What it means
The programme was launched during the financial crisis, when investors doubted that big banks could absorb the losses on their loans and securities. The Federal Reserve led it, working with other bank supervisors, and it covered 19 large bank holding companies.
Each bank had to show that it could survive a severe scenario with higher unemployment and falling house prices. Supervisors estimated losses and earnings for each bank under two scenarios, a baseline and a more adverse one.
They then asked how much capital the bank would need to stay above set minimum ratios. If a bank fell short, it had to raise the shortfall by selling shares, converting other securities or finding other sources of capital.
The findings were published in 2009, and a number of the banks, ten of the nineteen, were told they needed additional capital. Publishing the results helped to restore confidence, because investors finally had a consistent view of each bank's condition.
Several banks raised capital soon after, and others repaid government support. SCAP became the model for later and more regular stress testing.
Regulators now run annual stress tests in many countries, and banks run their own internal ones. The idea is the same: ask what happens in a bad scenario, and make sure there is enough capital before the bad scenario arrives.
For non-bankers the lesson applies to any business. Scenario testing helps leaders see how much of a cushion they have, and being transparent about the results can calm lenders and investors.
Understanding the term also helps when reading history about the financial crisis. The test was a snapshot built on specific assumptions, and critics asked whether the scenarios were harsh enough.
It should be understood as an important step in crisis management rather than as a guarantee of safety.
In practice
Real-world examples.
Example
A large bank holding company is told that, under the adverse scenario, its capital would fall short of the target by several hundred million dollars. It announces a share sale to close the gap before the deadline.
Example
An investment analyst compares published results for several banks and prefers those with larger buffers above the requirement. She uses the data to adjust her recommendations on bank shares and explains the reasoning in a note to clients.
Example
A risk manager at a manufacturing company builds a similar scenario test, asking how a 20% fall in sales and a rise in borrowing costs would affect its covenants. The exercise shows it needs a larger cash reserve, and the finance director raises the idea with the board.
Formula
Calculation
Capital Ratio = Capital / Risk-Weighted Assets x 100
Capital Shortfall = Required Ratio x Risk-Weighted Assets - Capital After Stressed Losses
Worked example for a fictional bank. After applying the stress scenario, its Tier 1 common capital (the highest-quality capital, mainly shareholders' equity) is $3,200,000,000, and risk-weighted assets (assets adjusted for their riskiness) are $100,000,000,000. The required ratio for this illustration is 4%.
Capital Ratio = $3,200,000,000 / $100,000,000,000 = 3.2%
Required capital = 4% x $100,000,000,000 = $4,000,000,000
Capital Shortfall = $4,000,000,000 - $3,200,000,000 = $800,000,000
The fictional bank would need to raise $800,000,000 to meet the requirement.Case study
Seen in the real world.
Cascade National is an illustrative, fictional bank holding company with $100,000,000,000 of risk-weighted assets. In the fictional stress test the supervisors projected heavy loan losses, which left it with a capital ratio of 3.2% against a 4% requirement.
The bank had six months to raise $800,000,000. It sold new shares, converted some preferred stock into common equity and trimmed a risky loan portfolio.
When the bank published its updated position, the illustrative market reaction was calm and its share price recovered. The chief executive said the exercise had forced the bank to confront its weakest assets sooner than it otherwise would have. The bank also began running its own quarterly scenario tests so that it would never again learn about a weakness from an outside review.
Watch out
Common mistakes.
- Assuming SCAP was an ordinary annual review, when it was a one-off emergency exercise in 2009.
- Reading a pass as proof that a bank could survive any crisis, when the test depended on specific scenarios and assumptions.
- Confusing the stress test with a bailout, when it measured capital needs and did not itself provide funds.
Questions
People also ask.
Which banks were included?
The 19 largest US bank holding companies at the time were tested.
What did the banks need to show?
That they would keep enough high-quality capital to continue lending even in a severe downturn.
How did SCAP influence later practice?
It served as a template for regular supervisory stress tests, which are now a standard part of bank regulation.
From the founder's library
Take it further with the book.
Build your financial confidence beyond this definition. Shihan's full-length guide, Accounting Fundamentals, takes the same plain-English approach and turns it into a complete, practical playbook for non-finance managers, business owners and students - with chapter-end quiz answers and presentation slides included.
25% off with code MMHQ25, applied at checkout. Priced in USD - checkout may show the equivalent in your local currency.
View the book and save 25%