【摘要】 证券市场的核心问题是收益与风险的关系及如何在两者之间权衡。本文对沪、深两市的两类“极端”股票 ,即绩优股和ST股的系统风险与非系统风险进行了比较分析 ,结果表明 :高收益类股票总体风险的平均水平远小于ST类股票的总体风险的平均水平 ;在总风险构成方面 ,非系统风险均占主要部分 ( 70 %以上 ) ,这说明中国证券市场仍是投机性较强的市场更多还原

【Abstract】 The relation of the return and risk is the fundament of the market. The article dealt with two classes "extreme" stock, that is, high return stock and ST stock. The system risk and non system risk are considered. The results show that: The total risk of the high return stock is less than the ST’s. For the structure: non system risk is the main parts (more than 70%). That is: The security market is in strong arbitrage.更多还原