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Taco Tuesday · Episode 17

Asset-Backed Securities on the Menu — The Everything But the House Taco

Unbearably Bullish with Donald B. Johns III · Oct 27, 2026 · 18 min

Show Notes

Car loans, credit cards and equipment leases packaged into investments. Tranches, credit enhancement, the payment waterfall and the SCAN test.

Taco Tuesday #17

You make a car payment. Someone pays a credit card bill. A construction company leases a new excavator. A homeowner finances solar panels. To each borrower, it's another monthly obligation.

But somewhere inside the capital markets, thousands of those payments may be collected, packaged, sliced into layers, and served to investors.

Welcome to Wall Street's cash flow kitchen, where the ingredients are debt, the recipe is securitization, and the taco comes with a payment waterfall. But before Wall Street serves the yield, we need to ask: who inspected the ingredients?

In this Taco Tuesday episode of the Unbearably Bullish Podcast, Donald Johns breaks down how asset-backed securities turn everyday loans, leases, and receivables into investments, and how to examine the collateral, structure, and risks behind them.

In This Episode

  • The cash flow drive-thru: how an asset-backed security is built
  • The everything but the house taco: auto loans, credit cards, equipment leases, solar, student loans, and more
  • Why two "asset-backed" securities can carry completely different financial DNA
  • The tranche counter: senior, mezzanine, and residual windows
  • The credit enhancement condiment bar: subordination, overcollateralization, excess spread, reserves, guarantees, and triggers
  • The payment waterfall: who gets served first and who may leave hungry
  • The five-alarm risk board: credit, prepayment, extension, structural and model, and liquidity risk
  • The SCAN test: Source, Collateral, Architecture, Negative scenario
  • Bull vs. Bear: efficient capital or harder-to-see risk?
  • The 10-question asset-backed inspection card
  • This week's Taco Tuesday challenge: trace one monthly payment through the capital markets
  • The Bull's Bottom Line

Inside Wall Street's cash flow kitchen, every monthly payment is an ingredient, but every ingredient carries a risk.

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  • Bull or bear: does securitization make the financial system more efficient, or can it make risk harder to see? Tell us in the comments

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