A proposed overhaul of the CAMELS rating system could be a tailwind for bank M&A by enabling institutions to secure better ratings under less stringent management criteria. On May 19, the interagency Federal Financial Institutions Examination Council released a long-awaited proposal to revise the CAMELS rating system, which measures an institution's capital adequacy, asset quality, management, earnings, liquidity and sensitivity to market risk on a scale of 1 to 5, with 5 being the worst.