大盘进入瓶颈期，板块轮动有机会

Market Overview - The A-share market continues to experience high volatility, with major indices showing mixed performance this week. The Shanghai Composite Index closed lower, while the Shenzhen Component and ChiNext indices recorded gains [1][4]. - The market appears to be entering a bottleneck phase after a sustained rally, particularly due to the significant rise in technology stocks, making further increases challenging [1][12]. Index Performance - The Shanghai Composite Index faced resistance at the 3900-point level, reaching a high of 3899.96 points before dropping to a low of 3801 points, ultimately closing at 3831.66 points, down 1.15% for the day and 1.3% for the week [4][12]. - The Shenzhen Component Index hit a new high of 13328.1 points but fell to 12915.97 points, closing at 13075.66 points, down 1.06% for the day but up 1.14% for the week [6][12]. - The ChiNext Index reached a high of 3168.68 points before closing at 3095.85 points, down 1.64% for the day but up 2.34% for the week, marking a seven-week upward trend [6][12]. Sector Analysis - The technology sector remains the primary driver of the recent market rally, with the CSI Information Technology Index rising by 2.59% and the CSI Semiconductor Index increasing by 6.48% this week [12]. - In contrast, the financial and pharmaceutical sectors, which performed well in the first half of the year, have seen declines, with the CSI Pharmaceutical Index down 1.38% and the CSI Financial Index down 3.71% this week [12]. - The banking sector has experienced a three-month decline, with the CSI Bank Index and Securities Insurance Index both down 4%, significantly impacting the performance of the Shanghai Composite Index [12]. Stock Movements - Low-priced stocks under 4 yuan have shown remarkable performance this week, with several stocks like Yongtai Energy and Shanghai Construction rising significantly, with Shanghai Construction increasing by 31.7% despite a drop on the last trading day [10][13]. - The increase in high-priced stocks has been notable, with the number of stocks priced over 100 yuan rising sharply, and the number of stocks priced over 1000 yuan doubling [13].