MOODY'S RATES STRUCTURED ASSET SECURITIES CORP TRUST 2003-37A
Approximately $1.5 Billion of Mortgage-Backed Securities Rated.
New York, December 23, 2003 -- Moody's Investors Service has assigned Aaa ratings to the senior investor
certificates issued by Structured Asset Securities Corporation 2003-37A.
Moody's also rated two of the mezzanine investor certificates Aa2.
The ratings of the certificates are based on the quality of the collateral
and the credit subordination of the respective certificates, according
to George DeMarco, a Moody's analyst.
The mortgage loans backing the series 2003-37A certificates are
lower loan-to-value (LTV) Alternative "A" and jumbo quality
6-Month LIBOR and Hybrid ARM loans. The mortgage loans backing
the deal are divided into eight distinct pools or "certificate groups".
All of the 6-Month LIBOR ARMs reside in Pool 1 while Hybrid ARMs
make up the entirety of Pools 2 through 8. Nearly 84% of
the LIBOR ARMs and approximately 81% of the Hybrid ARMs are interest-only
(IO) loans for the first five to ten years of their respective lives.
Following IO period, the monthly payment on each such loan will
increase to an amount sufficient to fully amortize the outstanding principal
balance over its remaining term.
Aurora Loan Services ("ALS") originated approximately 74% of the
mortgage loans in the securitization. The loans that are not ALS
originations were originated by various other lenders, each with
a relatively small participation in the mortgage loan collateral.
The loan pool is of average quality when compared to other recent issues
with combined prime and "Alternative A" collateral. Weighted-average
LTV and FICO scores are approximately 71% and 724, respectively,
for the 6-Month LIBOR loans and approximately 69% and 720,
respectively, for the Hybrid ARM loans.
The Series 2003-37A certificates receive credit support from subordination.
The Aaa-rated certificates are protected by subordination amounting
to 6.50% for the 6-Month LIBOR ARMs and 5.00%
for the Hybrid ARMs. Pools 2 through 8 are cross-collateralized.
The rating action is as follows:
Issuer: Structured Asset Securities Corporation, Series 2003-37A
$112,844,000 Adjustable-Rate Class 1-A
Pass-Through Certificates, rated Aaa
$121,913,000 Adjustable-Rate Class 2-A
Pass-Through Certificates, rated Aaa
$50,000,000 Variable-Rate Class 3-A1
Pass-Through Certificates, rated Aaa
$25,476,000 Variable-Rate Class 3-A2
Pass-Through Certificates, rated Aaa
$11,632,000 Variable-Rate Class 3-A3
Pass-Through Certificates, rated Aaa
$19,223,000 Variable-Rate Class 3-A4
Pass-Through Certificates, rated Aaa
$16,568,000 Variable-Rate Class 3-A5
Pass-Through Certificates, rated Aaa
$37,874,000 Variable-Rate Class 3-A6
Pass-Through Certificates, rated Aaa
$400,000,000 Variable-Rate Class 3-A7
Pass-Through Certificates, rated Aaa
4.52% Interest-Only Class 3-A8 Pass-Through
Certificates, rated Aaa
4.52% Interest-Only Class 3-AX Pass-Through
Certificates, rated Aaa
4.52% Interest-Only Class 3-PAX Pass-Through
Certificates, rated Aaa
$140,064,000 Variable-Rate Class 4-A
Pass-Through Certificates, rated Aaa
4.05% Interest Only Class 4-AX Pass-Through
Certificates, rated Aaa
$112,211,000 Variable-Rate Class 5-A
Pass-Through Certificates, rated Aaa
5.07% Interest-Only Class 5-AX Pass-Through
Certificates, rated Aaa
5.07% Interest-Only Class 5-PAX Pass-Through
Certificates, rated Aaa
$64,849,000 Adjustable-Rate Class 6-A
Pass-Through Certificates, rated Aaa
$137,434,000 Adjustable-Rate Class 7-A
Pass-Through Certificates, rated Aaa
$150,000,000 Variable-Rate Class 8-A1
Pass-Through Certificates, rated Aaa
$55,423,000 Adjustable-Rate Class 8-A2
Pass-Through Certificates, rated Aaa
4.60% Interest-Only Class 8-AX Pass-Through
Certificates, rated Aaa
$100 Adjustable-Rate Class R Pass-Through Certificates,
rated Aaa
$3,198,000 Variable-Rate Class B1-I Pass-Through
Certificates, rated Aa2
Adjustable-Rate Interest-Only Class B1-I-X
Pass-Through Certificates, rated Aa2
ALS is the Master Servicer for the transaction. ALS will service
approximately 81% of the mortgage loans. Other primary servicers
and their respective approximate servicing percentages are SIB Mortgage
Company (12.2%), Wells Fargo (5.5%)
and Colonial Savings (1.1%).
Additional research will be available on http://www.moodys.com.
New York
Jay A. Siegel
Managing Director
Structured Finance Group
Moody's Investors Service
JOURNALISTS: 212-553-0376
SUBSCRIBERS: 212-553-1653
New York
George J. DeMarco
Asst Vice President - Analyst
Structured Finance Group
Moody's Investors Service
JOURNALISTS: 212-553-0376
SUBSCRIBERS: 212-553-1653