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Euro-area 30Y yield (France proxy)

What it is

Euro-area 30Y yield (France proxy) — registry key ea30y_yield.

Euro-area AAA 30-year par yield (ECB Data Portal YC curve) - the euro-area proxy for the long end. France has no free daily 30Y (BdF ODS empty, AFT anti-bot walled), so this AAA (German-weighted) curve stands in as the euro proxy. long-end supply-stress carrier, Phase 2 of improvements/long-end-stress.md; scoring deferred to a pre-registered study.

Data-pyramid tier

T1 — Signal. This metric sits at the signal 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: sovereign_yields
Data source: back_fillable

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

How it’s computed

Latest euro-area AAA 30Y par yield read back from the macro_series ea_30y series (ECB Data Portal YC, csvdata TIME_PERIOD/OBS_VALUE), rounded to 2dp. The euro/France proxy - not France-specific. data_only carrier. See app/sources/sovereign_yields.py.

Where it surfaces

• API field: sovereign_long_end.ea30y_yield on GET /api/v1/signals/latest
• Surface: daily_signals row (daily-cadence persistence)
• Surface: /signals/sparklines (UI sparklines)

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

• Publishes: daily
• Lag days: 1

ECB Data Portal YC AAA curve, business daily (euro-area).

See also

• /kb/api/get-signals-latest — API endpoint that serves this field.