Fed Holdings — Jarvis

TSY HOLDINGS (ECONOMIC)

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Par + IC adjustment

TSY HOLDINGS (PAR)

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Face value only

TIPS INFLATION COMP

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Accrued since issuance

MoM CHANGE

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ALL SOMA (INCL MBS)

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Total SOMA portfolio

FOMC QT CAP

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Monthly max runoff

Reconciliation

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Fed Share of Marketable Debt

Available after Treasury debt data ingested (Fiscal Data API).

Holdings by Type — Latest Week

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HOLDINGS HISTORY — ECONOMIC VALUE (PAR + IC)

MATURITY PROFILE — HOLDINGS BY MATURITY DATE

CUSIP Detail — Latest

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CUSIP	Type	Maturity	Coupon	Par Value ($M)	IC Adj ($M)	% Outstanding	Chg Wk ($M)
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Data Sources & Methodology

NY Fed SOMA Holdings API

markets.newyorkfed.org/api/soma/summary.json — Weekly aggregate by class, full history 2003+

…/tsy/get/all/asof/{date}.json — 432 Treasury CUSIPs per as-of date

As-of dates: Wednesday weekly. Data published following day. parValue is a string in the API; coerced on ingest. inflationCompensation is empty string (not null) before 2007-03-14 — the IC era gate in schema treats these as zero, never fail.

Reconciliation — soma_cusip_par_vs_summary

CUSIP-level parValue SUM vs summary notesbonds + bills + tips + frn. Tolerance ±$500k (p99 of measured residuals). TIPS rows use parValue (pre-IC); IC delta tracked separately as tipsInflationCompensation. Pre-2007-03-14 skipped (IC era gate).

FOMC QT Caps

Hand-maintained in fed_runoff_caps table. Partial unique index on effective_to IS NULL enforces single active cap. Cap for MBS separate from Treasuries. Source citations stored per row.

Note on MoM Attribution

MoM uses prior Wednesday ~28 days earlier (not prior calendar month-end). changeFromPriorWeek carries up to 7-day attribution error at month boundaries; use soma_maturity_schedule.maturity_date for exact Fed-redemption timing.

Source: NY Fed SOMA API · DB: rates.db · Tables: soma_holdings, soma_summary, fed_runoff_caps, reconciliation_status · Plan: fed-holdings-treasury-debt-cards.md

Fed Holdings — Treasuries