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Interest expense on the public debt (FYTD, $bn)

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Interest expense on the public debt (FYTD, $bn)

What it is

Interest expense on the public debt (FYTD, $bn) — registry key interest_expense_fytd_bn.

Gross interest expense on the public debt, fiscal-year-to-date, in billions. Gross (not the MTS ‘net interest’ budget concept). long-end supply-stress carrier, Phase 3A of improvements/long-end-stress.md; scoring deferred to a pre-registered study.

Data-pyramid tier

T0 — Raw input. This metric sits at the raw input layer of the platform’s six-tier data pyramid (T0 raw inputs → T5 actionable read). The tier reflects how far the value is from a raw measurement — not how strongly it is validated. Abstraction and validation are separate axes: a higher tier is not a claim of stronger evidence.

Horizon & validation

No validated skill horizon is on file for this metric — read it as context / a data carrier, not a validated edge. Stamps are added only when a gated research verdict lands.

Source

Source module: treasury_fiscal
Data source: back_fillable

Fetched directly from app/sources/treasury_fiscal.py; see source code for the upstream API call and any provider-specific handling.

How it’s computed

Latest fd_interest_expense_fytd_bn from macro_series: sum of every interest_expense row’s fytd_expense_amt for the record_date (no grand-total row exists; the negative amortized-premium/GAS lines net down) / 1e9. See app/sources/treasury_fiscal.py:parse_interest_expense.

Where it surfaces

Health-score / alignment role

Data carrier — no implication, no health-score contribution.

Persisted for downstream consumers (sparklines, base-rate matcher, calibration substrate) but does not classify into BULLISH / NEUTRAL / BEARISH and does not contribute to the 0-100 health score.

Release cadence

US Treasury interest expense on the public debt, monthly.

See also