Auto-generated. This article is rebuilt from app/signals/config/signal_definitions.json by scripts/build_signals_kb.py. Edit the registry entry and re-run the script — do not edit this file directly.

Retired 2026-09-08. FRED discontinued WRMFSL in Feb 2021; the value on record is the final 2021-02-01 vintage. Operator retired 2026-09-08. The series no longer updates and is hidden from live surfaces; its history stays in the platform’s signal store for research.

Retail MMF 13-week change

What it is

Retail MMF 13-week change — registry key mmf_retail_13w_chg_bn.

RETIRED 2026-09-08 (history-only): parent series FRED WRMFSL discontinued Feb 2021. 13-week change in retail MMF assets - whether cash is still building on the sidelines or draining. long-end supply-stress carrier, Phase 3B 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: debt_holders
Data source: historical

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

How it’s computed

Latest macro_series mmf_retail_bn value minus the observation nearest 91 days earlier (within a 10-day tolerance); NULL when no prior observation falls near the target (gap -> NULL, never 0). Pure change_over_days in app/sources/debt_holders.py.

Where it surfaces

• API field: debt_holders.mmf_retail_13w_chg_bn on GET /api/v1/signals/latest
• Surface: daily_signals row (daily-cadence persistence)

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: weekly
• Lag days: 1

Recomputed each cycle from the full macro_series mmf_retail_bn history.