〔Day Digest〕PBOC Splits the Curve: 50B Long-End Bond Buying vs 641.5B Short-End Drain as 50Y Reopens at 2.52% — Hidden Debt Tops 2.7T, Second-Hand Housing +10.6%

0. The Arc

The day delivered a split-curve liquidity signal from the PBOC, a long-end supply test from the Ministry of Finance, and a synchronized push on real estate and hidden debt ^{[1][2][3][4][5]}. Mechanism: bond-buying operations are adding duration to the system while short-end reverse repos are being drained ^[2][3]. Real estate momentum from the first 8 months — second-hand transaction area +10.6% year-over-year — is the variable the 'Golden September Silver October' easing is built around ^[4][6].

1. PBOC Liquidity: A Curve Split

• **[NEW] August OMO ledger (PBOC):** open-market government bond trading net injected 50 billion yuan, while 7-day and overnight reverse repos net drained 641.5 billion yuan; MLF net drained 100 billion yuan, PSL net drained 52.1 billion yuan, other structural tools net injected 65 billion yuan, and central treasury cash management net injected 70 billion yuan ^[2][3]. Net read: duration-accommodative, price-restrictive.
• **[NEW] Cross-source check:** 36Kr ^[2] and Yicai ^[3] report the same figures, so the headline ledger is double-confirmed; the original PBOC release text was not included in the packet, so the breakdown rests on the two wire copies ^[2][3].

2. Long-End Supply Test

• **[NEW] 50-year ultra-long special government bond reissuance (MoF, via Yicai):** scheduled for September 9, bidding window 10:35-11:35 AM Beijing time; competitive bidding face value 35 billion yuan, no Class-A member add-on bidding, same-coupon 2.52%, first accrual May 7 2026, semi-annual interest on May 7 and November 7, principal due May 7 2076 ^[1]. Same-coupon reopening keeps carry flat; the test is demand.

3. Real Estate and the Fiscal Front

• **[NEW] Second-hand housing (Jan-Aug, National):** online-signing transaction area 549.23 million square meters, +10.6% year-over-year ^[4]. Eight-month baseline that the policy push is leaning against.
• **[NEW] 'Golden September Silver October' setup (multi-city):** Beijing and Shanghai moved first; Chengdu, Xi'an and others followed, easing purchase restrictions, down-payment ratios, and housing provident fund loan quotas, with additional subsidies including provident fund loan interest subsidies and trade-in subsidies; per Li Yujia, Chief Researcher at the Guangdong Provincial Housing Policy Research Center, the policy transmission lag to transactions is typically 1-2 months ^[6]. Tier-1 to tier-2 cascade is the signal.
• **[NEW] NHSA DRG/DIP 3.0 grouping (National Healthcare Security Administration, via Gelonghui):** new grouping plan and technical specification; a special-case review mechanism compensates hospitals that use new drugs, devices, or technologies in treating complex or critical cases, reviewed quarterly or monthly, with the stated aim of protecting medical institutions' motivation to treat such cases ^[7].
• **[ESCALATED] Hidden debt resolution (Gelonghui):** 2026 first-8-month issuance of special new special-purpose bonds and special refinancing bonds exceeded 2.7 trillion yuan, with the share of local government bond issuance breaking 40% in February and June; cumulative deployment 2024-2026YTD now exceeds 6 trillion yuan, ahead of the 2024 schedule ^[5]. Province-level progress is uneven: Jiangsu, Yunnan and Tianjin are in the late stage ^[5].

4. Trade, FX, and Opening Up

• **[NEW] Alashankou railway port (CCTV via Yicai):** China-Europe (Asia) freight trains passing the port in 2026 exceeded 6,000 trips on September 2, with minimum clearance time compressed to under 4 hours via joint rail-customs-border inspection coordination ^[8].
• **[NEW] 'Tianshan' branded trains (Xinjiang, CCTV via 10jqka):** 673 trips in the first 8 months, driving trade value of 11.709 billion yuan, +9.66% year-over-year; daily average above 2 trips, peaking at 3 ^[9]. Urumqi international land port now operates 6 mature Asia-Europe routes ^[9].
• **[NEW] Beijing '15th Five-Year' open-economy plan (Beijing Commerce Bureau, via 10jqka):** national treatment for foreign enterprises in factor access, qualification licensing, standards-setting, and government procurement; full-process services from negotiation through operation; encouragement of domestic reinvestment by foreign firms; support for multinational regional headquarters, investment companies, and R&D centers in Beijing ^[10].
• **[NEW] Onshore CNY close:** CNY/USD at 6.7219 at 16:30 Beijing time, down 1 basis point from the prior session ^[11].
• **[ESCALATED] G20 Finance Ministers (Liao Min, Vice Minister of Finance, China, via Cailian Press):** at the second 2026 G20 Finance Ministers and Central Bank Governors meeting in Asheville, North Carolina (Aug 31-Sept 1), called for 'true multilateralism,' 'win-win cooperation,' and bridging the 'digital-intelligence divide'; pushed for free trade, balanced treatment of global imbalances, and root-cause resolution of developing-country debt problems ^[12].
• **[NEW] SAMR leadership (Caixin):** Liu Guiping, age 60, appointed as Director of the State Administration for Market Regulation ^[13].
• **[ONGOING] Restricted stock personal income tax (joint release by MoF, SAT, and CSRC, Aug 28; commentary surfaced in packet on Sept 2, via Yicai):** the rules expand the taxable base to post-unlock bonus shares and converted shares, with a 'new-old cutoff' on cost verification; for new share registrations where the issuer fails to report the original cost basis, the prior 15%-of-transfer-revenue deemed-cost option is removed, with the change framed as 'standardization, not new taxation' ^[14].

5. What Would Falsify It

• The PBOC curve split is fragile: a single 50 billion yuan long-end injection cannot offset a 641.5 billion yuan short-end drain without durable demand for the 2.52% 50Y reopening on September 9 ^[1][2][3]. Test: the September 9 auction tail and the bidding cover ratio.
• Real estate momentum is policy-built, not organic: the +10.6% second-hand growth front-loads Jan-Aug 2026 transactions, but the policy lag means the 'Golden September Silver October' rebound is conditional on the easing in Beijing, Shanghai, Chengdu and Xi'an being transmitted to first-hand new-build inventory ^[4][6]. Test: September first-hand new-build transaction area.
• Hidden debt acceleration is geography-bound: Jiangsu, Yunnan and Tianjin are in the late stage, but the source does not enumerate laggards; provincial divergence will decide whether the 6 trillion yuan cumulative pace holds through year-end ^[5]. Test: end-Q3 special bond issuance in slower provinces.
• Source quality control: items ^[15], ^[16], ^[17], ^[18], ^[19], ^[20] and ^[21] are headline-only aggregations with no extractable data and have been excluded from numeric claims; ^[22] agriculture yield-elevation meeting, ^[23] local audit on government procurement, and ^[24] August Caixin new-economy index at 35 are packet items but not load-bearing for today's macro arc; ^[25] is a third-party morning brief (Wall Street CN) carried as publication context, not a primary data source.