Tranche A
Tranche B
Tranche C
Tranche D
Structure
Collateral Pool-Borrowers
Originator
Installments
Special
Purpose
Vehicle
Sell Collateral Pool
Proceeds
Collections
Account(Overseen
by Trustee)
Payments from
borrowers
deposited by
Originator
Issue
Tranches
Proceeds
Payments passed through in
order of Priority to investors
Consideration
Placement of
bonds
Investors
Model information-Cash Flow Analysis
Collateral Pool
Defaults and
Prepayment stresses
Rating specific Default
and Loss rates and CPR
applied
Cash Flow Waterfall and Priorities of Payments
Purpose
•The excel Cash Flow model replicates the waterfall and
priorities of payments to generate scenario based pro-forma
cash flows.
Scenarios
• Each scenario is a rating specific loss scenario that runs from a
hypothetical recession from a starting month to ending month.
• A Prepayment stress is also modeled that runs from a start
month to an end month. Greater the prepayment rate, lesser
the excess spread and more stressful the scenario.
Ultimate Principal
• We test for ultimate
principal given the
pass through nature
of the notes .
•A Tranche would
pass a rating level if
it gets redeemed by
its legal final maturity
date
Timely Interest
• A Tranche passes a
rating level if it is paid
its interest accrued
on all interest
payment dates up to
its redemption date
Rating Level
• A Tranche is
assigned a rating if it
passes on the above
2 tests at the highest
rating level tested
Model Output
Deal Structure
Assets
Starting Balance Margin Type First Payment Date Maturity Date Maturity(Months)
€ 100,000,000 7.50% Fixed 15-Jan-16 15-Dec-24 108
Liabilities
Tranche Starting Balance Type Index Margin Subordination
A € 45,000,000 Floating 1 Month Euribor 1.50% 55.00%
B € 25,000,000 Floating 1 Month Euribor 2.00% 30.00%
C € 20,000,000 Floating 1 Month Euribor 3.00% 10.00%
D € 10,000,000 Floating 1 Month Euribor 3.50% 0.00%
Total € 100,000,000
Date and timing
Closing date 15-Dec-15
First notes Payment Date 15-Jan-16
Notes Legal Final Maturity date 15-Dec-25
Day Count Fraction Actual/360
Payment Frequency Monthly
Senior Fees
Trustee Fee 0.15%
Servicer Fee 0.20%
Administrative Fee 0.05%
Fee charged as a % of the previous' month ending
collateral balance
Deal structure
Waterfall Use Interest Proceeds Use Principal Proceeds
1. Trustee Fee  
2. Servicer Fee  
3. Administrative Fee  
4. Tranche A interest  
5. Tranche B Interest  
6. Tranche C Interest  
7. Tranche D Interest  
8. Tranche A principal (until Tranche is redeemed)  
9. Tranche B principal (until Tranche is redeemed)  
10. Tranche C principal (until Tranche is redeemed)  
11. Tranche D principal (until Tranche is redeemed)  
12. Release to excess spread  
Senior Fee Payments
Interest Payments
Principal Payments
Retained by SPV
Model Assumptions
Recession
Simulation
The model stresses cash flows by applying a recession that runs from a start month to an end
month. This scenario results in foreclosures-leading to defaults and recoveries applied equally
across the months. This has 2 components
Prepayments
