〔Day Digest〕UK 30Y Nears 6% as Post-Truss Long-Duration Cut Fails, While Japan Oil Bill +58.7% Deepens Trade Drag and ¥2.886T 'Mrs. Watanabe' Shorts Pile In - BoJ-Fed Hike Week Squeezes DM Long End

0. Weekly Arc

The UK's post-Truss strategy of reducing long-dated gilt issuance to support the curve has stopped working: the 30-year is pressing toward 6%, the highest since 1998, even as issuance is throttled back ^[1]. Japan is absorbing a +58.7% y/y oil bill on just +3.6% volume, a fourth straight monthly trade deficit at ¥1.1T, and ¥2.886T ($18.58B) in 'Mrs. Watanabe' yen shorts — all landing in the same week the BoJ and Fed are both expected to hike ^[2][3][4][5]. Net: a global long-end supply story, a Japan terms-of-trade shock, and a tightening-week squeeze layered onto DM bonds, with four major central banks sitting in the same three-day window ^[6].

1. Policy Narrative

• **[NEW] Bank of England:** market repriced post-CPI to four BoE hikes by end-2027, down from prior bets ^[7]. UK July DCLG house prices slowed to +1.4% y/y from +2.0% prior, but the long end keeps widening ^[1][8].
• **[ESCALATED] Fed credibility risk:** Metzler Bank warns the Fed and the chair's credibility would be 'severely damaged' if the expected hike fails to materialize ^[9].
• **[NEW] BoJ / Fed same-week hikes:** the open question is whether a yen rally can break through the carry trade ^[4].
• **[ONGOING] ECB:** projects 2027 wage growth of 2.7% in Q1 and 2.8% in Q2, keeping the tightening case live even as growth softens ^[10].
• **[NEW] Bank of Canada:** monetary policy decision text released via BIS — opening statement by Governor Tiff Macklem and Senior Deputy Governor Carolyn Rogers, Ottawa, Sept 2 ^[11].
• **[NEW] Uzbekistan central bank:** held the key rate at 14.0% ^[12].

2. Key Data and Sovereigns

• **[NEW] UK 30Y near 6.0%** — the highest level since 1998 — defying the post-2022 long-issuance reduction strategy ^[1].
• **[NEW] UK July DCLG** +1.4% y/y vs +2.0% prior ^[8].
• **[NEW] UK CPI pressure:** 'summer holidays and disruption to global oil supplies by the Middle East conflict stoked price growth' ^[13].
• **[NEW] Japan August oil imports:** cost +58.7% y/y on volume +3.6% y/y; total imports +28%; trade deficit widened to ¥1.1T for a fourth consecutive month; Daiwa Institute's Koki Akimoto notes a ~2-month oil-to-arrival lag implies further cost rises from September ^[2][5].
• **[NEW] Japan August exports** +19.3% y/y (vs +23.2% in July) — US +24.9%, China +20.6%, EU +11% ^[5].
• **[NEW] Saudi Arabia:** issued SAR 1.6B sukuk for September financing ^[14].

3. FX and Cross-Currents

• **[NEW] 'Mrs. Watanabe' yen shorts:** SMBC Nikko strategist Rinto Maruyama estimates Japanese retail yen shorts at ¥2.886T ($18.58B) at end-August — more than half of the global ¥4.1T total — creating squeeze risk on any further yen rally ^[3].
• **[NEW] ING:** not yet convinced the dollar's decline is ending soon; EUR/USD trajectory in question ^[15].
• **[NEW] Indian rupee:** faces more pressure as a likely Fed hike compounds oil pain ^[16].
• **[NEW] EU-Canada 'quasi-member':** European Commission President Ursula von der Leyen proposed Canada as the EU's first quasi-member state, citing 'the same lens on the world' and joint plans for manufacturing, tech, energy, AI, defense and the Arctic with Prime Minister Mark Carney ^[17][18].
• **[NEW] Carney on US trade:** a Canada-US deal only when 'the time is right'; Ottawa opens talks with the EU next month on a security and economic alliance; Canada's countermeasures on US tariffs already in force, US 50% tariffs on 100+ Canadian goods effective from Sept 15 ^[19].
• **[NEW] Canada Investment Summit:** ~CAD 500B in new investment and financing commitments — banks ~CAD 325B, pension/insurer ~CAD 100B, the Maple Fund CAD 50B ^[20].

4. Structural Read and What Falsifies It

• **[ONGOING] Moody's:** DM sovereign yields moving collectively higher — a 'structural change has occurred' ^[21].
• **[ONGOING] Global bond market** being reshaped by the high-yield regime ^[22].
• **[NEW] Siebert Financial:** the US 10Y above 5% is 'not an isolated event' ^[9].
• **[NEW] BofA fund manager survey:** European bullish case softening; investors shifting from overweight to underweight ^[9].
• **[NEW] Mizuho:** energy import costs may keep Japan's trade deficit persistent ^[9].
• Falsifiable test: a BoJ pause or dovish surprise plus softer UK CPI follow-through would unwind the long-end squeeze, but an ECB wage print above 2.8% would lock in the four-hike BoE path and a steeper gilt curve ^[10][7].
• Source control: items ^[14], ^[12], ^[7] are single-line wires with no underlying methodology; treat as raw releases ^[14][12][7]. The contradiction is content: Moody's flags a structural DM-yield reset while the BoE, BoJ and Fed are all expected to tighten inside the same week ^[4][21][7].