portfolio theory

基本解释

And I would ban portfolio theory immediately.
而且我会立即禁掉投资组合理论。
The Quarterly: What are your concerns with statistics and portfolio theory?
季刊：您对于统计学和投资组合理论抱有怎样的担心呢？
Because this is an article on benchmarking, and not portfolio theory, Listing 4 leaves out the code for the EfTask inner class.
因为本文讨论的是基准测试，而不是投资组合理论，所以我们不用理会 EfTask 内部类的代码。

The theory of mutual funds is: nobody is supposed to be holding anything other than-- ... the ideal theory of mutual funds--is holding something other than this tangency portfolio.
共同基金定理是指：,所有人都应该持有-,理想的共同基金定理说,都应该持有这种切线投资组合。
耶鲁公开课 - 金融市场课程节选
That's the theory of efficient portfolio calculation.
这就是最优投资组合理论。
耶鲁公开课 - 金融市场课程节选
Now, underlying our theory is the idea that we measure the outcome of your investment in your portfolio by the mean of the return on the portfolio and the variance of the return on the portfolio.
而理论的基础是,我们通过计算,组合收益率的均值，和组合收益率的方差,来衡量一个投资组合的优劣。
耶鲁公开课 - 金融市场课程节选

Modern portfolio theory advocates blending asset classes to maximize expected return and minimize portfolio volatility.
FORBES: The Optimum Asset Allocation to Gold Is Always Zero