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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 money market fund assets

What it is

Retail money market fund assets — registry key mmf_retail_bn.

RETIRED 2026-09-08 (history-only): FRED discontinued WRMFSL in Feb 2021; frozen at the final 2021-02-01 vintage. Retail money market fund assets (FRED WRMFSL, H.6, weekly). The NARROWER free measure: it excludes the institutional/government-only share, so it runs well below the broad ~$8.36T total (mmf_total_q_bn). long-end supply-stress carrier, Phase 3B 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: 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 value of the macro_series mmf_retail_bn series (FRED WRMFSL, billions native, no scale), rounded to 1dp. Narrower than the broad total by construction. data_only carrier - no band classifier. See app/sources/debt_holders.py.

Where it surfaces

• API field: debt_holders.mmf_retail_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

FRED WRMFSL retail MMF, weekly (H.6).