This week,Bank of America said it received a letter from investors holding almost fifty billion dollars in mortgage-backed securities.

VOA: special.2010.10.22

We did have a large,short position in subprime mortgage-backed securities, which has paid off enormously for the University and really helped protect assets in the past nine months or a year.

我们确实曾持有很多,次级抵押担保证券的空头,它们为耶鲁赚了不少钱,并且在过去的9个月或1年间,为资产保值发挥了实在的作用

耶鲁公开课 - 金融市场课程节选

The central bank said it would buy up to an additional seven hundred fifty billion dollars in mortgage-related securities.

VOA: special.2009.03.20

The Fed established new lending programs, and approved large purchases of government securities and mortgage-related securities.

VOA: special.2009.08.28

One way to make capital available for new loans is to sell mortgage-backed securities.

VOA: special.2009.09.04

Banks took big losses as they traded mortgage-related securities that went bad.

VOA: special.2010.01.22

The central bank also announced that it would purchase up to $750 billion of additional mortgage-backed securities, which lost value with the collapse of the U.S.housing market.

VOA: standard.2009.03.18