Moody's Investors Services, a credit rating system, put several banks on review for a potential downgrade following the collapse of Silicon Valley Bank (SVB). The Federal Deposit Insurance Corporation (FDIC) announced the closure of Silicon Valley Bank on Friday amid a run on the bank, a move that raised concerns about the potential of future bank collapses. Following that collapse, Moody's placed First Republic Bank (FRC), Zions (ZION), Western Alliance (WAL), Comerica (CMA), UMB Financial (UMBF) and Intrust Financial on review, meaning the banks are now perceived as more risky investments by lenders.