以史为鉴，沪指站上3500点后曾走出两轮大行情！大盘冲高回落是“空中加油”吗？高手看好这些新主线！

Group 1 - The Shanghai Composite Index experienced fluctuations above 3500 points, with a notable increase of 1.3% during the day before closing at 3510.18 points, reflecting a slight gain of 0.01% [1][9] - The trading volume in the Shanghai and Shenzhen markets reached 171.21 billion yuan, an increase of 21.8 billion yuan compared to the previous day [1] - The recent competition saw participants successfully capitalize on market trends, particularly in sectors like electronic cloth, PCB, and rare earth permanent magnets [3][5] Group 2 - The upcoming 66th competition will allow participants to engage in simulated stock trading with a virtual capital of 500,000 yuan, running from July 14 to July 18, with registration open from July 12 to July 18 [12][17] - Cash rewards for the competition are structured based on performance, with the first-place winner receiving 688 yuan and additional prizes for subsequent ranks [12][13] - Participants can gain access to exclusive market insights and analysis through the "Fire Line Quick Review" service, which provides valuable information on market trends and investment logic [7][14] Group 3 - The commercial aerospace sector is gaining attention due to improvements in rocket launch facilities and the anticipated first flights of new generation reusable rockets in 2025 and 2026 [11] - Historical data indicates that the Shanghai Composite Index has previously experienced significant rallies after breaking through the 3500-point mark, suggesting potential bullish sentiment in the current market [9] - Analysts are optimistic about sectors such as brokerage firms, high-temperature superconductors, high-speed switches, FPGA substrates, and commercial aerospace, indicating a shift in investment focus [10]