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-Apr-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 April 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 April 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-Apr-00
Washington Mutual Bank, F.A.
Mortgage-Backed Pass-Through Certificates, Series 99-WM3
STATEMENT TO CERTIFICATEHOLDERS
Distribution Date: 19-Apr-00
DISTRIBUTION SUMMARY
Original Current Princip Principal Pass-Through
Class Face Value Amount Distribution Rate
1-A-1 661924000.00 640920655.94 5733130.21 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 346210.85 414.04 NA
2-A-1 100000000.00 95192150.84 1015971.96 7.5000%
2-A-2 100400000.00 96034407.75 922516.32 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 196092.43 172.03 NA
1-M-1 34607000.00 34519583.26 29698.39 7.0000%
1-M-2 6107000.00 6091573.82 5240.79 7.0000%
1-M-3 3562000.00 3553002.44 3056.77 7.0000%
2-M-1 9673000.00 9650099.91 7792.56 7.5000%
2-M-2 1707000.00 1702958.81 1375.16 7.5000%
2-M-3 996000.00 993642.04 802.38 7.5000%
1-B-1 2036000.00 2030857.09 1747.22 7.0000%
1-B-2 2036000.00 2030857.09 1747.22 7.0000%
2-B-1 569000.00 567652.94 458.39 7.5000%
2-B-2 569000.00 567652.94 458.39 7.5000%
B-3 3256278.33 3248165.85 2756.99 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 1272005564.00 7727338.82 0
Interest Realized Loss o Interest
Class Distributed (1) Principal Shortfall
1-A-1 3736682.69 0.00 0.00
1-A-2 165577.11 0.00 0.00
1-A-3 1017401.37 0.00 0.00
1-A-4 593424.85 0.00 0.00
1-A-P NA 0.00NA
2-A-1 594870.80 0.00 0.00
2-A-2 600134.20 0.00 0.00
2-A-3 109860.20 0.00 0.00
2-A-4 147430.14 0.00 0.00
2-A-5 178082.26 0.00 0.00
2-A-P NA 0.00NA
1-M-1 201255.38 0.00 0.00
1-M-2 35514.97 0.00 0.00
1-M-3 20714.65 0.00 0.00
2-M-1 60305.00 0.00 0.00
2-M-2 10642.06 0.00 0.00
2-M-3 6209.42 0.00 0.00
1-B-1 11840.27 0.00 0.00
1-B-2 11840.27 0.00 0.00
2-B-1 3547.35 0.00 0.00
2-B-2 3547.35 0.00 0.00
B-3 19234.78 0.00 0.00
R-1 0.00 0.00 0.00
R-2 0.00 0.00 0.00
TOTAL 7528115.12 0.00 0.00
Prepay InterestCurrent Principal
Class Shortfall Amount
1-A-1 2021.14 635187525.73
1-A-2 89.56 28400000.00
1-A-3 550.30 174506000.00
1-A-4 320.98 101785000.00
1-A-P NA 345796.81
2-A-1 80.14 94176178.88
2-A-2 80.85 95111891.43
2-A-3 14.80 17580000.00
2-A-4 19.86 23592000.00
2-A-5 23.99 28497000.00
2-A-P NA 195920.40
1-M-1 108.86 34489884.87
1-M-2 19.21 6086333.03
1-M-3 11.20 3549945.67
2-M-1 8.12 9642307.35
2-M-2 1.43 1701583.65
2-M-3 0.84 992839.66
1-B-1 6.40 2029109.87
1-B-2 6.40 2029109.87
2-B-1 0.48 567194.55
2-B-2 0.48 567194.55
B-3 8.61 3245408.86
R-1 0.00 0.00
R-2 0.00 0.00
TOTAL 3373.65 1264278225.18
(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 968.26925136 8.66131189
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 989.51820948 1.18338325
2-A-1 22540AQH4 951.92150840 10.15971960
2-A-2 22540AQJ0 956.51800548 9.18840956
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 967.39549074 0.84868675
1-M-1 22540AQE1 997.47401566 0.85816135
1-M-2 22540AQF8 997.47401670 0.85816113
1-M-3 22540AQG6 997.47401460 0.85816115
2-M-1 22540AQR2 997.63257624 0.80559909
2-M-2 22540AQS0 997.63257762 0.80560047
2-M-3 22540AQT8 997.63257028 0.80560241
1-B-1 N/A 997.47401277 0.85816306
1-B-2 N/A 997.47401277 0.85816306
2-B-1 N/A 997.63258348 0.80560633
2-B-2 N/A 997.63258348 0.80560633
B-3 N/A 997.50866505 0.84666903
R-1 22540AQP6 0.00000000 0.00000000
R-2 22540AQQ4 0.00000000 0.00000000
Ending
Interest Current Principal
Class Distribution Amount
1-A-1 5.64518387 959.60793948
1-A-2 5.83017993 1000.00000000
1-A-3 5.83017988 1000.00000000
1-A-4 5.83017979 1000.00000000
1-A-P NA 988.33482623
2-A-1 5.94870800 941.76178880
2-A-2 5.97743227 947.32959592
2-A-3 6.24915813 1000.00000000
2-A-4 6.24915819 1000.00000000
2-A-5 6.24915816 1000.00000000
2-A-P NA 966.54680399
1-M-1 5.81545294 996.61585431
1-M-2 5.81545276 996.61585558
1-M-3 5.81545480 996.61585345
2-M-1 6.23436369 996.82697715
2-M-2 6.23436438 996.82697715
2-M-3 6.23435743 996.82696787
1-B-1 5.81545678 996.61584971
1-B-2 5.81545678 996.61584971
2-B-1 6.23435852 996.82697715
2-B-2 6.23435852 996.82697715
B-3 5.90698277 996.66199603
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: April 30, 2000
