Based on mathematical methods, the article explores the risk and profit of stock portfolio and analyzes the strategies and methods of stock investment portfolio.

在其风险与收益的控制方面，应运用数学方法研究股票投资组合的内涵，以便制定出正确的股票投资组合的策略。

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Knowing more about the characteristics of warrants may help you better understand the warrant price and the stock market movement, as well as manage your own equity investment portfolio.

加深认识窝轮之特性及作用，可助您更能掌握窝轮及股票市场脉搏及管理您的股票投资组合。

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Marc recently added the stock to the portfolio found in his investment newsletter, Forbes Low-Priced Stock Report .

FORBES: Investors Charmed By Management Changes At CHRS

Penney has some tough sledding ahead, but that it was the only stock in his portfolio that could return 15 times his investment because it trades at a discount to the value of its real estate and inventory.

FORBES: Warning Sign For P&G Chief? Ackman Can't Wait To Meet Him

As we testified, many other abuses such as personal trading by portfolio managers, underwriters parking investment banking client stock in affiliated mutual funds, payment of Investment Company Institute fees from fund assets, have yet to surface as concerns.

FORBES: The Great Mutual Fund Clean Up That Almost Happened (April 4, 2004 )