The model applies prepayments to the collateral pool. Although prepayments accelerate the
redemption of the notes, they also reduce the balance faster, resulting in lesser overall interest
collections to service the interest on the liabilities This is entered as an annualized value (CPR)
Interest Rates
The structure has fixed rate assets-but floating rate liabilities (indexed to 1 month Euribor). An
adverse movement in interest rates can increase interest liabilities. Entered as a vector
Default Rate
The proportion of the
beginning balance that
defaults
Loss Severity
The proportion of the
defaulted balance that is
lost and not recovered
Net Loss
The proportion of the
beginning balance that is
lost
The Rating Process
Rating Level Default Multiple Loss Multiple Defaults Applied Losses Applied Net Loss
AAA 2.7 2.7 95% 68% 63.79%
AA 2.2 2.2 77% 55% 42.35%
A 2 2 70% 50% 35.00%
BBB 1.5 1.5 53% 38% 19.69%
BB 1.2 1.2 42% 30% 12.60%
B 1 1 35% 25% 8.75%
Defaults
Default stresses Yes
Defaults Applied 42%
Losses Applied 30%
Defaults and losses start month 1
Defaults and losses end month 36
Prepayments
Prepayment stresses Yes
Annualized CPR 5%
Prepayment start month 1
Prepayment end month 36
Model Output
Tranche Timely Interest Ultimate Principal
A PASS PASS
B PASS PASS
C PASS PASS
D FAIL FAIL
Rating level dependent
stress factors
Constant CPR level of
5% for all scenarios
Model Results
B level (base case) – 35% (Default Rate) × 25% ( Loss Severity)
All Tranches pass at this
level
€ -
€ 0.50
€ 1.00
€ 1.50
€ 2.00
€ 2.50
€ 3.00
01/Jan/16
01/Apr/16
01/Jul/16
01/Oct/16
01/Jan/17
01/Apr/17
01/Jul/17
01/Oct/17
01/Jan/18
01/Apr/18
01/Jul/18
01/Oct/18
01/Jan/19
01/Apr/19
01/Jul/19
01/Oct/19
01/Jan/20
01/Apr/20
01/Jul/20
01/Oct/20
01/Jan/21
01/Apr/21
01/Jul/21
01/Oct/21
01/Jan/22
01/Apr/22
01/Jul/22
01/Oct/22
01/Jan/23
01/Apr/23
01/Jul/23
01/Oct/23
01/Jan/24
01/Apr/24
01/Jul/24
01/Oct/24
Millions
Collateral Payments
Recoveries Scheduled Principal Prepayments Interest
€ - € 10.00 € 20.00 € 30.00 € 40.00 € 50.00 € 60.00 € 70.00 € 80.00 € 90.00 € 100.00
A
B
C
D
Millions
Notes Redemption
A B C D Unpaid Principal
Model Results
BB level – 42% (Default Rate) × 30% ( Loss Severity)
Tranches A,B, and C pass at this level
€ -
€ 0.50
€ 1.00
€ 1.50
€ 2.00
€ 2.50
€ 3.00
01/Jan/16
01/Apr/16
01/Jul/16
01/Oct/16
01/Jan/17
01/Apr/17
01/Jul/17
01/Oct/17
01/Jan/18
01/Apr/18
01/Jul/18
01/Oct/18
01/Jan/19
01/Apr/19
01/Jul/19
01/Oct/19
01/Jan/20
01/Apr/20
01/Jul/20
01/Oct/20
01/Jan/21
01/Apr/21
01/Jul/21
01/Oct/21
01/Jan/22
01/Apr/22
01/Jul/22
01/Oct/22
01/Jan/23
01/Apr/23
01/Jul/23
01/Oct/23
01/Jan/24
01/Apr/24
01/Jul/24
01/Oct/24
Millions
Collateral Payments
Recoveries Scheduled Principal Prepayments Interest
€ - € 10.00 € 20.00 € 30.00 € 40.00 € 50.00 € 60.00 € 70.00 € 80.00 € 90.00 € 100.00
A
B
C
D
Millions
Notes Redemption
A B C D Unpaid Principal
Model Results
BBB level – 53% (Default Rate) × 38% ( Loss Severity)
Tranches A and B pass at this level
€ -
€ 0.50
€ 1.00
€ 1.50
€ 2.00
€ 2.50
€ 3.00
01/Jan/16
01/Apr/16
01/Jul/16
01/Oct/16
01/Jan/17
01/Apr/17
01/Jul/17
01/Oct/17
01/Jan/18
01/Apr/18
01/Jul/18
