微盘股，通常指市值较小、流动性相对偏低的上市公司股票。它们并非简单的"小盘股"，而是"小盘股 中的小盘股"。从过往实践来看，其投资标的往往具备以下鲜明特征： 近年来，微盘股投资策略备受市场瞩目，以其独特的波动性和高弹性吸引了众多目光。然而，对于大多 数投资者而言，微盘股投资仍笼罩着一层神秘面纱。它究竟是价值发现的沃土，还是一场高风险的博 弈？今天让我们来探讨下投资微盘股，到底投资的是什么？ 微盘股：一个怎样的"小众江湖"？ 策略如何落地：量化模型与严格风控 机构参与率低：大型机构资金鲜少涉足，使得股价不易被大额调仓所冲击，市场情绪相对独立。 筹码结构稳定：股价跌至低位后，现有股东抛售意愿降低，甚至核心股东有较强的做高股价动机，形成 天然的"安全垫"。 交投清淡，换手率低：日常成交金额小（多为千万级别），股价长期处于低估或无人问津的状态，便于 量化模型通过批量指标识别逆向投资标的。 估值修复弹性大：由于抛压轻，通常来说一旦获得市场关注，即使少量增量资金也能驱动股价快速、显 著地上涨。 投资的本质：一场"关注度"的博弈 与传统价值投资聚焦公司基本面（盈利能力、行业前景）不同，也区别于成长投资追逐高景气板块，微 盘 ...

Core Viewpoint - The micro-cap stock index has consistently outperformed major broad-based indices this year, attracting significant market attention. The excess returns are primarily driven by PB (Price-to-Book) recovery and valuation switching rather than profit growth [1][12]. Historical Performance - Data shows that the micro-cap stock index has outperformed major broad-based indices in most years since 2010, with the exception of 2017 and 2020, typically generating excess returns [2]. - Even with a reduction in trading frequency from daily to quarterly, micro-cap stocks continue to yield substantial returns, indicating the stability of their excess returns [4]. Macro Factors - Historical experience indicates two macro factors significantly influence micro-cap stock performance: 1. Micro-cap stocks tend to perform well when liquidity is abundant. 2. They also show better gains during periods of declining inflation, particularly in the latter stages of recessions and early recovery phases [5]. Drivers of Excess Returns - The core driver of excess returns in micro-cap stocks is valuation recovery. Analysis reveals that increasing trading frequency contributes minimally to excess returns, and that returns are not closely tied to profitability levels. Notably, micro-cap stocks with negative net profits have increasingly contributed to overall returns since 2018 [7]. - The report identifies that excess returns primarily stem from PB recovery and the switch from high to low valuations, with PB contribution and PB discount being the main sources of returns [7]. Investment Strategy - Data validation indicates that smaller market capitalization and lower PB values correlate with a higher probability of achieving excess returns over the next three months. Therefore, selecting small-cap stocks with low PB can effectively capture micro-cap opportunities [9][10]. Current Market Conditions - The current level of crowding in micro-cap stocks is at a historically high percentile, with valuations also at a relatively high historical percentile. Historical data suggests that when micro-cap PB is significantly higher than the overall market, their performance tends to be poor, as seen in 2017 and 2020 [10].