（原标题：亚太股市集体飘绿，金价跌破3930美元关口，国内金饰跌破1200元） 10月28日，A股市场冲高回落，沪指盘中突破4000点大关，再创十年新高，创业板指一度涨超1%。截至收盘，三大指数集体收跌。沪深两市成交 额2.17万亿，较上一个交易日缩量1913亿。 盘面上，市场热点快速轮动，福建板块掀起涨停潮，10余只个股涨停，平潭发展8天6板，厦门港务、厦门空港等多股涨停。核电板块表现活跃， 东方钽业4天3板，安泰科技2连板。机器人概念股走强，青岛双星、亚士创能双双3连板，宁波精达、方正电机等多股涨停。军工板块盘中快速拉 升，江龙船艇直线20cm涨停。 下跌方面，有色金属板块集体下跌，铜陵有色跌停。有色金属、风电设备、油气等板块跌幅居前。 亚太市场主要指数收跌。 上一个交易日，日经225指数突破5万点大关。中国国际问题研究院亚太所特聘研究员项昊宇认为日股存在泡沫化风险，主要是因为日股缺乏经济 基本面的支撑，而且过度依赖宽松货币政策和财政扩张的刺激。他进一步表示，若高市新内阁的大规模支出计划引发国债抛售、收益率飙升，或 外部市场出现大幅回调，都可能触发投机性资金快速撤离，导致资产价格大幅修正，"日本央行对金融 ...

Market Overview - The A-share market experienced a pullback after reaching a ten-year high, with the Shanghai Composite Index briefly surpassing 4000 points before closing lower [1] - The total trading volume in the Shanghai and Shenzhen markets was 2.17 trillion yuan, a decrease of 191.3 billion yuan compared to the previous trading day [1] Index Performance - Major indices closed lower: Shanghai Composite Index at 3988.22 (-0.22%), Shenzhen Component Index at 13430.10 (-0.44%), and ChiNext Index at 3229.58 (-0.15%) [2] - Other indices also showed declines, including the CSI 300 (-0.51%) and CSI 500 (-0.52%) [2] Sector Performance - The market saw rapid rotation of hotspots, with the Fujian sector experiencing a surge, leading to over ten stocks hitting the daily limit [3] - The nuclear power sector was active, with stocks like Dongfang Tantalum and Antai Technology showing significant gains [3] - Robotics concept stocks also performed well, with companies like Qingdao Double Star and Yashichuang Energy achieving multiple consecutive gains [3] - The military sector saw a sharp rise, exemplified by Jianglong Shipbuilding hitting the daily limit [3] Gold Market Dynamics - International gold prices fell below $3940 per ounce, with a nearly 1% decline observed [9] - Domestic gold jewelry prices saw significant reductions, with some brands dropping below 1200 yuan per gram [10] - Major gold retailers reported price decreases, with Lao Miao Gold at 1192 yuan per gram, down 28 yuan from the previous day [11] - The decline in gold prices is attributed to three main factors: changes in the macro environment, technical selling pressure due to overbought conditions, and rising U.S. Treasury yields reflecting increased market risk appetite [12][13]