Review how Series 27 determines firm category, minimum capital standards, and aggregate-indebtedness treatment.
Net capital starts with firm identity. Series 27 expects the FINOP to know what kind of broker-dealer the firm is, what minimum capital standard applies to that business model, and how aggregate indebtedness fits into the opening gate of the capital analysis. Candidates often rush toward arithmetic before establishing the correct regulatory frame. That is usually where the question is really won or lost.
The right sequence is simple. First classify the firm. Then identify the relevant minimum capital requirement. Then decide whether a liability belongs in aggregate indebtedness and whether any approved subordinations change that treatment. Only after those steps do the later deductions and haircuts make sense.
| Step | What the FINOP should ask first | Why it matters |
|---|---|---|
| Firm type | Is the firm introducing, carrying, market making, or otherwise operating under a different capital profile? | The minimum standard starts with the business model. |
| Method and threshold | Which minimum amount or percentage framework applies here? | You cannot test compliance until the correct floor is identified. |
| Aggregate indebtedness treatment | Which liabilities count in AI, and which items are excluded or treated differently? | AI is a leverage measure, so classification errors change the entire ratio. |
| Capital support items | Are approved subordinations or similar arrangements available and properly documented? | Not every liability weakens capital in the same way. |
| Final comparison | Does the firm’s computed net capital satisfy both the minimum requirement and any related ratio constraints? | Passing one gate does not excuse failure at the other. |
Series 27 questions often look simple because the numbers are small. The real trap is that one wrong classification at the beginning makes every later number meaningless.
Use these formulas as a study frame, not as a substitute for correct classification:
[ \text{Tentative Net Capital} = \text{Net Worth} + \text{Approved Subordinations} - \text{Nonallowable Assets} - \text{Operational Deductions} ]
[ \text{Aggregate Indebtedness Ratio} = \frac{\text{Aggregate Indebtedness}}{\text{Net Capital}} ]
The formulas are straightforward. The harder exam task is deciding what belongs in each bucket and whether the firm is being measured under the right framework in the first place.
flowchart TD
A["Start with the firm's actual business model"] --> B["Identify the applicable minimum capital standard"]
B --> C["Classify liabilities for aggregate indebtedness treatment"]
C --> D{"Are there approved subordinations or excluded items?"}
D -- "Yes" --> E["Adjust the capital framework using the rule-based treatment"]
D -- "No" --> F["Keep the ordinary liability treatment"]
E --> G["Compute net capital and compare it to the required minimum and related ratio limits"]
F --> G
This is what the exam wants from the FINOP: a clean order of operations. If the candidate starts by plugging numbers into a formula without classifying the firm and liabilities first, the answer often fails even when the arithmetic looks neat.
A FINOP is reviewing a net-capital question for a broker-dealer and immediately begins subtracting deductions from net worth. Which step should have been completed first?
A. Determining the firm’s applicable minimum capital framework and how its liabilities are treated for aggregate indebtedness
B. Applying securities haircuts to proprietary positions
C. Estimating the monthly expense run rate
D. Checking whether the firm has any customer complaints
Correct answer: A.
Series 27 is testing sequence. Before the FINOP calculates deductions and haircuts, the firm type, minimum capital standard, and aggregate-indebtedness treatment have to be identified correctly.