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| Washington Mutual Asset-Backed Certificates, WMABS Series 2006-HE5 | Dec 31 |
| Washington Mutual Asset-Backed Certificates, WMABS Series 2007-HE1 | Dec 31 |
| Washington Mutual Asset-Backed Certificates, WMABS Series 2007-HE2 | Dec 31 |
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| WASHINGTON MUTUAL MOR SEC CORP MOR PASS THRU CERT SER 2001-8 | Dec 31 |
| WASHINGTON MUTUAL MOR SEC CORP MOR PAS THR SER 2001-6 | Dec 31 |
| WASHINGTON MUTUAL MOR SEC CORP MOR PA THR CER SER 2002-AR1 | Dec 31 |
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| Washington Mutual Mortgage Pass-Through Certificates, WMALT 2005-4 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2005-1 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2005-10 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2005-11 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2005-2 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2005-3 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2005-5 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2005-6 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2005-7 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2005-8 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2005-9 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2005-AR1 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2006-1 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2006-2 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2006-3 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2006-4 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2006-5 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2006-6 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2006-7 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2006-8 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2006-9 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2006-AR1 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2006-AR10 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2006-AR2 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2006-AR3 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2006-AR4 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2006-AR5 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2006-AR6 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2006-AR7 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2006-AR8 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2006-AR9 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2007-1 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2007-2 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2007-3 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2007-4 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2007-5 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2007-HY1 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2007-HY2 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2007-OA1 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2007-OA2 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2007-OA3 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2007-OA4 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2007-OA5 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2007-OC2 | Dec 31 |
| Washington Mutual Mortgage Pass-Through Certificates, WMALT Series 2007-OCI | Dec 31 |
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| WASHINGTON MUTUAL MORTGAGE SECURITIES CORP SERIES 2004-RS1 | Dec 31 |
| WASHINGTON MUTUAL MORT PS THR CERTS SER 2003-R1 | Dec 31 |
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| WASHINGTON MUTUAL MORT SEC CORP PAS THR CERT SER 01 AR1 | Dec 31 |
| WASHINGTON MUTUAL MORT SEC CORP PAS THR CERTS SER 2001 MS15 | Dec 31 |
| WASHINGTON MUTUAL MORT SEC CORP PAS THR CERTS SER 2003 MS1 | Dec 31 |
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| WASHINGTON MUTUAL MORT SEC CORP WAMU MO PS TH CE SE 03 AR9 | Dec 31 |
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| WASHINGTON MUTUAL MORT SEC CORP WAMU MOR PAS TH CE SE 03 AR7 | Dec 31 |
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| Washington Mutual MSC Mortgage Pass-Through Certificates, Series 2004-RA3 | Dec 31 |
| Washington Mutual MSC Mortgage Pass-Through Certificates, Series 2004-RA4 | Dec 31 |
| Washington Mutual MSC Mortgage Pass-Through Certificates, Series 2005-RA1 | Dec 31 |
| WASHINGTON MUTUAL MSC MORT PASS THR CERT SER 2003 MS8 | Dec 31 |
| WASHINGTON MUTUAL MSC MORT PASS THR CERTS SER 2003-AR1 | Dec 31 |
| WASHINGTON MUTUAL MSC MORT PASS THR CERTS SER 2003-MS9 | Dec 31 |
| WASHINGTON MUTUAL MSC MORT PASS THROUGH CERT SER 2001-MS11 | Dec 31 |
| WASHINGTON MUTUAL MSC MORT PASS-THROUGH CERT SER 2001-MS12 | Dec 31 |
| WASHINGTON MUTUAL MSC MORT PASS THROUGH CERT SER 2002-MS1 | Dec 31 |
| WASHINGTON MUTUAL MSC MORT PASS THROUGH CERT SER 2002-MS6 | Dec 31 |
| WASHINGTON MUTUAL MSC MORT PASS THROUGH CERT SER 2003-MS3 | Dec 31 |
| WASHINGTON MUTUAL MSC MORT PASS THROUGH CERT SERIES 2003-MS6 | Dec 31 |
| WASHINGTON MUTUAL MSC MORT PASS THRU CERT SER 2002-MS10 | Dec 31 |