Structured Finance and AI: CLO, ABS, MBS Modeling with Claude

Structured Finance: Complexity at Scale

Structured finance — CLOs, ABS, MBS, CDOs — involves tranching cash flows, applying complex waterfall rules, modeling prepayments and defaults, and pricing credit risk across many scenarios. The computational complexity of these products makes them an ideal fit for AI assistance. Claude with ClaudeFinLab handles the cash flow mechanics while structured finance professionals focus on deal execution and investor communication.

CLO (Collateralized Loan Obligation) Analysis

CLOs are the dominant structure in leveraged finance. Modeling the waterfall is the core analytical challenge:

• "My CLO has: AAA notes $240M at L+135, AA notes $36M at L+185, A notes $24M at L+240, BBB notes $16M at L+360, BB notes $12M at L+575, equity $22M. Collateral is $350M of leveraged loans yielding 7.8% average. Calculate the interest waterfall in priority order and the equity distribution."
• "Test the OC test for the AAA tranche: par value of $328M remaining, AAA notes outstanding $232M. What is the OC ratio and does it pass the 120% trigger? If it fails, model the diversion of interest payments to deleverage the AAA."
• "The CLO has a weighted average spread (WAS) covenant of 3.50%. My current portfolio WAS is 3.28%. What portfolio trades would bring WAS back above 3.50% — assuming I can sell assets at 98 cents and reinvest in assets yielding L+390?"

ABS (Asset-Backed Securities) Cash Flow Modeling

• "This auto loan ABS has a pool of $180M. WAC 5.8%, WAM 52 months, CPR assumption 18%, CDR 1.2%, recovery 45%. Model the monthly cash flows: scheduled principal, prepayments, defaults, recoveries, and net interest. Show for months 1-24."
• "Run a stress scenario: CDR increases to 3.5% (2008 crisis level) and recovery drops to 30%. Which tranches get hit? Calculate the loss to each tranche: Class A ($130M, senior), Class B ($28M, mezzanine), Class C ($22M, subordinate equity)."
• "I am buying a credit card ABS at 99.2 with a stated coupon of 4.75%. The pool has remaining average balance of $2,800, APR 18.9%, monthly payment rate 16.2%, charge-off rate 4.8%. What is the all-in yield to maturity?"

MBS (Mortgage-Backed Securities) and Prepayment Modeling

Prepayment risk is the defining challenge in MBS analysis:

• "Model a 30-year MBS pool: $300M, WAC 6.25%, WAM 354 months. Apply the PSA prepayment model at 150% PSA. Compute the average life and modified duration of the pass-through."
• "Price this agency MBS: 30-year Fannie Mae 5.5% coupon, $25M face, trading at 103-04. The current 30-year mortgage rate is 6.1%. Apply the OAS model: what OAS spread compensates for prepayment risk vs a 5.5% Treasury?"
• "I have a CMO with three tranches: PAC ($100M), companion ($60M), Z-bond ($40M). Apply the PAC band at 100-300 PSA. Show how the companion tranche absorbs prepayment variability at 50 PSA vs 400 PSA scenarios."

Tranche Pricing and Yield Analysis

• "Price the following tranches using OAS pricing: AAA rated 3yr WAL tranche, comparable Libor spread for AAA-rated 3yr is L+45. My tranche has a modeled OAS of L+68. What is the implied dollar price assuming 5.25% discount rate?"
• "Calculate the credit enhancement for each tranche: class sizes are A $400M, B $60M, C $40M. Total pool $500M. What is the subordination level for each class?"

Securitization Documentation Support

Claude accelerates documentation throughout the securitization process:

• Investor presentation (roadshow) deck sections
• Collateral stratification table summaries
• Eligibility criteria and covenant language review
• Rating agency Q&A preparation
• Monthly investor report narrative commentary

CDO and Synthetic Structures

• "Explain the structure of a bespoke synthetic CDO: reference portfolio of 100 corporate credits, $10M notional each. I am selling protection on 3-7% of the capital structure. Compute my maximum loss, probability of loss at various default correlation assumptions (20%, 40%, 60%)."
• "For a cash flow CDO, the coverage tests trigger if OC ratio falls below 100% or IC ratio below 105%. Model what happens to distributions when both tests fail simultaneously: priority shifting, interest diversion, reinvestment suspension."

Recommended MCP Setup

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      "headers": { "Authorization": "Bearer YOUR_API_KEY" }
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    "claudefinlab-portfolio": {
      "url": "https://claudefinancelab.com/portfolio/sse",
      "headers": { "Authorization": "Bearer YOUR_API_KEY" }
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