The 2025 US Treasury Market: A Retrospective

The core event of the 2025 US Treasury market was that ultra-long bonds (20/30/40 year) flipped from “global safe-haven” to “global storm sea” — the driving force was not any single black-swan event, but rather the $111 trillion foreign exchange derivatives market (swaps + forwards account for two-thirds, with 90% having the dollar on the other side) which “dually locked” European, American, and Japanese government bonds together through FX swaps, overlaid with hedge funds’ 100x-leveraged ultra-long bond arbitrage, where any one country’s deleveraging triggers simultaneous blow-ups in multiple countries’ government bonds. The framework uses the three paradigm shifts revealed in the BIS paper dated June 30, 2025 as its structural backbone, characterizing the three coincident blow-ups in the first half of 2025 (April 7 / May 22 / June 30) as three empirical instances of a “fire across chained ships.”

The Framework As It Stands

This section is organized from the compiled research draft: the original framework’s structure, terminology, and key formulations are preserved, including editorial bridges and external fact annotations; diagrams are drawn by the compiler following the original framework’s structure.

I. Three Hidden Lines + Cross-Border Coupling Flow

Main judgment: government bonds — especially European, American, and Japanese ultra-long bonds (20/30/40 year) — have flipped from “global safe-haven” to “global storm sea”; what drives this flip is not any single black-swan event but three major structural paradigm shifts in the post-2008 financial system (BIS paper, June 30, 2025), which have locked global financial markets together in iron chains via FX swaps, so that any one country’s Treasury problem triggers simultaneous blow-ups in other countries.

Hidden Line A — collateral logic: ultra-long bonds (20/30/40 year) have become the core collateral for hedge funds’ 100x-leveraged arbitrage — basis trades / swap-spread trades / cross-currency basis swaps. Tradable US Treasuries stand at $28.7 t r i ll i o n; am ere$ 2 trillion in deleveraging sell pressure is enough to overwhelm the entire market — the collateral flow mechanism is more fragile than collateral quality itself.

Hidden Line B — profits privatized × risks socialized: PE / hedge funds / private credit funds pocket the windfall profits of money creation, but when ultra-long bonds blow up in tandem, because the $111 trillion FX swap market locks the global banking system in iron chains, the Fed is forced to act as global lender of last resort (not just for the US). “Replace Powell” = the political signal of tearing away this implicit global dollar guarantee — the Bank of England has already ordered its domestic banks to prepare for dollar-position risk in 2025.

Hidden Line C — three-flow joint observation judgment: any fragility-point judgment requires at least two of funding flow F / collateral flow C / risk flow R to show anomalies. In this topic, “SOFR angina + GC repo spike + Treasury fails-to-deliver rising + primary dealer inventory at historical highs” occurring simultaneously = Hidden Line C triggered.

Cross-border coupling flow X (new in 2025): the $111 trillion FX derivatives market “dually locks” European / US / Japanese / UK government bonds through bilateral balance-sheet counterpart positions — one country’s ultra-long bond deleveraging → counterparties must simultaneously deleverage → all ultra-long bonds globally crash together. The topic judgment rule upgrades to “at least two-flow anomaly + X-flow cross-border synchronized signal.” [editor-bridge · Mehrling + Pozsar]

Final landing point: Pozsar’s 2010 shadow-banking map can no longer describe the 2025 system — the main battlefield has moved from asset securitization to FX risk hedging; the main asset has shifted from subprime packaging to cross-currency government bond portfolios; the main mechanism has shifted from haircut-and-substitute collateral to FX-swap dual lock. This is Shadow Banking 3.0 (1.0 = 2008 subprime / 2.0 = 2019 CLO / 3.0 = 2025 bond portfolio + FX swaps). [source-transcript + editor-bridge]

II. Ten Propositions

1. The April 4/7/9 tariff-war “triple kill” of US equities + Treasuries + dollar — the root cause is not the tariffs themselves but the structural fragility of the Treasury market. At 11:00 AM on April 4 the Treasury market experienced its first problem; on April 7 the swap-spread hedge fund blowup; on April 9 Trump was forced to retreat. JPMorgan CEO Dimon defined it on April 11: “If the storm is not contained, the Fed will have to intervene. In the future it is not just US Treasuries that will blow up — multiple countries’ long-term government bonds will blow up in tandem.”

