【中文版】

国金50指数是国金证券基于50只具有市场代表性的股票设计的指数，覆盖了沪、深两个市场的股票，反映沪深市场整体的走势。这50只股票是从沪深两市的所有股票中筛选出来的，具有较高的市场占有率和较大的行业覆盖率，且在市值、流通市值和交易额等方面具有较大优势，因此可以作为市场风向标。

国金50指数的编制方法是在每个季度对样本进行一次调整，以保持样本的实时性和代表性。指数的计算方法是采用自由流通市值加权，以反映样本股的真实市场情况。该指数的推出对于投资者来说具有重要的参考价值，可以帮助投资者把握市场的整体趋势和热点板块的轮动。

国金50指数的推出时间是2014年，经过多年的发展和完善，已经成为投资者关注的重点指数之一。该指数的编制方法和样本调整方式也在不断优化，以更好地反映市场的变化和满足投资者的需求。

总之，国金50指数是一种重要的股票指数，具有较高的市场代表性和参考价值，对于投资者来说具有重要的参考意义。

【英文版】

Guojin 50 Index is a stock index designed by Guojin Securities based on 50 representative stocks, covering both the Shanghai and Shenzhen stock markets, reflecting the overall trend of the沪深market. These 50 stocks are screened from all stocks in the two markets, with high market share and large industry coverage, and have significant advantages in terms of market capitalization, circulating market capitalization, and trading volume, so they can serve as market indicators.

The compilation method of Guojin 50 Index is to adjust the sample once every quarter to maintain real-time and representative samples. The calculation method of the index is to use free-float market capitalization weighted to reflect the true market situation of the sample stocks. The launch of this index is of great reference value for investors, helping them grasp the overall trend of the market and the rotation of hot sectors.

The launch time of Guojin 50 Index is 2014. After years of development and improvement, it has become one of the key indexes investors focus on. The compilation method and sample adjustment method of this index are also constantly being optimized to better reflect market changes and meet investors' needs.

In summary, Guojin 50 Index is a crucial stock index with high market representation and reference value, which has significant reference significance for investors.