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资本市场是一个有助于实现资源有效配置的市场, 实现这个功能的途径之一是寻找价值被低估的股票, 这就需要通过比较股票的市场价格与其内在价值来判断某只股票的潜质，比较几种股票估价模型,以期对投资者的投资组合及监管方的监管措施提供一些建议。把股票价格决定的不同数学模型进行组合运用, 从不同方面评估出股票价格, 并在此基础上运用均值方差模型对评估出的股票价格进行风险测评。为了防范风险, 确保投资盈利的实现, 提出从总赢利中剔除风险部分, 建立了安全盈利的数学模型, 给出了安全盈利的量化空间。

Capital market is a marketplace helping realize effective allocation of resource , realizing one of this functional approach is the stock seeking value being underestimated, be requiring that the stock market price judges some latent stock quality by comparing than coming inherent value right now, several kinds stock evaluate model, to expect the portfolio formation to the investor and to oversee square inspection measure providing a little suggestion comparatively. The combination the different mathematic model that share price decides is carried out applies , appraise out share price never with aspect, the risk being in progress to the share price estimating that out measures the model wielding mean value method difference on joi