收盘丨沪指涨1.36%重返3900点，全市场超4600股上涨

Market Overview - The total trading volume in the Shanghai and Shenzhen markets reached 1.87 trillion yuan, an increase of 136.3 billion yuan compared to the previous trading day [1][3] - All three major A-share indices rose, with the Shanghai Composite Index increasing by 1.36% to close above 3900 points, the Shenzhen Component Index rising by 2.06%, and the ChiNext Index gaining 3.02% [1][2] Sector Performance - Strong performance was observed in sectors such as CPO, copper-clad laminates, and consumer electronics, while the deep earth economy and cultivated diamond concepts also showed significant gains [2] - Conversely, sectors like electrolytic solution, coal, and civil aviation experienced declines [2] Stock Highlights - The deep earth technology concept saw a collective surge, with stocks like ShenKai Co. and Petrochemical Machinery achieving two consecutive trading limits, while several others hit the daily limit [2] - In the coal and gas sectors, companies like Antai Group and Baotailong saw declines exceeding 7% and 6% respectively [2] Capital Flow - Main capital inflows were directed towards electronics, machinery equipment, and communications sectors, while there were outflows from banking, precious metals, and coal sectors [5] - Notable individual stocks with net inflows included Industrial Fulian, New Yi Sheng, and Luxshare Precision, attracting 2.22 billion yuan, 1.82 billion yuan, and 1.59 billion yuan respectively [5] - Conversely, stocks such as CITIC Securities, Changying Precision, and Silan Micro faced net outflows of 619 million yuan, 545 million yuan, and 494 million yuan respectively [6] Institutional Insights - Guotai Junan noted that recent market fluctuations do not alter the long-term positive outlook for the stock market [7] - Qianhai Bourbon Fund indicated that after an unsuccessful market rally, a structural adjustment is expected, with a focus on adjustments in the latter half of October [8] - Shenwan Hongyuan emphasized that the current market trend is driven by capital flow, with technology remaining the main focus based on today's capital rankings [8]