1.
SUPPLEMENTS TO THE
1ST QUARTER 2002 RESULTS

2.
COMMENT ON L&P AND INS INVESTMENT INCOME
§ According to FER / US GAAP regulations, write-downs of carrying value (book value) to
new cost basis have to be done if the market value is below the carrying value other than
temporarily. We applied two primary indicators of declines being other than temporary:
s market value below book value for 6-9 months
s or, market value 20% below book value
§ Given the ageing of the portfolio and the ongoing flat-level development of the equity
markets, it was necessary to recognize substantial impairments in Q1 2002.
§ Total impairments for our insurance units amounted to CHF 0.9 bn (for comparison, total
impairments in 2001: CHF 1.1 bn).
§ The impairments heavily impacted the investment income of both L&P and INS; compared
to Q1/01, the lower overall investment income accounts for a decrease in NOP of CHF
455 m overall (L&P: CHF 150 m; INS: CHF 305 m).
§ As securities are reflected on a mark-to-market basis within the balance sheet of
Winterthur Group, impairments have no impact on equity and solvency ratios.
Supplement 2

3.
ASSETS UNDER MANAGEMENT AS PER 31.03.2002
CSFS CSFB CSG
in CHF bn
PB CRB L&P INS Total IB FS Total Total
Cash & time deposits 55 30 0 0 84 1 13 14 99
Safe custody acc. 440 22 12 0 474 43 594 637 1,111
FI/Equities/Balanced 254 12 0 0 266 5 577 582 848
whereof Fixed income 136 3 0 0 139 0 232 232 371
whereof Equities 118 9 0 0 127 5 213 218 346
whereof Balanced/Other - - - - - - 132 132 132
Investment funds 177 7 12 0 195 38 17 55 251
whereof CSAM inv. funds 75 5 0 0 80 0 12 12 92
whereof other CSG funds * 77 2 12 0 91 38 2 40 131
whereof external funds 25 0 0 0 25 0 3 3 28
Other (derivatives, etc.) 9 3 0 0 13 0 0 0 13
Fiduciary 63 3 0 0 66 0 0 0 66
Insurance AuM - - 103 29 132 - - - 132
Total 558 54 115 29 756 45 606 651 1,407
whereof discretionary 139 2 115 29 285 38 388 426 711
* incl. private equity on behalf of clients
Supplement 3

4.
ASSETS UNDER MANAGEMENT AS PER 31.12.2001
CSFS CSFB CSG
in CHF bn
PB CRB L&P INS Total IB FS Total Total
Cash & time deposits 54 31 0 0 84 1 13 15 99
Safe custody acc. 428 22 11 0 462 40 627 668 1,130
FI/Equities/Balanced 252 12 0 0 263 6 611 616 880
whereof Fixed income 135 3 0 0 138 0 240 240 377
whereof Equities 117 9 0 0 126 6 238 244 369
whereof Balanced/Other - - - - - - 133 133 133
Investment funds 168 7 11 0 186 35 17 51 237
whereof CSAM inv. funds 78 5 0 0 83 0 12 12 95
whereof other CSG funds * 66 2 11 0 79 35 2 36 115
whereof external funds 24 0 0 0 24 0 3 3 27
Other (derivatives, etc.) 9 4 0 0 13 0 0 0 13
Fiduciary 65 3 0 0 68 0 0 0 68
Insurance AuM - - 104 31 134 - - - 134
Total 547 56 115 31 748 42 641 682 1,431
whereof discretionary 132 2 115 31 279 35 394 428 707
* incl. private equity on behalf of clients
Supplement 4

5.
BANK FEE & COMMISSION INCOME
in CHF m
Change vs.
4,886 Q4 2001
4,695
221 4,311 4,254
161 3,953
158 200 Lending related + 27%
1,222 240
1,256
1,177 1,234 Portfolio Mgmt. + 5%
1,162
1,764 Underwriting &
2,033 1,780 1,387
1,389 Corporate - 22%
Finance
1,518 1,116 1,172 Brokerage + 8%
1,101 1,082
382 365 310 375 485 Other + 29%
-220 -235 -249 -261 -224 Commission exp. - 14%
Q1/01 Q2/01 Q3/01 Q4/01 Q1/02 Total - 1%
Supplement 5

6.
CREDIT SUISSE FIRST BOSTON
FID REVENUE BREAKDOWN - Q1 2002
Fixed Income *
Rates
23%
EMG
12%
Credit
65%
* Fixed Income revenue includes 50% of fixed income capital markets
Supplement 6

7.
CREDIT SUISSE FIRST BOSTON
EQUITY REVENUE BREAKDOWN - Q1 2002
Equity * US
customer
31%
EDCU
39%
LatAm
customer
1%
Asia Europe
customer customer
9% 20%
* Equity revenue includes 50% of equity capital markets
Supplement 7

8.
CREDIT SUISSE FIRST BOSTON
IBD REVENUE BREAKDOWN - Q1 2002
Investment Banking * Other DCM
14% 11%
ECM
20%
M&A
Leveraged
43%
finance
12%
* Investment Banking revenue includes 50% of equity capital markets and 50% of fixed income capital markets
Supplement 8

