At the opening bell on September 16th, the Shanghai Composite Index edged down 0.07% to 3,861.75 points, the Shenzhen Component Index slipped 0.08% to 13,276.85 points, and the ChiNext Index dipped 0.03% to 3,246.89 points. In a contrasting move, the STAR 50 Index opened higher, gaining 0.41% to reach 1,558.38 points. By 9:32 AM, market breadth showed 1,149 stocks advancing against 4,102 declining, with 313 remaining flat across the Shanghai and Shenzhen exchanges.
Leading the gains were sectors including rubber, oilfield services, communication equipment, precious metals, optical communications concepts, and PVDF concepts, while wind power equipment and tire-related stocks showed slight strength. On the downside, travel and scenic spots, agricultural product processing, commercial vehicles, batteries, engineering machinery, glass and fiberglass, agricultural reclamation concepts, cotton concepts, and duty-free shop concepts experienced notable declines.
Intraday Trading Snapshot
Following the initial bell, the three major indices weakened slightly. By 9:32 AM, the Shanghai Composite had fallen 0.19% to 3,857.06 points, the Shenzhen Component was down 0.44% to 13,229.06 points, and the ChiNext Index declined 0.48% to 3,232.21 points. The STAR 50 Index, however, remained the sole benchmark in positive territory, rising 0.17% to 1,554.66 points. Sector-wise, rubber, oilfield services, communication equipment, precious metals, and optical communications concepts continued to lead gains, with rising oil prices providing support to oil and gas-related directions. Wind power equipment and tire concepts showed modest strength before pulling back from intraday highs, while shipping and ports initially rose but then retreated to consolidate. Glass and fiberglass, batteries, travel and scenic spots, agricultural product processing, and commercial vehicles ranked among the top losers. At 9:32 AM, eight stocks hit the daily limit up while eight hit the limit down, with advancing stocks accounting for roughly 20% of the market, indicating a broad decline in individual shares.
Overnight Market Developments
In overseas markets on September 15th, all three major U.S. indices closed lower, with the Dow Jones Industrial Average falling 0.63% and the Nasdaq Composite declining 0.78%. The U.S. 10-year Treasury yield settled at 5.006%, marking the first close above the 5% threshold since July 2007. WTI crude oil futures for October delivery surged 4.38% to $105.83 per barrel. According to CME interest rate futures, there is now a greater than 90% probability that the Federal Reserve will implement a 25-basis-point rate hike in September.
On the domestic policy front, the Ministry of Industry and Information Technology along with the National Development and Reform Commission jointly released the "15th Five-Year Plan for the Development of the Electronic Information Manufacturing Industry," setting a target for revenue of enterprises above designated size to exceed 30 trillion yuan by 2030, while also aiming to achieve breakthroughs in high-bandwidth flash memory, high-bandwidth memory, and other new storage products. National Bureau of Statistics data revealed that industrial output above designated size grew 5.2% year-on-year in August. In industry news, Japanese firms JSR, Tokyo Ohka Kogyo, and Shin-Etsu Chemical announced they will raise photoresist prices for global customers by an overall 15% starting October 1, 2026, with HBM-specific immersion ArF seeing increases of up to 24%. Additionally, data from SCI indicated that domestic 7628 electronic fabric ex-factory prices have risen 10%–20% month-over-month.
Market Outlook and Analysis
Today's slight low opening across the three major indices, with the Shanghai Composite down 0.07% and the ChiNext down 0.03% while the STAR 50 opened 0.41% higher, was followed by modest intraday weakness. Overnight external pressures served as the primary dampener: ahead of the Federal Reserve's September policy meeting results, the U.S. 10-year Treasury yield climbed above 5%, and U.S. stocks closed lower, weakening overseas risk appetite and weighing on the A-share market's opening. On the trading front, the surge in oil prices stimulated relative activity in oil and gas sectors, with oilfield services leading gains, and wind power equipment maintaining the strong momentum seen the previous session. Conversely, glass and fiberglass, which led gains in the prior session, pulled back and ranked among the top decliners today, while planting and commercial vehicles continued their downward adjustment from the previous session, underscoring pronounced structural divergence in the market. External disruptions are likely to have a phased impact on A-shares; however, ahead of key events such as the Federal Reserve decision and geopolitical developments, the short-term market may remain rangebound, with directional moves awaiting confirmation from trading volume and risk appetite.