The Infarction Spread System is a three-tier liquidity crisis triage framework that uses the spread between SOFR and the Effective Federal Funds Rate (EFFR) — the “infarction spread” — as its core indicator, supplemented by primary dealer balance sheet utilization rate, to determine whether the US Treasury market is in one of three states: “cardiac murmur — angina pectoris — myocardial infarction.”

The Framework As It Stands

This section is compiled from research drafts: it preserves the original framework’s structure, terminology, and key formulations, including editorial bridges and supplementary factual annotations; diagrams are drawn by the compiler according to the original text’s structure.

Core Premise: The New Bottleneck Is Not Total Reserves, but Dealer Inventory

After 2024, analysis of US Treasury market liquidity upgraded the prior framework that tracked only total reserve levels. The core conclusion: the new financial bottleneck is not total reserves, but dealer (primary dealer) inventory. “The diameter of the pipe between two water tanks determines liquidity” — a narrow pipe means that even with ample reserves, money cannot flow through, causing a myocardial infarction.

Market makers = the central bank of the shadow banking system. The Fed is the central bank for commercial banks; market makers are the central bank for the entire shadow banking system. Their balance sheet utilization rate (BIS calculates a 40% warning threshold and 60% crisis line; as of 2024-10 it had reached 60.58%) determines whether global capital can circulate. Dealers lying down = global capital flow paralysis.

The Three-Tier Infarction Spread Triage System

Infarction spread definition: SOFR (Secured Overnight Financing Rate) − EFFR (Effective Federal Funds Rate)

Calibrated on five years of data from January 2020 to January 2025:

Spread RangeStatus LevelClinical Analogy
≤ 0 bpNormalSteady heartbeat
> 0 bpCardiac murmurMonitor dealer inventory
> 7 bpAngina pectorisAll hedge fund positions must be sold (lasting 3–5 days)
> 17 bpMyocardial infarctionSystemic liquidity crisis

Only two infarctions occurred in five years: the 9/30 Infarction (overdraft of 21.7 billion across four circuit breakers in March 2020) and the Christmas Infarction (five consecutive days — “one infarction, four angina episodes”). These thresholds do not need to be recalibrated after rate cuts and retain permanent usability.

Three Mechanisms of Dealer Stress

A Federal Reserve paper dated September 24, 2024, “Assessment of Market Making Capacity in Dealer Treasury and Agency MBS Markets,” noted that the external SLR (Supplementary Leverage Ratio) of the six major primary dealers remains above 5%, and that the true constraint is the internal Bank Holding Company (BHC) risk-control Value at Risk (VaR) — rising volatility → VaR surges → risk control forces position reduction → liquidity dries up → infarction.

Three sources of pressure:

  1. Massive Treasury issuance: tradeable Treasuries at 29.3 trillion, up +29.3% year-on-year; daily trading volume $907.9 billion, up +19.4%
  2. External SLR regulatory constraint (secondary)
  3. Internal VaR forced position reduction (primary, with positive feedback from volatility)

The “Fair-Weather Umbrella” Effect of PFOF High-Frequency Traders

High-frequency traders (PDF) erode primary dealer market-making share through PFOF (Payment for Order Flow). PDF hold Treasury positions for only 3–5 seconds, providing quotes only when liquidity is not needed, and disappear immediately when markets deteriorate — the three order-depth troughs (2020-03 / 2023-03 / 2024-09-30) all confirm this pattern. The framework characterizes this as: market makers bear the public-goods responsibility while share is eroded by entities that profit without bearing that responsibility.

  1. Infarction spread > 17 bp
  2. SRF (Standing Repo Facility) single-day usage ≥ $100 million (confirmed four times in 2024: 10/3, 11/6, 12/10, 12/23)
  3. Primary dealer Treasury net inventory continuously rising → volatility increases → VaR forced reduction → liquidity crisis

Hegel’s Five Logic Layers and Infarction Judgment

The framework requires that any judgment about infarction must be capable of coherent penetration across five layers:

  • Sphere of Being: excessive Treasury issuance (quantity) + declining dollar credibility (quality)
  • Sphere of Essence: dealer bottleneck (identity → difference → ground)
  • Sphere of Appearance: SRF deployment, infarction spread spike, market linkage
  • Sphere of Actuality: expectation shift → policy adjustment → necessity
  • Sphere of the Concept: The Dollar Circulation System framework (subjective / objective / truth = continuous falsification)

Layer mismatch is “talking past each other at different altitudes” — Hegel’s Doctrine of Essence: Logical Layering provides the philosophical tool for this penetration.

Complete 2024 Infarction Timeline (Methodological Validation Sequence)

7/1 angina, 9/30 infarction (The Hedge Fund Repo Crunch triggered, overdraft $17.5 billion), 10/3 SRF deployment, 10/30 angina, 11/6 SRF, 12/10 SRF, 12/16 angina, 12/23 SRF, 12/26 Christmas infarction.

Gold / silver / Nasdaq / Shanghai Composite all correspond precisely to infarction timestamps — this is an empirical sequence for “infarction → global market linkage.”

Compiler’s Perspective

Coordinates: Observation Indicators & Signals · Qi · What It Is

The specific error of the old framework: An analyst who held the judgment “total reserves > $3 trillion = safe” would have asserted “liquidity is ample” before the September 30, 2024 infarction — because reserves were still above the red line at that time. The layer they missed: primary dealer balance sheet utilization at 60.58% (disclosed in the Fed’s October 24, 2024 paper) had already reached the BIS crisis threshold, and this figure can coexist simultaneously with high total reserves. The particular value of the Infarction Spread System lies in this: it does not need to wait for reserves to fall below the red line before sounding the alarm; the angina signal of spread > 7 bp can already activate while reserves remain ample.

Framework-specific assertion: The dual 7/17 bp thresholds are parameters calibrated from five years of empirical data (2020.1–2025.1), and the framework explicitly declares that “the thresholds need not be recalibrated after rate cuts and remain permanently usable” — meaning it is not a scenario-specific rule but a structural signal embedded within the SOFR-EFFR rate architecture. Analysts who hold SRF ≥ $100 million as the warning line can find the September 2019 repo crunch as a reference frame from the historical cases in The Repo-Market Dollar Shortage, but the 2024 mechanism has one key difference: the SRF was triggered four times in 2024 without the Fed immediately expanding its balance sheet — in contrast to the 2019 pattern of being forced to expand directly — indicating that the dealer inventory problem is more deeply embedded than the 2019 repo crunch.

Connection to Crystal-Ball Counting: Putting Energy into Clarity (Zen Trading Method): Crystal-ball counting does not pursue predicting every fluctuation; it puts energy into “clarity.” The Infarction Spread System provides exactly this minimum operable form of “clarity”: the three-tier thresholds compress vague “markets seem tight” into a binary judgment that can be directly checked (whether the spread exceeds 7 bp / 17 bp), and combined with the multi-dimensional panel of The Financial Anomaly Indicator System, this forms an executable observation platform rather than a system of inferential logic.

See Also

Sources

  • Compiled draft z-0223 · collected 2026-07
  • Federal Reserve Board, September 24, 2024 paper, “Assessment of Market Making Capacity in Dealer Treasury and Agency MBS Markets” (publicly released); Federal Reserve Board, October 24, 2024 paper (disclosing primary dealer balance sheet utilization of 60.58%, publicly released)