553)
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<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
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<OVERDIST-NET-GAINS-PRIOR>                           0
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<EXPENSE-RATIO>                                   1.25



</TABLE>


                        EXHIBIT INDEX


Exhibit A: Attachment to item 77B:
           Accountants report on internal control
- -------------------------------------------------------

Exhibit A:
REPORT OF INDEPENDENT ACCOUNTANTS

To the Board of Trustees of Warburg, Pincus Trust:

In planning and performing our audit of the financial statements
of Warburg, Pincus Trust consisting of the International Equity,
Small Company Growth, Post-Venture Capital, Growth & Income,
Emerging Markets and Emerging Growth Portfolios (all portfolios
collectively referred to as the "Trust") for the year (or
period) ended December 31, 1999, 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
financial highlights 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 judgements 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 controls, 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 it may become inadequate because of changes in
conditions or that the effectiveness of the 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 errors or fraud in
amounts that would be material in relation to the financial
statements and financial highlights 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 over safeguarding securities, that we consider
to be material weaknesses as defined above as of December 31,
1999.

This report is intended solely for the information and use of the
Board of Trustees of the Trust, 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.

PricewaterhouseCoopers LLP
February 3, 2000





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