STAR 50 surges 4%, chip semiconductor sector collectively erupts

The recent release of DeepSeek's V4 model has propelled a positive cycle for domestic large models and computing power, leading to a continued surge in chip and semiconductor stocks in A-shares and Hong Kong stocks, which in turn has driven A-shares' STAR 50 Index to rise by more than 4%.

Semiconductors Surge Across the Board

The semiconductor industry chain is another core driver of the STAR 50's leading gain today. DIOU Micro, Zhonghe Technology hit their upper limit, Dongxin Shares, Xinyuan Micro rose by more than 10%, and Moore Threads, Xinyuan Shares, Lepu Technology saw significant increases. SMIC's Hong Kong shares also increased by over 8% on the same day, benefiting the entire direction of domestic computing power chips.

CITIC Securities believes that under the demand for AI, the semiconductor silicon wafer industry is entering an upward cycle: the logic of volume increase has appeared in 2025, and the pricing logic is expected to be implemented in the second quarter of 2026, coupled with the acceleration of domestic replacement of 12-inch silicon wafers, the long-term growth of Chinese silicon wafer companies is certain.

In April, a total of 47 individual stocks in the STAR market hit historical highs, with the vast majority concentrated in the AI computing hardware field, including Bawell Storage, Yuanjie Technology, Shenke Communication, Changguang Huaxin, etc. Behind this data is the continuous allocation of institutional funds to the hardware manufacturing direction with high expectations, strong performance, and technological barriers.

PCB Concept Strengthens

Shennan Circuit continued to rise and set new historical highs, while Fangbang Shares, Shandong Fiberglass, Jingwang Electronics saw three stocks hitting the upper limit, with Zhongying Technology, Nan Ya New Materials, Kexiang Shares and other stocks following closely.

Driving this round of PCB market is the fundamental signal of synchronized resonance on both the supply and demand sides. On the one hand, high-grade PCB material suppliers such as Tai Guangdian, Tai Yao, and Lian Mao have recently announced price increases one after another: Tai Yao raised CCL prices from April 25, with some product series increasing by 20% to 40%; Tai Guangdian and Lian Mao also announced the start of a new round of price adjustments for high-grade application materials such as AI servers and switches from the second quarter, with an increase of about 10%. On the other hand, Hu Die Shares disclosed a 54.76%-65.25% increase in performance for the first quarter last week, providing a strong endorsement at the performance level for the industry.

Institutional analysis points out that different from the past cycle dominated by consumer electronics, this round of PCB industry prosperity comes more from the rapid increase in investment in computing infrastructure, with the proportion of high-end product demand continuing to rise, and the improvement in profitability has sustainability. As AI servers migrate from GPU architecture to ASIC acceleration, the value of ASIC server mainboard PCB per unit is significantly higher than that of the same generation GPU servers, and the trend of product structure towards high-end is still in its early stages.

CPO and Optical Fiber Concepts Active

The CPO concept was active again during the trading session. Benefiting from the substantial confirmation of rumors about Google's optical module supply chain, Luxshare Precision hit a historical high during the trading session, and Mingpu Optomagnetic hit the upper limit.

The optical fiber concept also followed suit, with Zhongtian Technology hitting the upper limit and setting new historical highs. This forms a cross-market resonance with the strong performance of the optical communication sector in the Hong Kong stock market in the morning - Changfeng Optical Fiber Cable, FIT HON TENG Hong Kong stocks rose by more than 9% in the morning, with the main line of computing infrastructure being highly praised by funds in both A and Hong Kong stock markets on the same day.