Market Wrap: Divergence Defines the Final Trading Day Before Golden Week
TREE NEWS reports: Mainland Chinese equities closed narrowly mixed on the last session before the week-long National Day holiday, with the Shanghai Composite eking out a 0.31% gain while the Shenzhen Component slipped 0.11% and the ChiNext board fell 0.23%. The tech-heavy STAR 50 index was the day’s biggest loser, tumbling 2.51% to 1,530.01 as semiconductor and AI hardware names sold off sharply. Turnover across the two exchanges reached 1.45 trillion yuan, with more than 2,800 individual stocks closing lower.
Property Sector Stages Dramatic Intraday Reversal
The session’s most striking move came from real estate developers. The sector opened deep in the red, with Shenzhen Property A, China Vanke, and World Union falling limit-down and the broader property index losing more than 5% at one point. By mid-morning, bargain hunters flooded in, and the group reversed course. Shenzhen Property A, Lujiazui, and Zhongtian Service all surged to limit-up by the midday break.
The catalyst was a landmark policy unveiled a day earlier: the Ministry of Finance, the People’s Bank of China, and the financial regulator jointly announced a nationwide mortgage interest subsidy effective October 1. Under the one-year pilot, eligible residential mortgages will receive a 1-percentage-point interest subsidy — the first time the central government has directly subsidized commercial housing loans. Analysts estimate the program could support roughly 1.8 trillion yuan in annual lending, cutting household interest costs by about 18.2 billion yuan per year and lowering the effective mortgage rate from around 3.05% to 2.05%.
Biotech Emerges as the Day’s Only Cohesive Theme
Pharmaceutical and biotech stocks were the standout performers. Oncology vaccines led concept gains at 9.67%, with biologics up 4.18%, medical services up 3.86%, and CRO names up 3.79%. CanSino Biologics hit the 20% limit-up at 102.64 yuan, while Joinn Laboratories and other vaccine and CRO names also sealed limit-up. The rally was fueled by overseas catalysts: Roche outlined plans for an autonomous AI drug-discovery lab, and AstraZeneca announced a $2 billion strategic equity investment in Summit Therapeutics to advance combination cancer therapies.
Notably, the rotation reflected a “barbell switch” in capital flows. Electronics saw the largest single-sector net outflow of the morning session at roughly 8.65 billion yuan, while biopharma attracted about 6 billion yuan — a clear rotation from high-valuation tech into defensive and policy-supported healthcare.
Banks, Bonds, and Commodities
Banking stocks strengthened into the afternoon, with Bank of China touching a record high and ICBC, China Construction Bank, and several regional lenders hitting all-time peaks during the month. Government bond futures fell across the curve, with the 30-year contract down 0.58%. Commodity futures were broadly higher, led by chemicals and non-metallic building materials, while shipping and base metals lagged.
Key Takeaways for Investors
- Policy support is real but targeted: The mortgage subsidy is a meaningful demand-side stimulus, but its 1.8 trillion yuan scope covers only 5% of outstanding mortgage balances — a floor, not a cure.
- Sector rotation is intensifying: The move out of semiconductors and AI hardware into biotech, banks, and property signals risk-aversion ahead of the holiday and rising sensitivity to US Treasury yields.
- Post-holiday positioning: With September losses steep — the ChiNext down 27.8% and STAR 50 down 30.7% for the quarter — any positive holiday catalyst could trigger a sharp technical rebound in oversold quality names.
- Watch the rate differential: Falling effective mortgage rates converging toward rental yields near 2% could gradually improve housing affordability and stabilize transaction volumes in lower-tier cities.
