On June 1, the A-share market exhibited a pattern of initial gains followed by declines throughout the trading day, with all four major stock indices closing in negative territory. The Shanghai Composite Index settled at 4,057.74 points, marking a decrease of 0.27%. Meanwhile, the Shenzhen Component Index finished at 15,340.36 points, down by 1.51%. The ChiNext Index closed at 3,950.94 points, experiencing a 2.15% drop, and the STAR Market Composite Index ended at 1,992.23 points, declining by 3.78%. In terms of sectoral performance, semiconductors, communication equipment, and electronic components were the leading decliners. Dongtian Micro saw its shares plummet over 14%, Changguang Huaxin's stock dropped more than 13%, and Cambridge Technology's shares declined over 9%. On the flip side, the coal, petrochemical, and cultural media sectors emerged as the top performers. Jinkong Coal Industry, Zhengzhou Coal Electric, and Visual China all hit their daily price limits, while Xinfengming's stock rose over 6%. Across the market, 3,774 stocks advanced, while 1,678 declined. The total turnover on the Shanghai and Shenzhen stock exchanges reached RMB 2.9 trillion, representing a decrease of RMB 444.1 billion from the previous trading day.