Standard & Poor's Corp. has put its ratings on 22 national and regional banking companies and one thrift firm, as well as their various units, on watch for downgrade, saying the companies could face downgrades within 90 days.

The agency made its announcement Monday, just days before the federal government is scheduled to release results of its stress tests on 19 banking companies.

Subscribe Now

Access to authoritative analysis and perspective and our data-driven report series.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.