01/Oct/18
01/Jan/19
01/Apr/19
01/Jul/19
01/Oct/19
01/Jan/20
01/Apr/20
01/Jul/20
01/Oct/20
01/Jan/21
01/Apr/21
01/Jul/21
01/Oct/21
01/Jan/22
01/Apr/22
01/Jul/22
01/Oct/22
01/Jan/23
01/Apr/23
01/Jul/23
01/Oct/23
01/Jan/24
01/Apr/24
01/Jul/24
01/Oct/24
Millions
Collateral Payments
Recoveries Scheduled Principal Prepayments Interest
€ - € 10.00 € 20.00 € 30.00 € 40.00 € 50.00 € 60.00 € 70.00 € 80.00 € 90.00 € 100.00
A
B
C
D
Millions
Notes Redemption
A B C D Unpaid Principal
Model Results
A level – 70% (Default Rate) × 50% ( Loss Severity)
Tranches A and B pass at this level
€ -
€ 0.50
€ 1.00
€ 1.50
€ 2.00
€ 2.50
€ 3.00
01/Jan/16
01/Apr/16
01/Jul/16
01/Oct/16
01/Jan/17
01/Apr/17
01/Jul/17
01/Oct/17
01/Jan/18
01/Apr/18
01/Jul/18
01/Oct/18
01/Jan/19
01/Apr/19
01/Jul/19
01/Oct/19
01/Jan/20
01/Apr/20
01/Jul/20
01/Oct/20
01/Jan/21
01/Apr/21
01/Jul/21
01/Oct/21
01/Jan/22
01/Apr/22
01/Jul/22
01/Oct/22
01/Jan/23
01/Apr/23
01/Jul/23
01/Oct/23
01/Jan/24
01/Apr/24
01/Jul/24
01/Oct/24
Millions
Collateral Payments
Recoveries Scheduled Principal Prepayments Interest
€ - € 10.00 € 20.00 € 30.00 € 40.00 € 50.00 € 60.00 € 70.00 € 80.00 € 90.00 € 100.00
A
B
C
D
Millions
Notes Redemption
A B C D Unpaid Principal
€ - € 10.00 € 20.00 € 30.00 € 40.00 € 50.00 € 60.00 € 70.00 € 80.00 € 90.00 € 100.00
A
B
C
D
Millions
Notes Redemption
A B C D Unpaid Principal
Model Results
AA level – 77% (Default Rate) × 55% ( Loss Severity)
Only Tranche A passes at this level
€ -
€ 0.50
€ 1.00
€ 1.50
€ 2.00
€ 2.50
€ 3.00
01/Jan/16
01/Apr/16
01/Jul/16
01/Oct/16
01/Jan/17
01/Apr/17
01/Jul/17
01/Oct/17
01/Jan/18
01/Apr/18
01/Jul/18
01/Oct/18
01/Jan/19
01/Apr/19
01/Jul/19
01/Oct/19
01/Jan/20
01/Apr/20
01/Jul/20
01/Oct/20
01/Jan/21
01/Apr/21
01/Jul/21
01/Oct/21
01/Jan/22
01/Apr/22
01/Jul/22
01/Oct/22
01/Jan/23
01/Apr/23
01/Jul/23
01/Oct/23
01/Jan/24
01/Apr/24
01/Jul/24
01/Oct/24
Millions
Collateral Payments
Recoveries Scheduled Principal Prepayments Interest
Model Results
AAA level – 95% (Default Rate) × 68% ( Loss Severity)
Only Tranche A passes at this level
€ -
€ 0.50
€ 1.00
€ 1.50
€ 2.00
€ 2.50
€ 3.00
01/Jan/16
01/Apr/16
01/Jul/16
01/Oct/16
01/Jan/17
01/Apr/17
01/Jul/17
01/Oct/17
01/Jan/18
01/Apr/18
01/Jul/18
01/Oct/18
01/Jan/19
01/Apr/19
01/Jul/19
01/Oct/19
01/Jan/20
01/Apr/20
01/Jul/20
01/Oct/20
01/Jan/21
01/Apr/21
01/Jul/21
01/Oct/21
01/Jan/22
01/Apr/22
01/Jul/22
01/Oct/22
01/Jan/23
01/Apr/23
01/Jul/23
01/Oct/23
01/Jan/24
01/Apr/24
01/Jul/24
01/Oct/24
Millions
Collateral Payments
Recoveries Scheduled Principal Prepayments Interest
€ - € 10.00 € 20.00 € 30.00 € 40.00 € 50.00 € 60.00 € 70.00 € 80.00 € 90.00 € 100.00
A
B
C
D
Millions
Notes Redemption
A B C D Unpaid Principal
Model Results-Summary
Ratings Assumptions
Rating Level
Default
Multiple Loss Multiple Defaults Applied Losses Applied Net Loss Tranches Passed
AAA 2.7 2.7 95% 68% 63.79% A
AA 2.2 2.2 77% 55% 42.35% A
A 2 2 70% 50% 35.00% A,B
BBB 1.5 1.5 53% 38% 19.69% A,B
BB 1.2 1.2 42% 30% 12.60% A,B,C
B 1 1 35% 25% 8.75% A,B,C,D
CPR:5%
Tranche Rating Level
A AAA
B A
C BB
D B

Cash flow model-Securitization Rating

  • 2.
