SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date of Report (date of earliest event reported): 19-May-00
Credit Suisse First Boston Mortgage Securities Corp. Mortgage Backed
Pass-Through Certificates, Series 99-WM3
(Exact name of registrant as specified in its charter)
Delaware 333-53115 13-3320910
(State or Other Jurisdiction (Commission (I.R.S. Employer
of Incorporation) File Number) Identification No.)
11 Madison Avenue, 5th Floor
New York, New York 10010
(Address of Principal Executive Offices) (Zip Code)
Registrant's telephone number, including area code: (212) 325-2000
Item 5. Other Events
On May 19,2000 a scheduled distribution was made from the Trust
to holders of the Certificates. The Trustee has caused to be filed
with the Commission, the Monthly Report dated May 19, 2000.
The Monthly Report is filed pursuant to and in accordance with
(1) numerous no-action letters (2) current Commission policy
in the area.
A. Monthly Report Information
See Exhibit No.1
B. Have and deficiencies occurred? NO.
Date:
Amount:
C. Item 1: Legal Proceedings: NONE
D. Item 2: Changes in Securities: NONE
E. Item 4: Submission of Matters to a Vote of
Certificateholders: NONE
F. Item 5: Other Information - Form 10-Q, PartII - Items 1,2,4,5
if applicable: NOT APPLICABLE
Item 7. Monthly Statements and Exhibits
Exhibit No.
1.) Monthly Distribution Report Dated: 19-May-00
Washington Mutual Bank, F.A.
Mortgage-Backed Pass-Through Certificates, Series 99-WM3
STATEMENT TO CERTIFICATEHOLDERS
Distribution Date: 19-May-00
DISTRIBUTION SUMMARY
Original Current Princip Principal Pass-Through
Class Face Value Amount Distribution Rate
1-A-1 661924000.00 635187525.73 5773546.57 7.0000%
1-A-2 28400000.00 28400000.00 0.00 7.0000%
1-A-3 174506000.00 174506000.00 0.00 7.0000%
1-A-4 101785000.00 101785000.00 0.00 7.0000%
1-A-P 349878.20 345796.81 8960.21 NA
2-A-1 100000000.00 94176178.88 1787644.67 7.5000%
2-A-2 100400000.00 95111891.43 1623205.60 7.5000%
2-A-3 17580000.00 17580000.00 0.00 7.5000%
2-A-4 23592000.00 23592000.00 0.00 7.5000%
2-A-5 28497000.00 28497000.00 0.00 7.5000%
2-A-P 202701.41 195920.40 16720.19 NA
1-M-1 34607000.00 34489884.87 29919.33 7.0000%
1-M-2 6107000.00 6086333.03 5279.78 7.0000%
1-M-3 3562000.00 3549945.67 3079.51 7.0000%
2-M-1 9673000.00 9642307.35 7795.57 7.5000%
2-M-2 1707000.00 1701583.65 1375.69 7.5000%
2-M-3 996000.00 992839.66 802.69 7.5000%
1-B-1 2036000.00 2029109.87 1760.22 7.0000%
1-B-2 2036000.00 2029109.87 1760.22 7.0000%
2-B-1 569000.00 567194.55 458.56 7.5000%
2-B-2 569000.00 567194.55 458.56 7.5000%
B-3 3256278.33 3245408.86 2773.47 7.1093%
R-1 100.00 0.00 0.00 7.0000%
R-2 100.00 0.00 0.00 7.0000%
TOTAL 1302355057.94 1264278225.18 9265540.84 0
Interest Realized Loss o Interest
Class Distributed (1 Principal Shortfall
1-A-1 3704516.75 0.00 0.00
1-A-2 165633.41 0.00 0.00
1-A-3 1017747.32 0.00 0.00
1-A-4 593626.64 0.00 0.00
1-A-P NA 0.00NA
2-A-1 588488.58 0.00 0.00
2-A-2 594335.67 0.00 0.00
2-A-3 109853.99 0.00 0.00
2-A-4 147421.81 0.00 0.00
2-A-5 178072.20 0.00 0.00
2-A-P NA 0.00NA
1-M-1 201150.61 0.00 0.00
1-M-2 35496.48 0.00 0.00
1-M-3 20703.86 0.00 0.00
