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

In products labelled as ETFs, at least 80% of the portfolio must comprise securities matching the fund's name.

在以etfs为标签的产品中，至少80%的组合包括了符合其基金名称的证券。

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In effect, with Bear Stearns being sold for such a low price, including its valuable office property, the price of the securities portfolio is zero.

随着贝尔斯特有效的以这样一个低价售出，包括他那些有价值的办公产业，而那些安全的办公文件却不值钱。

youdao

So 90% of your portfolio is in domestic marketable securities and only 10% is invested in things like real estate or venture capital or private equity -hardly enough to make a difference in terms of the portfolios returns.

于是90%的投资都在本国有价证券中,仅10%用于比如不动产,风险资本或私募股权投资,这一小块几乎对投资回报,没有什么作用

耶鲁公开课 - 金融市场课程节选

With a separate account, the cost basis of the securities in your portfolio is yours alone.

FORBES: Move over, mutual funds

Still another possibility, Moran said, is the Fed might opt to increase the length of the securities in its portfolio.

FORBES: Fed Expected To Try To Sooth Markets But Not Undertake New Quantitative Easing Tuesday

Virtually every time money moves, whenever money managers or securities in a portfolio turnover, a brokerage facilitates the transactions and gets paid a commission.

FORBES: Investigating Brokerages (May 1, 2002 )