    Tranche A Tranche B TrancheC Tranche D Structure Collateral Pool-Borrowers Originator Installments Special Purpose Vehicle Sell Collateral Pool Proceeds Collections Account(Overseen by Trustee) Payments from borrowers deposited by Originator Issue Tranches Proceeds Payments passed through in order of Priority to investors Consideration Placement of bonds Investors
  • 3.
    Model information-Cash FlowAnalysis Collateral Pool Defaults and Prepayment stresses Rating specific Default and Loss rates and CPR applied Cash Flow Waterfall and Priorities of Payments Purpose •The excel Cash Flow model replicates the waterfall and priorities of payments to generate scenario based pro-forma cash flows. Scenarios • Each scenario is a rating specific loss scenario that runs from a hypothetical recession from a starting month to ending month. • A Prepayment stress is also modeled that runs from a start month to an end month. Greater the prepayment rate, lesser the excess spread and more stressful the scenario. Ultimate Principal • We test for ultimate principal given the pass through nature of the notes . •A Tranche would pass a rating level if it gets redeemed by its legal final maturity date Timely Interest • A Tranche passes a rating level if it is paid its interest accrued on all interest payment dates up to its redemption date Rating Level • A Tranche is assigned a rating if it passes on the above 2 tests at the highest rating level tested Model Output
  • 4.
    Deal Structure Assets Starting BalanceMargin Type First Payment Date Maturity Date Maturity(Months) € 100,000,000 7.50% Fixed 15-Jan-16 15-Dec-24 108 Liabilities Tranche Starting Balance Type Index Margin Subordination A € 45,000,000 Floating 1 Month Euribor 1.50% 55.00% B € 25,000,000 Floating 1 Month Euribor 2.00% 30.00% C € 20,000,000 Floating 1 Month Euribor 3.00% 10.00% D € 10,000,000 Floating 1 Month Euribor 3.50% 0.00% Total € 100,000,000 Date and timing Closing date 15-Dec-15 First notes Payment Date 15-Jan-16 Notes Legal Final Maturity date 15-Dec-25 Day Count Fraction Actual/360 Payment Frequency Monthly Senior Fees Trustee Fee 0.15% Servicer Fee 0.20% Administrative Fee 0.05% Fee charged as a % of the previous' month ending collateral balance
  • 5.
    Deal structure Waterfall UseInterest Proceeds Use Principal Proceeds 1. Trustee Fee   2. Servicer Fee   3. Administrative Fee   4. Tranche A interest   5. Tranche B Interest   6. Tranche C Interest   7. Tranche D Interest   8. Tranche A principal (until Tranche is redeemed)   9. Tranche B principal (until Tranche is redeemed)   10. Tranche C principal (until Tranche is redeemed)   11. Tranche D principal (until Tranche is redeemed)   12. Release to excess spread   Senior Fee Payments Interest Payments Principal Payments Retained by SPV
  • 6.
    Model Assumptions Recession Simulation The modelstresses cash flows by applying a recession that runs from a start month to an end month. This scenario results in foreclosures-leading to defaults and recoveries applied equally across the months. This has 2 components Prepayments The model applies prepayments to the collateral pool. Although prepayments accelerate the redemption of the notes, they also reduce the balance faster, resulting in lesser overall interest collections to service the interest on the liabilities This is entered as an annualized value (CPR) Interest Rates The structure has fixed rate assets-but floating rate liabilities (indexed to 1 month Euribor). An adverse movement in interest rates can increase interest liabilities. Entered as a vector Default Rate The proportion of the beginning balance that defaults Loss Severity The proportion of the defaulted balance that is lost and not recovered Net Loss The proportion of the beginning balance that is lost
  • 7.
