Four specimens, mounted. Each framework, applied to its native class.
Each framework demonstrated on its native class. Method shown, not name called. The Bureau labels engines — not tickers.
Class: large-cap, investment-grade, net-lease REIT — debt paper, erosion.
Long lease maturities — twelve-plus years weighted — supply a wide buffer at issuance. The Bureau reads the compression rate of that buffer when reinvestment spreads narrow against debt costs.
A wide buffer with a fast compression rate has a shorter half-life than a narrow buffer that holds. The Bureau measures the half-life, not the width.
Class: large-cap, investment-grade, self-storage REIT — brass chronometer.
Coverage today reads strong — short lease cycle, monthly resets. Maturity tomorrow reads concentrated — fixed-rate debt towers cluster within five-year windows. Market access reads stable — investment-grade spreads tight.
The Bureau reads all three together. The slowest clock determines durability — not the fastest.
Class: diversified industrial REIT, lower-tier IG — stone, fracture.
A name sitting at BBB- with negative outlook reads structurally distinct from one at BBB- with stable. The Bureau watches the migration vector — leverage trend, coverage ratio drift, and refinancing window — rather than the static notch.
One notch below is not a downgrade — it is a different financing universe. The cliff is institutional.
Class: equity-linked income ETF, option-overlay structure — marble chassis.
The headline yield blends two engines: dividend stream from the underlying basket, and option premium from systematic call-writing. The Bureau separates them — durability of the dividend differs categorically from durability of the premium.
Same yield. Different engines. Different half-lives.
Method shown openly; named-name diagnostics filed at the Vault. This is not a prediction — structural assessment.