Esoteric securities backed by these mortgages were grossly mis-valued by the computer models of big Banks and credit rating agencies.

大银行的电脑模式和信用评级机构极其严重地误估了这些靠按揭支撑的非公开证券。

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Loans, and simple debt securities that are similar to loans, would be valued at their cost, provided Banks can show they are being held for the long term-as most Banks will try to.

假如银行能证明这些资产能被长期持有—象大部分银行试图做的，贷款和与其类似的简单债务证券将按成本计价。

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Too many existing mortgages and mortgage securities were being valued with no known bids, roughly the equivalent of having little or no equity in them.

FORBES: Briefing Book: A. Michael Lipper

Indexing clusters investment assets in securities which represent past success, are widely owned, and often fully valued.

FORBES: Focus On Assets And Liabilities When Planning Your Portfolio