2. Three-tier cascade flash-crash mechanism from the tariff war: first tier = basis-trade hedge funds (~ $1 t r i ll i o n, 100 x l e v er a g e, c a pt u r in g 5 b p s p re a d s); seco n d t i er = s w a p - s p re a d a r bi t r a g e; t hi r d t i er = 30 - ye a rs w a p s p re a d s + cross - c u rre n cy ba s i ss w a p s . * * T o t a l se llp ress u re$ 2 trillion against $28.7 t r i ll i o n o f t r a d ab l e T re a s u r i es — t ha t$ 2 trillion alone is enough to overwhelm the entire market, with no buyer except the Fed.**

3. The “strange” phenomenon of 100bp rate cuts causing 30-year yields to rise 102bp: term premium entering a structurally rising trend, with European, American, and Japanese bonds collectively entering a “long winter.” From September 16, 2024 to July 21, 2025 the Fed cut a total of 100bp across three moves, yet 30-year Treasury yields rose 102bp. Over the same period: Japan 10-year 0.815→1.6%, Germany 10-year 2.0+→2.67%, US 10-year 3.73→4.339%, UK 10-year 3.9→4.6–4.7%. “60-year grand cycle = globalization entering winter = developed-country government bond markets entering winter.”

4. The BIS June 30, 2025 paper reveals three paradigm shifts (the key to understanding the 2025 Treasury market) [source-transcript + external-fact]:

Paradigm 1: asset expansion from private credit → government debt financing (ABS/MBS/CDO/CDS have been marginalized)
Paradigm 2: financial intermediation from traditional banks → cross-border non-bank institutions (2008 non-bank 167% / bank 164% → 2023 non-bank 224% / bank 177%; private credit funds $200 M \to$ 2.5 trillion, growth of tens of thousands of times)
Paradigm 3: cross-border investment from holding individual country bonds → cross-national government bond portfolios (50%+ of overseas US Treasury holders are cross-border non-bank institutions)

5. FX swaps are “the core and risk source of the new financial system” — the iron chains of the $111 t r i ll i o n d er i v a t i v es ma r k e t : * * a llFX s w a p co n t r a c t s ha v e t h e d o ll a ro n t h eo t h ers i d e (90$ 9.8 trillion of dollar rigid liabilities are hidden off-balance-sheet across the global financial system** (the “enormous hidden debt reservoir”).

6. FX swap dual lock: you hold my 30-year bonds, I hold your 30-year bonds — one country selling forces the counterparty to sell simultaneously. European pension funds use euros as collateral to borrow dollars to buy Treasuries → US counterparties hold equivalent European bonds; European deleveraging sells Treasuries → US side must simultaneously sell European bonds → both sides crash together. This is the fundamental mechanism behind “US Treasuries + Japanese bonds blowing up in tandem” in the first half of 2025 — the financial translation of “the whole world sharing the same cold.”

7. Three coincident blow-ups in the first half of 2025 — fire across chained ships:

April 7 Tariff War 1.0: Japan / US / UK 10-year yields all hit deep troughs simultaneously; dollar index fell anomalously
May 22 “Big Beautiful” Act: May 19 Ishiba says “Japan’s finances are worse than Greece” → May 20 Japan 20-year auction fails → May 21 US 20-year auction collapses → May 22 Japan / US / UK 30-year yields simultaneously rise (= fall sharply)
June 30 dollar angina: SOFR–EFFR spread reaches 12bp (>7bp = angina / >17bp = cardiac arrest); SRF that day deploys $11.175 billion (record high since the facility was established on July 28, 2021) → July 1 Treasury deep trough

8. Japanese bonds = value trap + trading trap, a dual trap:

Value trap (Morgan Stanley): holding US-dollar-based 30-year Japanese bonds apparent yield 7.03% / holding US-dollar-based 30-year US Treasuries 4.96% / holding EUR-based 30-year Japanese bonds 4.68% — 7.03% is a value trap, not an opportunity; with aging demographics, pension LDI demand disappears → supply surplus
Trading trap (Goldman Sachs): Japanese bonds use the same playbook as US Treasuries (100x-leveraged basis trades); the two blow-ups in April–May = high-leverage squeeze
Conclusion: ultra-long bonds are more fragile the longer the term; 10/20/30/40-year yields steepen in sequence, capital becomes thinner, liquidity worsens

