36Kr learned that the three major A-share indices collectively fell during the midday break, with the Shanghai Composite Index down 1.13%, the Shenzhen Component Index down 2.14%, and the ChiNext Index down 2.42%; the oil and gas, and coal sectors surged collectively, with CNOOC approaching the daily limit, PetroChina and China Coal Energy rising over 7%, and China Shenhua rising over 6%; the power grid equipment sector strengthened, with SAC and San Bian Sci-Tech hitting the daily limit; computing power stocks declined, with Robotech falling over 10% and Yuanjie Technology falling over 8%