Fitch Rates $881.55MM CSFB Home Equity Pass-Through Ctfs, Series 2005-9

NEW YORK--CSFB's home equity pass-through certificates, series 2005-9, are rated by Fitch Ratings as follows:

-- $705,150,100 classes 1-A-1, 2-A-1, 2-A-2, 2-A-3, 2-A-4, R, R-II, and non-offered class P 'AAA';

-- $34,200,000 class M-1 'AA+';

-- $30,150,000 class M-2 'AA+';

-- $21,150,000 class M-3 'AA';

-- $14,850,000 class M-4 'AA-';

-- $14,850,000 class M-5 'A+';

-- $13,000,000 class M-6 'A';

-- $13,500,000 class M-7 'A-';

-- $9,500,000 class M-8 'BBB+';

-- $9,000,000 class B-1 'BBB';

-- $7,200,000 class B-2 'BBB';

-- $9,000,000 class B-3 'BBB-'.

The 'AAA' rating on the senior certificates reflects the 21.65% total credit enhancement provided by the 3.80% class M-1, the 3.35% class M-2, the 2.35% class M-3, the 1.65% class M-4, the 1.65% class M-5, the 1.44% class M-6, the 1.50% class M-7, the 1.06% class M-8, the 1.00% class B-1, the 0.80% class B-2, the 1.00% class B-3, the 0.75% class B-4 (not rated by Fitch), the 0.30% class B-5 (not rated by Fitch), and the 1.00% initial overcollateralization (OC). All certificates have the benefit of monthly excess cash flow to absorb losses. In addition, the ratings reflect the quality of the loans, the integrity of the transaction's legal structure, as well as the primary servicing capabilities of Wells Fargo Bank, N.A. (rated 'RPS1' by Fitch), Ocwen Loan Servicing, LLC (rated 'RPS2' by Fitch) and Select Portfolio Servicing, Inc. (rated 'RPS2-' by Fitch). U.S. Bank N.A. will act as trustee.

The mortgage pool consists of first- and second lien fixed- and variable-rate subprime mortgage loans with an initial aggregate principal balance of $815,969,623. On the closing date, the depositor will deposit approximately $84,030,477 into a prefunding account. The amount in this account will be used to purchase subsequent mortgage loans after the closing date and on or prior to Feb. 24, 2006.

The group 1 loans have an initial aggregate principal balance of $272,679,128. As of the cut-off date, the weighted average loan rate is approximately 7.11%, and the weighted average FICO is 626. The weighted average remaining term to maturity is 357 months. The average cut-off date principal balance of the mortgage loans is approximately $170,424. The weighted average original loan-to-value ratio is 78.9%. The properties are primarily located in California (29.4%), Florida (10.4%), Illinois (6.6%), Maryland (5.4%), and Arizona (4.3%).

The group 2 loans have an initial aggregate principal balance of $543,290,495. As of the cut-off date, the weighted average loan rate is approximately 7.16%, and the weighted average FICO is 633. The weighted average remaining term to maturity is 356 months. The average cut-off date principal balance of the mortgage loans is approximately $213,222. The weighted average original loan-to-value ratio is 80.4%. The properties are primarily located in California (38.9%), Florida (10.3%), New York (4.4%), and Arizona (4.4%).

All of the mortgage loans were purchased by an affiliate of the depositor from various sellers in secondary market transactions. For federal income tax purposes, an election will be made to treat the trust as multiple real estate mortgage investment conduits (REMICs).

Fitch's rating definitions and the terms of use of such ratings are available on the agency's public site, www.fitchratings.com. Published ratings, criteria and methodologies are available from this site, at all times. Fitch's code of conduct, confidentiality, conflicts of interest, affiliate firewall, compliance and other relevant policies and procedures are also available from the 'Code of Conduct' section of this site.

What are people saying about mortgages today:

Rates on 30-year mortgages edged down last week to a seven-month low. Mortgage-giant Freddie Mac reported Thursday that 30-year, fixed-rate mortgages fell to 6.3 percent, down slightly from 6.31 percent two weeks ago. It put rates at the lowest level since they were at 6.24 percent the first week of March.

Bank of Hawaii, Central Pacific Bank, Territorial Savings Bank and Wells Fargo Home Mortgages all cut their 30-year mortgage rates to 5.75 percent this week.

Most people think of a mortgage as a means to an end. After all, you buy a house, not a home loan. But a mortgage is much more than the path to homeownership. It is a financial instrument that must be managed, just like any other financial investment.