9.
CREDIT SUISSE FIRST BOSTON
CSFB FS REVENUE BREAKDOWN - Q1 2002
CSFB
Financial Services PCS
15%
CSAM
43%
Pershing
42%
Supplement 9

10.
CREDIT SUISSE FIRST BOSTON
EMERGING MARKETS EXPOSURES
03.2002 12.2001 12.2000
USD m USD m USD m
Asia
Total exposure, net of provisions and off-sets 3,104 3,051 3,233
(whereof provisions) (299) (296) (304)
Americas
Total exposure, net of provisions and off-sets 3,064 3,325 2,068
(whereof provisions) (126) (84) (16)
Eastern Europe
Total exposure, net of provisions and off-sets 1,746 1,561 1,918
(whereof provisions) (27) (16) (258)
Africa & Middle East
Total exposure, net of provisions and off-sets 944 1,018 1,205
(whereof provisions) (26) (26) (41)
Supplement 10

11.
EXPOSURES, NPCE, PROVISION EXPENSE
Q1 2002
CS & IPB CSFB CSG
in CHF m legal entities legal entity consolidated
Lending 143,744 38,847 182,591
Unused committed facilities 1,270 103,930 105,200
Contingent exposures 14,359 11,383 25,742
Credit exposures (excl. counterparty trading) 159,373 154,160 313,533
Counterparty trading 1,090 65,719 66,809
Total counterparty exposures * 160,463 219,879 380,342
Non-performing counterp. exposure (NPCE) * 5,307 3,451 8,758
NPCE / credit exposures (excl. counterp. trading) 3.3% 2.2% 2.8%
NPCE / total counterparty exposures 3.3% 1.6% 2.3%
Capital provisions against NPCE ** 3,221 2,040 5,261
Coverage ratio of NPCE 61% 59% 60%
Provision expense (P&L) 88 254 342
Prov. expense / credit exp. (excl. counterp. trading) 22 bp 66 bp 44 bp
Prov. expense / total counterparty exposures 22 bp 46 bp 36 bp
* includes loans and loan equivalents
** excludes interest (fully provided) 1,275 - 1,275
Supplement 11

12.
EXPOSURES, NPCE, PROVISION EXPENSE
FY 2001
CS & IPB CSFB CSG
in CHF m legal entities legal entity consolidated
Lending 142,156 46,108 188,264
Unused committed facilities 12,081 101,719 113,800
Contingent exposures 15,638 9,883 25,521
Credit exposures (excl. counterparty trading) 169,875 157,710 327,585
Counterparty trading 978 71,808 72,786
Total counterparty exposures * 170,853 229,518 400,371
Non-performing counterp. exposure (NPCE) * 5,918 3,748 9,666
NPCE / credit exposures (excl. counterp. trading) 3.5% 2.4% 3.0%
NPCE / total counterparty exposures 3.5% 1.6% 2.4%
Capital provisions against NPCE ** 3,523 2,205 5,728
Coverage ratio of NPCE 60% 59% 59%
Provision expense (P&L) 293 1,214 1,507
Prov. expense / credit exp. (excl. counterp. trading) 17 bp 77 bp 46 bp
Prov. expense / total counterparty exposures 17 bp 53 bp 38 bp
* includes loans and loan equivalents
** excludes interest (fully provided) 1,385 - 1,385
Supplement 12

13.
EXPOSURES, NPCE, PROVISION EXPENSE
2001 QUARTERLY - CSG CONSOLIDATED
Q4 Q3 Q2 Q1
in CHF m 12/01 09/01 06/01 03/01
Lending 188,264 190,806 193,071 198,178
Unused committed facilities 113,800 122,276 133,515 125,137
Contingent exposures 25,521 22,478 23,841 24,366
Credit exposures (excl. counterparty trading) 327,585 335,560 350,427 347,680
Counterparty trading 72,786 82,770 80,837 75,198
Total counterparty exposures * 400,371 418,330 431,263 422,878
Non-performing counterp. exposure (NPCE) * 9,666 9,165 9,740 9,730
NPCE / credit exposures (excl. counterp. trading) 3.0% 2.7% 2.8% 2.8%
NPCE / total counterparty exposures 2.4% 2.2% 2.3% 2.3%
Capital provisions against NPCE ** 5,728 5,148 5,869 5,997
Coverage ratio of NPCE 59% 56% 60% 62%
Provision expense (P&L) 700 401 198 207
Prov. expense / credit exp. (excl. counterp. trading) 86 bp 48 bp 23 bp 24 bp
Prov. expense / total counterparty exposures 70 bp 38 bp 18 bp 20 bp
* includes loans and loan equivalents
** excludes interest (fully provided) 1,385 1,407 1,685 1,830
Supplement 13

