It represent in the model setup with the linear complete transfer and the minimum risk of loans portfolio as the target function and the constraint of earning yield risk value.

具体表现为运用线性完备变换方法，以贷款组合风险最小为目标函数，以贷款组合期望收益率为约束条件建立模型。

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One important decision of bank management is to optimize the loan portfolio structure so as to hold a loan portfolio with possible highest yield and relevant lowest risk.

银行在经营中的一项重要决策，就是对贷款组合结构进行优化，以持有一个具有尽可能高的收益率和尽可能小的风险的贷款组合。

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Floated in April 2011, it is targeting annual dividend income of 5% in the current year and its current portfolio yield is 5.8%, before fees.

WSJ: A Secure High-Yield Alternative?

Cost of carry on my bond portfolio of high yield paper is also minimal, but shows a net positive variance of over 500 basis points.

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This means that for investors seeking income-oriented opportunities with daily liquidity, a well discriminated, quality high yield portfolio remains one of the most attractive investments across all fixed income markets.

FORBES: Should Investors Still Go For High Yield?