Approximately $1.1 billion of asset-backed securities affected
New York, February 02, 2011 -- Moody's Investors Service has assigned provisional ratings to the notes
to be issued by Ally Auto Receivables Trust (AART) 2011-1.
RATINGS RATIONALE
The complete rating actions are as follows:
Issuer: Ally Auto Receivables Trust 2011-1
A-1 Notes, rated (P)Prime-1 (sf)
A-2 Notes, rated (P)Aaa (sf)
A-3 Notes, rated (P)Aaa (sf)
A-4 Notes, rated (P)Aaa (sf)
B Notes, rated (P)Aa3 (sf)
C Notes, rated (P)A2 (sf)
The principal methodology used in rating Ally Auto Receivables Trust 2011-1
was Moody's Approach to Rating U.S. Auto Loan-Backed
Securities, rating methodology published in June 2007.
Moody's Investors Service did not receive or take into account a
third party due diligence report on the underlying assets or financial
instruments in this transaction.
Moody's median cumulative net loss expectation for the AART 2011-1
pool is 1.50% and the Volatility Proxy Aaa Level is 10.00%.
Moody's net loss expectation and Volatility Proxy Aaa Level for the AART
2011-1 transaction are derived from an analysis of the credit quality
of the underlying collateral, historical performance trends,
the ability of Ally Financial Inc. to perform the servicing functions,
and expectations for future economic conditions.
The V Score for this transaction is Low/Medium, which is consistent
with the Low/Medium V score assigned for the U.S. Prime
Retail Auto Loan ABS sector. The V Score indicates "Low/Medium"
uncertainty about critical assumptions. While this is only the
eighth retail loan securitization for Ally Bank, the early performance
for the existing deals has been strong. Securitization experience
for Ally Bank's parent, Ally Financial Inc. (formerly
GMAC Inc.), dates back to the mid-1980's.
AART 2011-1 should benefit from this experience having Ally Financial
as the servicer for the transaction. The most notable differences
between the AART 2011-1 securitized pool and the securitized pool
from Ally Bank's most recent auto loan securitization, AART
2010-5, is the higher percentage of contracts with original
terms greater than 60 months (55% for AART 2011-1 and 47%
for AART 2010-5) and a lower weighted average FICO score of 760
for AART 2011-1 versus 763 for AART 2010-5. A higher
percentage of contracts with original terms greater than 60 months typically
has a negative impact on pool performance as does a lower weighted average
FICO score. Nonetheless, a weighted average FICO score of
760 for AART 2011-1 is quite high. In addition, early
performance of Ally Bank retail loan securitizations from 2009 and 2010
is strong to date which is an important consideration along with conducting
a deal-by-deal comparison of collateral.
Moody's V Scores provide a relative assessment of the quality of available
credit information and the potential variability around the various inputs
to a rating determination. The V Score ranks transactions by the
potential for significant rating changes owing to uncertainty around the
assumptions due to data quality, historical performance, the
level of disclosure, transaction complexity, the modeling
and the transaction governance that underlie the ratings. V Scores
apply to the entire transaction (rather than individual tranches).
Moody's Parameter Sensitivities: If the net loss used in determining
the initial rating were changed from 1.50% to 4.00%
the initial model-indicated output might change from Aaa to Aa1
for the Class A notes, from Aa3 to Baa3 for the Class B notes,
and from A2 to B2 for the Class C notes. If the net loss were changed
to 5.00% the initial model-indicated output might
change to Aa2 for the Class A notes, to Ba3 for the Class B notes,
and to below B3 for the Class C notes. If the net loss were changed
to 6.50% the initial model-indicated output might
change to A2 for the Class A notes and below B3 for the Class B and Class
C notes.
Parameter Sensitivities are not intended to measure how the rating of
the security might migrate over time, rather they are designed to
provide a quantitative calculation of how the initial rating might change
if key input parameters used in the initial rating process differed.
The analysis assumes that the deal has not aged. Parameter Sensitivities
only reflect the ratings impact of each scenario from a quantitative/model-indicated
standpoint. Qualitative factors are also taken into consideration
in the ratings process, so the actual ratings that would be assigned
in each case could vary from the information presented in the Parameter
Sensitivity analysis.
Additional research including a pre-sale report for this transaction
is available at www.moodys.com. The special reports,
"Updated Report on V Scores and Parameter Sensitivities for Structured
Finance Securities" and "V Scores and Parameter Sensitivities
in the U.S. Vehicle ABS Sector" are also available
on moodys.com. In addition, Moody's publishes
a weekly summary of structured finance credit, ratings and methodologies,
available to all registered users of our website, at www.moodys.com/SFQuickCheck.
REGULATORY DISCLOSURE
Information sources used to prepare the credit rating are the following:
parties involved in the ratings, parties not involved in the ratings,
public information, and confidential and proprietary Moody's
Investor Service's information.
Moody's Investors Service considers the quality of information available
on the issuer satisfactory for the purposes of assigning a credit rating.
However, the credit rating action was based on limited historical
data.
Moody's adopts all necessary measures so that the information it uses
in assigning a credit rating is of sufficient quality and from sources
Moody's considers to be reliable including, when appropriate,
independent third-party sources. However, Moody's
is not an auditor and cannot in every instance independently verify or
validate information received in the rating process.
Please see ratings tab on the issuer/entity page on Moodys.com
for the last rating action and the rating history.
The date on which some Credit Ratings were first released goes back to
a time before Moody's Investors Service's Credit Ratings were fully digitized
and accurate data may not be available. Consequently, Moody's
Investors Service provides a date that it believes is the most reliable
and accurate based on the information that is available to it.
Please see the ratings disclosure page on our website www.moodys.com
for further information.
Please see the Credit Policy page on Moodys.com for the methodologies
used in determining ratings, further information on the meaning
of each rating category and the definition of default and recovery.
New York
Mack Caldwell
Senior Vice President
Structured Finance Group
Moody's Investors Service
JOURNALISTS: 212-553-0376
SUBSCRIBERS: 212-553-1653
New York
Jason Grohotolski
Vice President - Senior Analyst
Structured Finance Group
Moody's Investors Service
JOURNALISTS: 212-553-0376
SUBSCRIBERS: 212-553-1653
Moody's Investors Service
250 Greenwich Street
New York, NY 10007
U.S.A.
JOURNALISTS: 212-553-0376
SUBSCRIBERS: 212-553-1653
Moody's assigns provisional ratings to Ally Auto Receivables Trust 2011-1