A-shares midday review: the STAR 50 Index opened lower and then rose sharply, gaining 3.6%, with sectors such as cultivated diamonds, non-metallic materials, and dental medical leading the gains.

The three major A-share indices mostly rose in the early session. By midday, the Shanghai Composite Index fell 0.37%, the Shenzhen Component Index rose 0.57%, the ChiNext Index rose 1.39%, the Beijing Stock Exchange 50 fell 0.93%, and the STAR 50 Index rose 3.6%. Across the whole market, total turnover was 215.03B yuan, up 186.6B yuan from the previous day, with more than 3,400 stocks declining.

In terms of sectors and themes, cultivated diamonds, non-metallic materials, dental healthcare, high-speed copper cable connections, and the semiconductor sector led the gains; insurance, coal mining and processing, power, airport and shipping, and securities sectors led the declines.

On the trading screen, the cultivated diamonds sector opened by pushing higher; Huanghe Whirlwind and Boyun New Materials hit the daily limit. Huifeng Diamonds, Sifangda, and Liliang Diamonds led the advance. The non-metallic materials sector opened lower but strengthened, showing strong performance; Changjiang New Materials, Sanxiang New Materials, and Longgao Co., Ltd. hit the daily limit, while Jinge New Materials and Lianrui New Materials saw leading gains.

The semiconductor sector saw choppy upward movement; Jingsheng Co., Ltd. and Yutai Micro reached the daily limit, while Cambrain, Xin Henghui, Yitang Co., Ltd., Shengke Communications, and Zhaoyi Innovation led the gains.

The insurance sector continued to fall sharply, with China PICC, China Life, and Ping An all down by more than 5%. The power sector underwent a deep adjustment, with Shenzhen Nandian A, Xichang Electric Power, and Ganneng Shares among the biggest decliners.

The airport and shipping sector was weak, with Juneyao Airlines, China Xinhua Airlines, and Spring Airlines leading the declines.