联美控股涨停走出4连板，4天累计涨幅达46.26%。

Core Insights - 联美控股 has experienced a significant stock price increase, achieving a limit-up and marking its fourth consecutive trading day of gains, with a total increase of 46.26% over four days [1] Company Performance - The stock of 联美控股 has shown remarkable performance, reaching a limit-up on the latest trading day [1] - The cumulative increase of 46.26% over the past four days indicates strong investor interest and market confidence in the company [1]