9. TGA account refilling campaign = the biggest account-turbulence risk of the second half. July 4: “Big Beautiful” bill passes + debt ceiling raised by $5 t r i ll i o n \to J u l y 8 T re a s u ry ann o u n ces TG A re f i ll :$ 500 billion by end of July / $800 bi ll i o nb y S e pt e mb er; f u n d in g co m es f ro m reser v es$ 350 billion (red line of $3 t r i ll i o nm u s t n o t b e b ro k e n) + o v er ni g h t re v ersere p o$ 132.2 billion = $482.2 bi ll i o n (j u s t ba re l ye n o ug h) . * * A f t er t h e A ugu s t 1 t a r i ff 2.0 e x ec u t i o n, reser v es d ec l in e f a s t er \to e a sy t o t r i gg er SOFR j u m p in g t o 4.4-5.0 (an g ina / c a r d ia c a rres t) \to FX s w a p s a ff ec t e d \to g l o ba l ma r k e t c a sc a d e * * . T h e " s h or t - t er mb e f ore l o n g - t er m " i ss u an ces t r a t e g y = p u s hin g t h e l o n g - b o n d p ro b l e m t o l a t eseco n d ha l f (J u n e l o n g - b o n d i ss u an ce w a so n l y$ 50 billion, 2.5% of monthly issuance).

10. Shadow Banking 3.0 — Pozsar’s map is outdated. The key players have not changed (non-bank + market makers) but they have changed arenas: new raw material = cross-currency government bond portfolios; new processing = FX risk hedging (no longer asset securitization); new mass-produced product = arbitrage trades (swap spreads / currency basis / FX swaps / Treasury cash + futures); new derivative branch = stablecoins (digital shadow banking). Core collateral has moved up from subprime to sovereign debt, leverage has not fallen but risen, and cross-border coupling intensity has surged dramatically. [source-transcript + editor-bridge · Mehrling + Pozsar]

III. Key Data Cross-Section (as of Q2/Q3 2025)

Indicator	Value
Total US Treasury / tradable	$36.2 t r i ll i o n /$ 28.7 trillion
Tariff-war three-tier cascade total sell pressure	$2 trillion (7% of tradable)
FX derivatives market size	$111 trillion (swaps + forwards account for 2/3)
FX swaps dollar-side share	90%
BIS off-balance-sheet hidden dollar liabilities	~$9.8 trillion
SOFR–EFFR angina threshold	7bp; cardiac arrest 17bp
June 30 actual SOFR–EFFR	12bp
SRF June 30 single-day deployment	$11.175 billion (historical record)
30Y yield change during 100bp of cuts	rose 102bp
Japan 30-year yield gain April 2–May 22	92bp
TGA refill target (end of July / September)	$500 bi ll i o n /$ 800 billion
Reserves red line	$3 trillion
Private credit funds (pre-2008 → 2025)	$200 M \to$ 2.5 trillion
Cross-border non-bank share of overseas US Treasury holders	>50%

IV. 12 Observation Indicators (Three-Flow + X Judgment Method)

Judgment rule: any fragility point requires at least two of funding flow F / collateral flow C / risk flow R to show simultaneous anomalies + cross-border coupling flow X cross-border synchronized signal to be considered valid — single-flow single-country anomalies are treated as noise.