    The Rating Process RatingLevel Default Multiple Loss Multiple Defaults Applied Losses Applied Net Loss AAA 2.7 2.7 95% 68% 63.79% AA 2.2 2.2 77% 55% 42.35% A 2 2 70% 50% 35.00% BBB 1.5 1.5 53% 38% 19.69% BB 1.2 1.2 42% 30% 12.60% B 1 1 35% 25% 8.75% Defaults Default stresses Yes Defaults Applied 42% Losses Applied 30% Defaults and losses start month 1 Defaults and losses end month 36 Prepayments Prepayment stresses Yes Annualized CPR 5% Prepayment start month 1 Prepayment end month 36 Model Output Tranche Timely Interest Ultimate Principal A PASS PASS B PASS PASS C PASS PASS D FAIL FAIL Rating level dependent stress factors Constant CPR level of 5% for all scenarios
  • 8.
    Model Results B level(base case) – 35% (Default Rate) × 25% ( Loss Severity) All Tranches pass at this level € - € 0.50 € 1.00 € 1.50 € 2.00 € 2.50 € 3.00 01/Jan/16 01/Apr/16 01/Jul/16 01/Oct/16 01/Jan/17 01/Apr/17 01/Jul/17 01/Oct/17 01/Jan/18 01/Apr/18 01/Jul/18 01/Oct/18 01/Jan/19 01/Apr/19 01/Jul/19 01/Oct/19 01/Jan/20 01/Apr/20 01/Jul/20 01/Oct/20 01/Jan/21 01/Apr/21 01/Jul/21 01/Oct/21 01/Jan/22 01/Apr/22 01/Jul/22 01/Oct/22 01/Jan/23 01/Apr/23 01/Jul/23 01/Oct/23 01/Jan/24 01/Apr/24 01/Jul/24 01/Oct/24 Millions Collateral Payments Recoveries Scheduled Principal Prepayments Interest € - € 10.00 € 20.00 € 30.00 € 40.00 € 50.00 € 60.00 € 70.00 € 80.00 € 90.00 € 100.00 A B C D Millions Notes Redemption A B C D Unpaid Principal
  • 9.
    Model Results BB level– 42% (Default Rate) × 30% ( Loss Severity) Tranches A,B, and C pass at this level € - € 0.50 € 1.00 € 1.50 € 2.00 € 2.50 € 3.00 01/Jan/16 01/Apr/16 01/Jul/16 01/Oct/16 01/Jan/17 01/Apr/17 01/Jul/17 01/Oct/17 01/Jan/18 01/Apr/18 01/Jul/18 01/Oct/18 01/Jan/19 01/Apr/19 01/Jul/19 01/Oct/19 01/Jan/20 01/Apr/20 01/Jul/20 01/Oct/20 01/Jan/21 01/Apr/21 01/Jul/21 01/Oct/21 01/Jan/22 01/Apr/22 01/Jul/22 01/Oct/22 01/Jan/23 01/Apr/23 01/Jul/23 01/Oct/23 01/Jan/24 01/Apr/24 01/Jul/24 01/Oct/24 Millions Collateral Payments Recoveries Scheduled Principal Prepayments Interest € - € 10.00 € 20.00 € 30.00 € 40.00 € 50.00 € 60.00 € 70.00 € 80.00 € 90.00 € 100.00 A B C D Millions Notes Redemption A B C D Unpaid Principal
  • 10.
    Model Results BBB level– 53% (Default Rate) × 38% ( Loss Severity) Tranches A and B pass at this level € - € 0.50 € 1.00 € 1.50 € 2.00 € 2.50 € 3.00 01/Jan/16 01/Apr/16 01/Jul/16 01/Oct/16 01/Jan/17 01/Apr/17 01/Jul/17 01/Oct/17 01/Jan/18 01/Apr/18 01/Jul/18 01/Oct/18 01/Jan/19 01/Apr/19 01/Jul/19 01/Oct/19 01/Jan/20 01/Apr/20 01/Jul/20 01/Oct/20 01/Jan/21 01/Apr/21 01/Jul/21 01/Oct/21 01/Jan/22 01/Apr/22 01/Jul/22 01/Oct/22 01/Jan/23 01/Apr/23 01/Jul/23 01/Oct/23 01/Jan/24 01/Apr/24 01/Jul/24 01/Oct/24 Millions Collateral Payments Recoveries Scheduled Principal Prepayments Interest € - € 10.00 € 20.00 € 30.00 € 40.00 € 50.00 € 60.00 € 70.00 € 80.00 € 90.00 € 100.00 A B C D Millions Notes Redemption A B C D Unpaid Principal
  • 11.