2-M-1 60252.90 0.00 0.00
2-M-2 10632.87 0.00 0.00
2-M-3 6204.06 0.00 0.00
1-B-1 11834.09 0.00 0.00
1-B-2 11834.09 0.00 0.00
2-B-1 3544.29 0.00 0.00
2-B-2 3544.29 0.00 0.00
B-3 19223.26 0.00 0.00
R-1 0.00 0.00 0.00
R-2 0.00 0.00 0.00
TOTAL 7484117.17 0.00 0.00
Prepay InteresCurrent Principal
Class Shortfall Amount
1-A-1 743.82 629413979.16
1-A-2 33.26 28400000.00
1-A-3 204.35 174506000.00
1-A-4 119.19 101785000.00
1-A-P NA 336836.60
2-A-1 112.54 92388534.21
2-A-2 113.65 93488685.83
2-A-3 21.01 17580000.00
2-A-4 28.19 23592000.00
2-A-5 34.05 28497000.00
2-A-P NA 179200.21
1-M-1 40.39 34459965.54
1-M-2 7.13 6081053.25
1-M-3 4.16 3546866.16
2-M-1 11.52 9634511.78
2-M-2 2.03 1700207.96
2-M-3 1.19 992036.97
1-B-1 2.38 2027349.65
1-B-2 2.38 2027349.65
2-B-1 0.68 566735.99
2-B-2 0.68 566735.99
B-3 3.81 3242635.39
R-1 0.00 0.00
R-2 0.00 0.00
TOTAL 1486.41 1255012684.34
(1) Interest Distribution includes Reimbursement of Realized Losses,
and is net of allocated PPIS
AMOUNTS PER $1,000 UNIT
Beginning
Current Princip Principal
Class Cusip Amount Distribution
1-A-1 22540APZ5 959.60793948 8.72237080
1-A-2 22540AQA9 1000.00000000 0.00000000
1-A-3 22540AQB7 1000.00000000 0.00000000
1-A-4 22540AQC5 1000.00000000 0.00000000
1-A-P 22540AQD3 988.33482623 25.60951211
2-A-1 22540AQH4 941.76178880 17.87644670
2-A-2 22540AQJ0 947.32959592 16.16738645
2-A-3 22540AQK7 1000.00000000 0.00000000
2-A-4 22540AQL5 1000.00000000 0.00000000
2-A-5 22540AQM3 1000.00000000 0.00000000
2-A-P 22540AQN1 966.54680399 82.48679671
1-M-1 22540AQE1 996.61585431 0.86454561
1-M-2 22540AQF8 996.61585558 0.86454560
1-M-3 22540AQG6 996.61585345 0.86454520
2-M-1 22540AQR2 996.82697715 0.80591027
2-M-2 22540AQS0 996.82697715 0.80591095
2-M-3 22540AQT8 996.82696787 0.80591365
1-B-1 N/A 996.61584971 0.86454813
1-B-2 N/A 996.61584971 0.86454813
2-B-1 N/A 996.82697715 0.80590510
2-B-2 N/A 996.82697715 0.80590510
B-3 N/A 996.66199603 0.85173002
R-1 22540AQP6 0.00000000 0.00000000
R-2 22540AQQ4 0.00000000 0.00000000
Ending
Interest Current Principal
Class Distribution Amount
1-A-1 5.59658926 950.88556868
1-A-2 5.83216232 1000.00000000
1-A-3 5.83216233 1000.00000000
1-A-4 5.83216230 1000.00000000
1-A-P NA 962.72531412
2-A-1 5.88488580 923.88534210
2-A-2 5.91967799 931.16220946
2-A-3 6.24880489 1000.00000000
2-A-4 6.24880510 1000.00000000
2-A-5 6.24880514 1000.00000000
2-A-P NA 884.06000728
1-M-1 5.81242552 995.75130869
1-M-2 5.81242509 995.75130997
1-M-3 5.81242560 995.75130825
2-M-1 6.22897757 996.02106689
2-M-2 6.22898067 996.02106620
2-M-3 6.22897590 996.02105422
1-B-1 5.81242141 995.75130157
1-B-2 5.81242141 995.75130157
2-B-1 6.22898067 996.02107206
2-B-2 6.22898067 996.02107206
B-3 5.90344499 995.81026601
R-1 0.00000000 0.00000000
R-2 0.00000000 0.00000000
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, as
amended, the registrant has duly caused this report to be signed on its behalf
by the undersigned hereunto duly authorized.
Credit Suisse First Boston
Mortgage Securities Corp.
By: /s/ Barbara Grosse
--------------------------
Name: Barbara Grosse
Title: Assistant Vice President
Dated: May 31, 2000
