国泰君安国际（01788）今日盘中大跌7.01%，引发市场关注。这一显著跌幅可能与近期南向资金的减持行为有关。
根据最新数据显示，7月14日，南向资金减持国泰君安国际1621.50万股。截至当日收盘，港股通共持有国泰君安国际140359.34万股，占流通股14.75%。值得注意的是，尽管出现减持，国泰君安国际近期表现强劲，近5个交易日上涨35.73%，港股通累计增持14607.00万股；近20个交易日更是大涨453.45%，港股通累计增持76248.13万股。
此外，7月14日的港股通成交榜显示，国泰君安国际在沪港通和深港通中均位列前茅。在深港通中，该股买入及卖出金额达15.70亿，净流入0.72亿；在沪港通中，成交更为活跃，买入及卖出金额高达39.23亿，净流入0.19亿。今日的大跌可能反映了投资者对近期快速上涨后的获利回吐，以及对南向资金减持的担忧。投资者应密切关注该股后续走势及相关资金流向。
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