主板 10 个交易日内第 2 次涨停，且两次涨停之间至少断开 1 天（不含连板）。按当日成交量相对 50 日均量排序。短线信号，追涨风险高。 The second limit-up close within 10 sessions on the main board, with at least one session between the two (not a consecutive run). Ranked by volume versus the 50-day average. A short-term signal with high chase risk.
持有周期：短线 · 1-5 日。次日开盘买入，5日 -0.8%、20日 -2.8%（相对全市场，回测）。追涨型：信号出现时股价多已上涨，次日追入历史上平均跑输。 Holding horizon: Short-term · 1-5 days. Bought at the next open: 5D -0.8%, 20D -2.8% vs market (backtest). Chase-type: the stock has usually already run up; buying the next day has lagged the market on average.
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最近一次筛选中强度最高的合格股票，
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