36Kr learned that the three major A-share indices collectively rose during the midday break, with the Shanghai Composite Index up 0.84%, the Shenzhen Component Index up 1.67%, and the ChiNext up 2.43%; the semiconductor sector surged, with FOCUS LIGHTINGS, JUFEI, and SANAN hitting the daily limit, Biwin rising over 12%, and Cambricon rising over 4%; the CPO concept strengthened, with Eoptolink rising over 11% and Zhongji Innolight rising over 6%; oil and gas stocks corrected, with PETROCHINA falling over 3%