Leading Signals

#	Indicator	Data Source	Three-Flow + X	Anomaly Threshold
1	FX swap / cross-currency basis swap spread	BIS quarterly report (public) / Bloomberg (paid)	C+X	Major currency pair basis widens >−50bp
2	Ultra-long bond auction bid-to-cover	TreasuryDirect / BOJ / DMO (public)	C+X	<2.0
3	Cross-border non-bank institutions’ US Treasury holding structure	US TIC monthly report (public, 2-month lag)	X	Private holdings share declining + cross-border non-bank share rising
4	Private credit fund size / CLO spreads	Preqin (paid) / IMF GFSR (public)	R	Quarterly q/q >+10%; CLO spreads >mean +1.5σ

Coincident Signals

#	Indicator	Data Source	Three-Flow + X	Anomaly Threshold
5	SOFR–EFFR (angina thermometer)	FRED: SOFR–EFFR (public, daily)	F	0–7bp noise / 7–17bp angina / >17bp cardiac arrest
6	30Y/10Y US Treasury yield + ACM term premium	FRED DGS30/DGS10 + NY Fed (public)	F+R	30Y single-day jump >+15bp
7	European/US/Japanese 30Y synchronized anomaly correlation	Each country’s central bank + FRED (public, self-calculated)	X	Rolling 20-day ρ >0.7 (historical mean ~0.2–0.3)
8	Treasury fails-to-deliver	NY Fed primary dealer statistics (public, weekly)	F+C	>mean +2σ
9	Primary dealer Treasury inventory + SLR utilization	NY Fed PD Stats / G-SIB Pillar 3 (public)	C	Inventory passively inflating + SLR approaching limit

Intervention Signals

#	Indicator	Data Source	Three-Flow + X	Anomaly Threshold
10	Bank reserves ($3 trillion red line)	FRED WRESBAL (public, weekly)	F	Falls below $3 trillion
11	TGA balance change + long-bond issuance share	TreasuryDirect daily / FRED (public)	F+X	Single-week change >+$100 billion + long-bond share <5%
12	SRF single-day usage	NY Fed OMO (public, daily)	F+R	> $5 bi ll i o n (J u n e 30 a c t u a l :$ 11.175 billion)

Compiler’s Perspective

Coordinates: category = event retrospective · axis_h = Shu · axis_v = Why It Is So

[The nature of capital and money — asset abstraction, resources concentrating at the core, what money really is has a precise landing point in this retrospective: before 2025, three market orthodoxies were simultaneously falsified — “rate cuts push long-bond yields lower,” “US Treasuries are the global safe-haven,” and “rising Treasury yields mean a rising dollar.” Those who bought in using the mainstream framework stepped into two reverse-indicator traps simultaneously on April 7, 2025: “buy Treasuries as safe-haven” and “rising Treasuries = rising dollar.” These reversals were not accidental disturbances but structural inevitabilities of the BIS’s three paradigm shifts — using a pre-2010 analytical framework is essentially navigating with an already-replaced map.

**Proprietary increment — the asymmetric structure where 7% of sell pressure overwhelms $28.7 t r i ll i o n * * : t h ecore a sy mm e t ryo f t hi sre t ros p ec t i v e i s t ha tt r a d ab l e U ST re a s u r i es t o t a l$ 28.7 trillion, yet the three-tier deleveraging sell pressure during the tariff war measured only $2 t r i ll i o n (6.97$ 11.175 billion single-day record on June 30 is its quantified falsification. Within the same observation period, an observer whose four indicators simultaneously hit — “reserves declining toward the $3 trillion red line + SRF repeatedly deployed + ultra-long bond bid-to-cover <2.0 + European/US/Japanese 30Y rolling correlation >0.7” — has an early-warning window more than two weeks ahead of anyone simply watching US Treasury price action.

Connection to stablecoins: Proposition 10 of this retrospective is explicit: the new derivative branch of Shadow Banking 3.0 in 2025 is stablecoins — Stablecoins and Tokenization handles this branch’s monetary philosophy and China’s strategic positioning. Repo and Shadow Money is the theoretical baseline map of Shadow Banking 1.0 from 2008; this retrospective is the event grounding of the 1.0→3.0 evolution. The Hedge Fund Repo Crunch describes the 2019 mini-rehearsal, which shares the same Hidden Line C three-flow judgment method with the April 7, 2025 three-tier cascade flash-crash.

Sources

Compiled draft z-0136 · incorporated 2026-07.
References: BIS June 30, 2025 paper “Three Paradigm Shifts in Financial Intermediation” (bis.org/publ/work), Mehrling Money View framework and Pozsar shadow-banking taxonomy (both are editorial bridges, flagged as such in The Framework As It Stands section).

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