- Moody's slashed the credit ratings on 10 US banks on Monday.
- It also put major lenders like Bank of New York Mellon and US Bancorp under review for potential downgrades.
- Here's everything to know about the moves and what it says about the economic landscape.
On Monday, ratings agency Moody's lowered the credit ratings of 10 small- and mid-sized US banks by one rung, and placed a slate of larger firms under review for potential downgrades, with Bank of New York Mellon, US Bancorp, Northern Trust, and State Street among the bigger names.