A-shares showed a weak and volatile trend on Monday, with the communications and electronics sectors gaining strength. The green power segment experienced repeated active trading, highlighted by Jiawei Renewable Energy Co.,Ltd. surging to a 20% limit up within just one minute of market opening.
On March 18, A-shares opened slightly higher in the early session. The Shanghai Composite Index rose by 0.08%, the Shenzhen Component Index increased by 0.49%, the ChiNext Index advanced by 0.85%, and the STAR Composite Index climbed by 0.49%. However, the market subsequently turned volatile and weakened. At the time of writing, most of the major A-share indices were trading in negative territory.
Sector performance showed strength in communications, electronics, computer, and utilities during the morning session. Concepts such as memory chips, East Data West Computing, and smart grids were particularly active. In contrast, sectors including petroleum and petrochemicals, basic chemicals, and real estate declined.
The communications sector strengthened at the market open. Areas including optical modules, optical circuit switches, optical communications, and optical chips collectively rebounded. Among individual stocks, Century Hengtong surged over 10%, Raisecom Technology hit the daily limit up, while Tianfu Communication, Decent Technology, Accelink Technologies, and Eoptolink Technology also posted significant gains.
In related news, on the opening day of the global optical communications annual conference OFC 2026, HG Tech's core subsidiary Huagong Zhengyuan officially joined the XPO MSA as a founding member. It simultaneously launched the 12.8T XPO optical module globally, providing mature and scalable solutions for upgrading AI computing power networks.
Meanwhile, the memory chip index also saw a strong intraday rally. Tongyou Technology jumped by 20% to hit the limit up, China Electric Equipment Group also reached the limit up, while Netac Technology, Puya Semiconductor, BIWIN Storage, and Jiangbolong Technology all recorded substantial increases.
Recent reports indicated that internal forecasts from Samsung suggest memory chip demand will peak in the coming quarters, with supply shortages expected to persist until late 2028, when supply and demand are projected to balance. SK Hynix believes that current AI-driven demand will continue to outstrip supply, potentially leading to a supply-demand gap lasting until 2030.
The green power sector demonstrated repeated activity during the morning session. Utilities stocks strengthened, with green power concept shares showing notable volatility. Huadian Liaoneng Energy recorded its third consecutive limit-up涨停, while Shaoneng Shares and Jinkai New Energy also hit the daily limit. YueDong Power and Huayin Power followed with gains.
Jiawei Renewable Energy Co.,Ltd. surged to a 20% limit up just one minute after opening, with its share price reaching 6.31 yuan per share.
Yudean Group A-share hit the limit up during the call auction, with buy orders exceeding 700,000 lots at the time of writing.
Recently, Yudean Group stated on an investor relations platform that its Guangdong Energy Karamay photovoltaic project plans to construct a photovoltaic power station with a total installed capacity of 300 megawatts. The project will include a supporting energy storage system of 30 MW/60 MWh and an intelligent computing center with a computing power scale of 500 PFlops.
A recent research report from Kaiyuan Securities pointed out that the integration of computing and electricity is shaping a new industry ecosystem, potentially enhancing the environmental premium of green power. By 2026, as the impact of green certificate supply subsides and key energy consumers—including steel, cement, polysilicon, and newly built data centers at hub nodes—face formal assessments of their green power consumption ratios, the green certificate market is expected to gain further vitality. New models such as direct green power connections and computing-electricity synergy could create a second growth curve for operators.
