Some say that housing lending from the two companies contributes more than 50%, and more than 100 million people hold the security portfolio of the two.

据悉，“两房”提供的房贷超过全美房贷的一半，而全球更是有过亿人持有“两房”的证券产品。

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In this paper, a commentary and an annotation to the basic ideas and methods of the asset portfolio theory, the security portfolio theory and the capital asset pricing model (CAPM) are presented.

对资产组合理论、证券组合理论、资本资产定价模型的基本思路及方法进行了评述，并对几点不足之处进行了改进及实证检验。

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Different securities perform differently at any point in time, so with a mix of asset types, your entire portfolio does not suffer the impact of a decline of any one security.

不同的证券在不同的时间会有不同的表现，所以混合资产的类型，你的整个资产组合不会因为某一种证券的颓败而受到影响。

youdao

The majority of our marketable equity security portfolio balance is concentrated in ASML Holding, N.

ENGADGET: Intel posts Q4 2012 earnings: $2.5 billion in profit on $13.5 billion in revenue

Even Agus Widjoyo, a retired lieutenant-general considered a reformer and touted for a security portfolio, has his detractors.

ECONOMIST: An awkward transition

At a minimum, doing so will alert them to the risks that attend some of the policy choices affecting the economic, financial and technology security portfolio.

CENTERFORSECURITYPOLICY: The Felix Bloch Affair: Assessing The Damage To US Security