    Model Results A level– 70% (Default Rate) × 50% ( Loss Severity) Tranches A and B pass at this level € - € 0.50 € 1.00 € 1.50 € 2.00 € 2.50 € 3.00 01/Jan/16 01/Apr/16 01/Jul/16 01/Oct/16 01/Jan/17 01/Apr/17 01/Jul/17 01/Oct/17 01/Jan/18 01/Apr/18 01/Jul/18 01/Oct/18 01/Jan/19 01/Apr/19 01/Jul/19 01/Oct/19 01/Jan/20 01/Apr/20 01/Jul/20 01/Oct/20 01/Jan/21 01/Apr/21 01/Jul/21 01/Oct/21 01/Jan/22 01/Apr/22 01/Jul/22 01/Oct/22 01/Jan/23 01/Apr/23 01/Jul/23 01/Oct/23 01/Jan/24 01/Apr/24 01/Jul/24 01/Oct/24 Millions Collateral Payments Recoveries Scheduled Principal Prepayments Interest € - € 10.00 € 20.00 € 30.00 € 40.00 € 50.00 € 60.00 € 70.00 € 80.00 € 90.00 € 100.00 A B C D Millions Notes Redemption A B C D Unpaid Principal
  • 12.
    € - €10.00 € 20.00 € 30.00 € 40.00 € 50.00 € 60.00 € 70.00 € 80.00 € 90.00 € 100.00 A B C D Millions Notes Redemption A B C D Unpaid Principal Model Results AA level – 77% (Default Rate) × 55% ( Loss Severity) Only Tranche A passes at this level € - € 0.50 € 1.00 € 1.50 € 2.00 € 2.50 € 3.00 01/Jan/16 01/Apr/16 01/Jul/16 01/Oct/16 01/Jan/17 01/Apr/17 01/Jul/17 01/Oct/17 01/Jan/18 01/Apr/18 01/Jul/18 01/Oct/18 01/Jan/19 01/Apr/19 01/Jul/19 01/Oct/19 01/Jan/20 01/Apr/20 01/Jul/20 01/Oct/20 01/Jan/21 01/Apr/21 01/Jul/21 01/Oct/21 01/Jan/22 01/Apr/22 01/Jul/22 01/Oct/22 01/Jan/23 01/Apr/23 01/Jul/23 01/Oct/23 01/Jan/24 01/Apr/24 01/Jul/24 01/Oct/24 Millions Collateral Payments Recoveries Scheduled Principal Prepayments Interest
  • 13.
    Model Results AAA level– 95% (Default Rate) × 68% ( Loss Severity) Only Tranche A passes at this level € - € 0.50 € 1.00 € 1.50 € 2.00 € 2.50 € 3.00 01/Jan/16 01/Apr/16 01/Jul/16 01/Oct/16 01/Jan/17 01/Apr/17 01/Jul/17 01/Oct/17 01/Jan/18 01/Apr/18 01/Jul/18 01/Oct/18 01/Jan/19 01/Apr/19 01/Jul/19 01/Oct/19 01/Jan/20 01/Apr/20 01/Jul/20 01/Oct/20 01/Jan/21 01/Apr/21 01/Jul/21 01/Oct/21 01/Jan/22 01/Apr/22 01/Jul/22 01/Oct/22 01/Jan/23 01/Apr/23 01/Jul/23 01/Oct/23 01/Jan/24 01/Apr/24 01/Jul/24 01/Oct/24 Millions Collateral Payments Recoveries Scheduled Principal Prepayments Interest € - € 10.00 € 20.00 € 30.00 € 40.00 € 50.00 € 60.00 € 70.00 € 80.00 € 90.00 € 100.00 A B C D Millions Notes Redemption A B C D Unpaid Principal
  • 14.
    Model Results-Summary Ratings Assumptions RatingLevel Default Multiple Loss Multiple Defaults Applied Losses Applied Net Loss Tranches Passed AAA 2.7 2.7 95% 68% 63.79% A AA 2.2 2.2 77% 55% 42.35% A A 2 2 70% 50% 35.00% A,B BBB 1.5 1.5 53% 38% 19.69% A,B BB 1.2 1.2 42% 30% 12.60% A,B,C B 1 1 35% 25% 8.75% A,B,C,D CPR:5% Tranche Rating Level A AAA B A C BB D B