What it means
The six letters give the framework its name and its structure. Capital adequacy asks whether the bank has enough of its own money absorbing losses; asset quality looks at how likely the loan book is to be repaid; management assesses the competence and controls of the people running it.
Earnings covers the quality and sustainability of profits, liquidity covers the ability to meet withdrawals and obligations, and sensitivity covers exposure to movements in interest rates and other market prices. Each of the six components receives a score between 1 and 5.
A 1 means sound in every respect, a 3 means supervisory concern that requires attention, and a 5 means critically deficient and at risk of failure. Examiners then set a composite rating, which is informed by the component scores but is a judgement rather than a pure arithmetic average.
The composite matters commercially, not just administratively. Banks rated 1 or 2 are generally left alone between examinations and can expand, acquire and pay dividends with little friction.
A 3 brings closer monitoring, while 4 and 5 typically trigger formal enforcement action, restrictions on growth and constraints on dividends. Two components are worth singling out because they carry unusual weight.
Management is scored on judgement rather than numbers, covering risk controls, succession, board oversight and the accuracy of the bank's own reporting, and a weak management score often drags the composite down even when the ratios look fine. Sensitivity to market risk was added later than the other five, reflecting how much damage interest rate mismatches can do to an otherwise well-capitalised lender.
Business people encounter CAMELS indirectly rather than directly, because the ratings are not disclosed to customers or shareholders. What is visible are the consequences: a sudden halt to a bank's acquisitions, an unexplained capital raise, or a change in its deposit insurance assessment can all signal that a supervisor has moved the rating.
Corporate treasurers who spread deposits across banks pay attention to the same public ratios examiners use, precisely because the official score is out of reach.
In practice
Real-world examples.
Example
A community bank grows its commercial property lending quickly, and arrears climb from 1% to 4% of the book. Examiners cut the asset quality score from 2 to 4, the composite moves from 2 to 3, and the bank's planned branch acquisition is quietly shelved.
Example
A bank funded heavily by long-dated fixed-rate mortgages faces a sharp rise in short-term rates. Its capital and asset quality scores stay strong, but the sensitivity score falls to 4 because its funding costs reprice far faster than its loan income.
Example
A corporate treasurer managing $30 million of operating cash reviews the published capital and liquidity ratios of three banking partners. She cannot see their CAMELS ratings, so she uses the same public inputs to set internal deposit limits for each bank.
Formula
Calculation
There is no official formula, since the composite is a supervisory judgement, but examiners and analysts often approximate it with a weighted score.
Approximate composite = Sum of (component score x component weight)
Take a mid-sized bank scored as follows, using illustrative weights that sum to 100%: capital adequacy 2 at 20%, asset quality 3 at 20%, management 2 at 20%, earnings 3 at 15%, liquidity 1 at 15% and sensitivity 2 at 10%.
Capital: 2 x 20 = 40.
Asset quality: 3 x 20 = 60.
Management: 2 x 20 = 40.
Earnings: 3 x 15 = 45.
Liquidity: 1 x 15 = 15.
Sensitivity: 2 x 10 = 20.
Total = 40 + 60 + 40 + 45 + 15 + 20 = 220.
Weighted score = 220 / 100 = 2.2, which rounds to a composite rating of 2.
One underlying ratio feeding the capital score is the Tier 1 capital ratio, calculated as Tier 1 capital divided by risk-weighted assets. With $180 million of Tier 1 capital against $1,500 million of risk-weighted assets, the ratio is $180m / $1,500m = 12%, comfortably above typical minimums and consistent with the score of 2 above.Case study
Seen in the real world.
Cedar Ridge Savings Bank is a fictional lender created for this illustrative example. For six consecutive years it held a composite rating of 2, with strong liquidity, a Tier 1 ratio around 13% and a conservative residential loan book. Growth was modest, and the board grew impatient with returns that trailed peers.
The bank then pushed into construction lending, tripling that portfolio in two years while keeping the same three-person credit team. Capital and liquidity stayed healthy, but examiners marked management down to a 3 because underwriting standards and monitoring had not kept pace with the growth. When a downturn pushed construction arrears to 6%, asset quality fell to a 4 and the composite dropped to 3.
The consequences in this illustrative scenario were immediate and commercial. Cedar Ridge was required to submit a capital plan, suspend its dividend and pause new construction commitments, and its deposit insurance assessment rose. Restoring the composite to 2 took nearly three years of shrinking the risky portfolio and rebuilding the credit function.
Watch out
Common mistakes.
- Assuming a good capital ratio guarantees a good CAMELS rating. Management quality and asset quality frequently drive the composite down even when capital looks ample.
- Reading the scale backwards and thinking 5 is the best score. In CAMELS, 1 is the strongest rating and 5 signals a bank close to failure.
- Expecting to look up a bank's CAMELS rating. The ratings are confidential supervisory information, and a bank disclosing its own rating publicly would generally be in breach of the rules.
Questions
People also ask.
What does the S in CAMELS stand for?
Sensitivity to market risk, meaning how much the bank's earnings and capital would move if interest rates, exchange rates or commodity prices shifted.
Is the composite just the average of the six components?
No, it is informed by the components but set by examiner judgement, and a single severe weakness can pull the composite below the arithmetic average.
How often is a CAMELS rating updated?
Typically at each full examination, which for most banks means every twelve to eighteen months, though a supervisor can revise a rating sooner if conditions deteriorate.
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