Part of the problem is that much of the Alt-A lending came at the tail-end of the credit boom in late 2006 and early 2007.

问题的部分原因在于很多次优按揭贷款发放于2006年末到2007年初，这段时期正好是信贷膨胀的末期。

youdao

Banks have already sold a sizeable chunk of their Alt-A holdings to hedge funds and other asset-management firms, often at large discounts.

银行则已经将很大一部分的次优按揭大打折扣地转让给了对冲基金以及其它资产管理公司。

youdao

Not only do subprime delinquencies continue to rise, but defaults on prime and Alt-A loans (those to good- or middling-quality borrowers) have started to climb too.

不仅次级房贷破产在继续增加，而且优级及次优级贷款（对那些好的或中级好的贷款者的贷款）破产也开始上升。

youdao

Alt A loans are somewhat in-between prime and subprime mortgages on the risk scale.

NPR: Mortgage Crisis Spreads To Conventional Loans

They consistently rated shares in securitized pools of mortgages, even subprime and Alt A mortgages, as AAA, causing the downfall of major financial institutions.

FORBES: Media Parrot Obama Financial Crisis Campaign Propaganda

First, new foreclosures are still coming in huge numbers, thanks to record levels of negative equity (around one in five homeowners with a mortgage), and Alt-A mortgage resets still haven't peaked.

FORBES