14.
EXPOSURES, NPCE, PROVISION EXPENSE
2001 QUARTERLY - CS & IPB LEGAL ENTITIES
Q4 Q3 Q2 Q1
in CHF m 12/01 09/01 06/01 03/01
Lending 142,156 138,759 141,314 139,917
Unused committed facilities 12,081 12,432 12,206 14,016
Contingent exposures 15,638 14,890 16,210 15,699
Credit exposures (excl. counterparty trading) 169,875 166,081 169,730 169,632
Counterparty trading 978 1,390 1,704 1,645
Total counterparty exposures * 170,853 167,471 171,433 171,277
Non-performing counterp. exposure (NPCE) * 5,918 6,270 7,072 7,926
NPCE / credit exposures (excl. counterp. trading) 3.5% 3.8% 4.2% 4.7%
NPCE / total counterparty exposures 3.5% 3.7% 4.1% 4.6%
Capital provisions against NPCE ** 3,523 3,600 4,464 4,909
Coverage ratio of NPCE 60% 57% 63% 62%
Provision expense (P&L) 74 75 102 42
Prov. expense / credit exp. (excl. counterp. trading) 17 bp 18 bp 24 bp 10 bp
Prov. expense / total counterparty exposures 17 bp 18 bp 24 bp 10 bp
* includes loans and loan equivalents
** excludes interest (fully provided) 1,385 1,407 1,685 1,830
Supplement 14

15.
EXPOSURES, NPCE, PROVISION EXPENSE
2001 QUARTERLY - CSFB LEGAL ENTITY
Q4 Q3 Q2 Q1
in CHF m 12/01 09/01 06/01 03/01
Lending 46,108 52,047 51,758 58,261
Unused committed facilities 101,719 109,844 121,308 111,121
Contingent exposures 9,883 7,588 7,631 8,667
Credit exposures (excl. counterparty trading) 157,710 169,479 180,697 178,049
Counterparty trading 71,808 81,380 79,133 73,553
Total counterparty exposures * 229,518 250,859 259,830 251,602
Non-performing counterp. exposure (NPCE) * 3,748 2,895 2,668 1,804
NPCE / credit exposures (excl. counterp. trading) 2.4% 1.7% 1.5% 1.0%
NPCE / total counterparty exposures 1.6% 1.2% 1.0% 0.7%
Capital provisions against NPCE 2,205 1,548 1,405 1,088
Coverage ratio of NPCE 59% 53% 53% 60%
Provision expense (P&L) 627 326 96 165
Prov. expense / credit exp. (excl. counterp. trading) 159 bp 77 bp 21 bp 37 bp
Prov. expense / total counterparty exposures 109 bp 52 bp 15 bp 26 bp
* includes loans and loan equivalents
Supplement 15

16.
TOTAL COUNTERPARTY EXPOSURE
BY RATING
in CHF bn
405 423 431 418 400 380
43% 43% R1 - R3
44% 45% 44% 44%
(AAA - A)
35% 36% 38% 38% R4
36% 37%
(BBB)
16% 16% R5 - R7 or N/R
14% 15% 14% 14%
(non-investment grade)
5% 5% 4% 4% 5% 5% R8
YE 00 03/01 06/01 09/01 YE 01 03/02 (impaired / non-performing)
Supplement 16

17.
TOTAL COUNTERPARTY EXPOSURE
INDUSTRY BREAKDOWN
Total exposure: CHF 380 bn Other
(as of March, 31 2002) 2.6% Services
Individuals
16.2%
16.7%
Selected Industries Public Manufacturing
§ Automotive: 0.4% 2.5% 9.4%
§ Computer: 2.2%
§ Energy: 5.3%
§ Health Care: 1.3% RE & Const.
§ Telecom: 2.6% 7.6%
Energy/Environ.
5.4%
Financial Agri/Mining
Enterprises 1.8%
37.9%
Supplement 17

18.
BIS CAPITAL ADEQUACY CALCULATION AS OF
MARCH 31, 2002
in CHF m
38,975
2,056 36,919 36,919
WGR 4,672 1,202
2,616 1,414
16,078 232,419
C&RB 4,038
WGR 2,616
PB 3,711 minorities, CSG par
goodwill, value
and issued for
other adj. WGR 20,841
merger in 1,202
CSFB 15,433 35,717
34,303 1997
Goodwill
and
other adj.
banking 19,639 229,803
Corp. 11,121
Centre Tier 1 RWA
banking banking
CSG Total Total
Equity Tier 1 RWA
Supplement 18

19.
CAUTIONARY STATEMENT REGARDING
FORWARD-LOOKING INFORMATION
This presentation may contain projections or other forward-looking
statements related to Credit Suisse Group that involve risks and
uncertainties. Readers are cautioned that these statements are only
projections and may differ materially from actual future results or events.
Readers are referred to the documents filed by Credit Suisse Group
with the SEC, specifically the most recent filing on Form 20-F, which
identify important risk factors that could cause actual results to differ
from those contained in the forward-looking statements, including,
among other things, risks relating to market fluctuations and volatility,
significant interest rate changes, credit exposures, cross border
transactions and foreign exchange fluctuations, impaired liquidity,
competition and legal liability. All forward-looking statements are based
on information available to Credit Suisse Group on the date of its
posting and Credit Suisse Group assumes no obligation to update such
statements unless otherwise required by applicable law.
Supplement 19