On July 28, Hong Kong-listed brain-computer concept stocks rose, with Nanjing Panda Electronics up nearly 9%, Naodong Jiguang-B up over 4%, and MicroPort NeuroTech up over 2%. Separately, US startup Science Corp. received EU approval to sell its PRIMA retinal chip, a semi-invasive brain-computer interface that restores partial vision in geographic atrophy patients by using a subretinal photovoltaic implant activated by near-infrared light from special glasses. This marks the first large-scale commercial launch of such a device by a US brain-computer interface company.
The STAR 50 Index, which tracks the top 50 companies on Shanghai's STAR Market, saw its decline widen to 3% during trading on Tuesday. Among its constituent stocks, Yuanjie Technology tumbled over 10%, while Shengyi Electronics and Biwin Storage each dropped more than 7%. The sell-off accelerated as the session progressed, with the technology-focused index coming under heavy selling pressure.
On July 28, China's major A-share indices fell sharply. The Shanghai Composite Index declined 1%, the Shenzhen Component Index dropped over 3%, and the ChiNext Index lost 4.7%. The losses deepened during the session, with the Shanghai index's decline expanding to 1% and the other two indices suffering steeper falls. The broad-based sell-off reflected market-wide weakness.
Chinese stock indices ended lower, with the Shenzhen Component Index dropping 3%, the Shanghai Composite Index falling 1.06%, and the ChiNext Index declining 4.7%. The broad-based decline reflected market weakness across major A-share benchmarks.
China's Shanghai Composite Index fell 1%, the Shenzhen Component Index dropped 2.89%, and the ChiNext Index declined 4.58% as the computing hardware industry chain broadly retreated. The broad-based sell-off weighed on the market.
ChangXin Memory Technologies, China’s largest DRAM maker, soared 465.82% from its IPO price on its Shanghai STAR Market debut, boosting its market capitalisation to RMB 3.28 trillion and overtaking ICBC as the largest A-share stock. Turnover exceeded RMB 140 billion, making it the first A-share stock to break RMB 100 billion in single-day trading. The same day, U. S. memory chip stocks fell sharply: SanDisk dropped about 11%, while SK Hynix ADR sank 7.5% to close below its IPO price for the first time. ChangXin’s IPO raised approximately RMB 57.9 billion ($8.6 billion), a record for Asia this year.
Controllable nuclear fusion concept stocks in China's A-share market experienced a sharp rally, with Rongfa Nuclear Power surging to the daily limit-up. The stock's strong performance triggered a wave of buying in related shares, including Changfu Shares, Zhongzhou Special Materials, Hahan Huatong, Lanshi Heavy Equipment, and CNNC Technology, all of which followed the upward move. The sudden surge highlights investor enthusiasm for the emerging nuclear fusion technology sector.
Consumer stocks, particularly in the dairy and snack sectors, rose during the session. Yiming Food Co. led the gains, surging to the daily limit up. Other stocks including Wanchen Group, Pinwo Food, Huanlejia, Qiaqia Food, and Panda Dairy also advanced. The broad-based buying pushed the consumer sector higher.
On July 28, the banking sector rallied, with China Construction Bank rising over 3% and Bank of Shanghai and Agricultural Bank of China each gaining more than 2%. Several large state-owned banks, including Bank of China, Postal Savings Bank of China, and Industrial and Commercial Bank of China, led the advance. The gains were broad-based, with multiple banks posting notable increases.
China's banking sector staged a counter-trend rally during trading, with China Construction Bank (CCB) shares rising more than 2% to a record high. The bank's combined A- and H-share market capitalisation exceeded RMB 2.1 trillion. Other lenders including Bank of Shanghai, Agricultural Bank of China, Postal Savings Bank of China, and Bank of Nanjing also advanced.
Robot concept stocks performed actively in trading. Shangwei New Materials rose over 10%, while Mingxin Xuteng had previously hit the daily limit for two consecutive sessions. Buke Co. , Fenglong Co. , Beizi Technology, and Aishida each gained over 5%.
Zhicheng Technology (Shanghai Zhicheng Purification System Technology) hit its third consecutive daily limit on July 27, closing at 27.37 RMB, bringing its market capitalization to 10.48 billion RMB. The stock surged 33.12% over the three sessions. According to the dragon-tiger list, net buying from top trading seats totaled 91.45 million RMB, including 18.07 million from Shanghai-Hong Kong Stock Connect and 73.39 million from brokerage seats. The company forecast a first-half net loss of 260 million to 380 million RMB, a sharp decline from the prior year.
On July 27, 2026, the Beijing Stock Exchange reported a total margin trading and securities lending balance of 84.02 billion RMB, an increase of 5017.75 million RMB from the previous trading day. The margin buying balance stood at 84.02 billion RMB, up 5019.49 million RMB, while the securities lending balance was 7.37 million RMB, down 1.74 million RMB. Daily margin buying amounted to 3.71 billion RMB, with no securities lending transactions and an outstanding securities lending volume of 1.40 million shares.
Hong Kong-listed auto stocks rallied, led by New Gonow RV which surged over 14%. Li Auto rose more than 3.5%, while XPeng, Geely Auto, Chery, BYD, and Seres each gained over 2%.
