Bank of America has had its credit rating downgraded by Moody's.
The agency cited a decrease in the probability that the US government would step in and prevent the bank from failing in a crisis.
The ratings firm said it believes the government is likely to provide some level of support for financial institutions, but is also more likely now than during the 2008 financial crisis to allow a large bank to fail should it become financially troubled.
Moody's downgraded long-term debt ratings for Bank of America and Wells Fargo Bank N.A., and cut BofA's short-term rating and Bank of America N.A.`s long-term deposit rating.
The firm confirmed Citigroup's long-term rating, but downgraded its short-term rating.