Dongbai Group hit its daily limit up, leading a rally in retail stocks. Zhongbai Group, Zhongyang Mall, Baida Group, Huijia Times, and Small Commodity City also rose. The retail sector advanced against the prevailing market trend, reflecting investor rotation into the sector amid broader market weakness. The gains came as the broader market experienced downward pressure, making the sector's outperformance notable. This move highlights a shift in investor sentiment towards consumer stocks, with the retail sector outperforming the broader index.
Shares of Changxin Technology opened more than 7% lower in early trading but later reversed course and turned positive. The stock's recovery from the initial sharp decline erased the early losses, leaving it in positive territory. The intraday swing highlights volatility in the stock.
China's automobile manufacturing sector saw a sudden surge, with Shuguang Co. , Ltd. hitting the daily limit-up, BAIC BluePark rising more than 5%, and JAC Motors, Haima Automobile, Ankai Bus, and Yutong Bus among the leading gainers.
Changxin Technology, the world's fourth-largest DRAM manufacturer, surged over 460% on its Shanghai Stock Exchange debut on July 27, reaching a market capitalization of RMB 3.28 trillion. Anhui province, through entities including Hefei Industrial Investment Holding Group, holds about 40% of the company, representing a paper gain of approximately RMB 1.3 trillion. Additionally, funds affiliated with DeepSeek founder Liang Wenfeng recorded a combined paper gain of about RMB 820 million.
AI application stocks rallied against the broader market trend. Nantian Information hit its daily trading limit, Kelan Software rose over 15%, and other stocks including Gaoweida, Geer Software, Maidy Technology, and Sitqi also followed with gains. The sector's strength stood out as the overall market faced headwinds. Nantian Information's limit-up move and Kelan Software's double-digit percentage gain were the highlights.
South Korea's KOSPI index resumed trading after the exchange lifted the circuit breaker that had temporarily halted the market. The reopening followed the suspension triggered by the mechanism. No further details or specific figures were provided.
China's four major A-share indices opened lower on July 28, with the Shanghai Composite Index falling 0.91%, the Shenzhen Component Index down 2.25%, the ChiNext Index dropping 3.12%, and the STAR Market Composite Index declining 2.3%. More than 4,400 stocks fell as computing hardware chains slumped, while lithography machine themes rallied. Changxin Technology opened 7.71% lower at RMB45.22, giving it a market cap of RMB3.02 trillion. Foxconn Industrial Internet opened more than 4% lower, and the company plans to buy back shares worth between RMB10 billion and RMB20 billion.
Brain-computer interface concept stocks recovered from a weak opening, with Innovation Medical and Saili Medical hitting the daily limit-up for two consecutive days. Feiwo Tai surged over 10%, while Aipeng Medical and Nanjing Panda also rose. The sector saw broad gains as investors rotated into the theme.
The tourism sector rallied in trading, led by Huatian Hotel which hit the daily limit up for two consecutive sessions. Other stocks in the sector, including Qujiang Cultural Tourism, Xi'an Catering, Three Gorges Tourism, Junting Hotel, and Yunnan Tourism, also rose.
Laopu Gold (06181. HK) opened down over 17% to HK$328 on Monday after issuing a positive profit alert. First-half revenue is expected at RMB 22.7 billion to RMB 23.35 billion, up 60%-65% year-on-year, and net profit at RMB 4.31 billion to RMB 4.36 billion, up 83%-85% year-on-year. Based on preliminary first-quarter data, second-quarter revenue is estimated at RMB 2.3 billion to RMB 3.95 billion and net profit at RMB 510 million to RMB 760 million, a sharp sequential decline.
Pharmaceutical stocks traded actively, with Hainan Haiyao hitting the daily price limit for two consecutive sessions. Longsheng Rongfa surged more than 10%. Other notable gainers included Guangshengtang, Ha Sanlian, Yatai Group, and Lianhuan Pharmaceutical, which led the sector's advance.
The lithography machine concept sector opened higher on July 28, with Zhangjiang High-Tech, Wavelength Photoelectric, Yongxin Optics, and Haili Shares all hitting the daily limit-up. Maolai Optics and Lanying Equipment each rose more than 10%.
Chinese A-share markets opened lower on July 28, with all major indices falling. The Shanghai Composite Index opened at 3823.13 points, down 0.91%. The Shenzhen Component Index dropped 2.25% to 13830.35 points, while the ChiNext Index fell 3.12% to 3478.86 points. The SME Board Index declined 2.12% to 8608.81 points.
Changxin Technology opened 7.71% lower at RMB 45.22 today, giving it a market capitalisation of RMB 3.02 trillion. The stock's decline in early trading represents a drop from its previous closing price.
Changxin Technology shares opened 7.71% lower at RMB 45.22 on July 28. The opening price of 45.22 yuan per share represented a decline of 7.71%. The stock began trading at that level at the start of the session.
China's A-share three major indices opened lower on July 28. The Shanghai Composite Index fell 0.91%, the Shenzhen Component Index dropped 2.25%, and the ChiNext Index declined 3.12%. Sectors such as newly-listed stocks, MLCC concept, memory chips, and CPO concept led the declines, while banks, liquor, and real estate posted modest gains.