Series 28 Product Activity, Clearing Relationships, and Changes That Affect Minimum Capital (3.1) Guide

This Series 28 lesson covers product activity, clearing relationships, and changes that affect minimum capital (3.1) within Net Capital. Read it as an introducing broker-dealer FINOP control lesson: the exam usually asks what must be classified, reconciled, filed, preserved, restricted, or escalated so the firm stays inside its financial and operational limits.

Learning Objectives

• Assess how firm activity in stocks, bonds, derivatives, or reverse repurchase agreements can affect minimum capital treatment.
• Determine when a change in clearing relationship alters how the firm should evaluate its capital requirement.
• Identify product or business-line changes that should trigger a reassessment of introducing-firm capital assumptions.
• Evaluate whether a planned expansion into new activity would require higher capital before the firm proceeds.
• Distinguish an operational review issue from a true change in minimum capital requirement caused by business activity.
• Assess whether product complexity or financing structure creates capital implications beyond routine operations oversight.
• Determine the regulatory consequence when the firm continues using an outdated minimum capital assumption after business changes.
• Select the best control response when business activity begins to blur the line between introducing and carrying-firm obligations.
• Distinguish whether a new product or financing activity changes the minimum requirement itself, changes deductions or haircuts, or affects both.

Key Concepts

• Classification comes before arithmetic in Series 28 capital questions.
• Introducing-firm status matters, but it does not remove the need for conservative capital treatment.
• A final net capital result can trigger restrictions, notices, approvals, or business-curtailment decisions.

Exam Focus

This section is most likely to test classification, deductions, thresholds, haircuts, allowable assets, liabilities, and the consequence of the final capital position. Strong answers identify the control question before choosing the filing, recordkeeping, calculation, or operational response. Weak answers often sound plausible because they use familiar broker-dealer vocabulary while skipping the introducing-firm boundary or the evidence that a FINOP should require.

Series 28 is especially unforgiving when a candidate treats the topic as ordinary back-office administration. The exam expects principal-level judgment: what must be reviewed, what must be supportable, what must be retained, and what must be escalated when the facts stop being routine.

How to Apply This Section

Start by identifying the broker-dealer status and the method or threshold being tested. Then classify each asset, liability, receivable, deduction, haircut, or support arrangement before performing any calculation. If the result weakens capital, ask what restriction, notice, approval, or escalation follows.

Use this sequence when a question feels dense:

Decision Table

Common Pitfalls

• Doing math before deciding whether the item belongs in the calculation.
• Treating a valuable business asset as allowable without checking capital treatment.
• Stopping at the number and missing the required FINOP response.

Review Checklist

Before leaving this section, make sure you can address these points:

• Assess how firm activity in stocks, bonds, derivatives, or reverse repurchase agreements can affect minimum capital treatment.
• Determine when a change in clearing relationship alters how the firm should evaluate its capital requirement.
• Identify product or business-line changes that should trigger a reassessment of introducing-firm capital assumptions.
• Evaluate whether a planned expansion into new activity would require higher capital before the firm proceeds.
• Distinguish an operational review issue from a true change in minimum capital requirement caused by business activity.
• Assess whether product complexity or financing structure creates capital implications beyond routine operations oversight.
• Determine the regulatory consequence when the firm continues using an outdated minimum capital assumption after business changes.
• Select the best control response when business activity begins to blur the line between introducing and carrying-firm obligations.
• Explain how the introducing broker-dealer boundary affects the answer.
• State what evidence a FINOP should expect to review or preserve.

Key Takeaways

• Series 28 questions usually test control judgment more than isolated definition recall.
• The best answer normally classifies the issue, checks the firm boundary, and chooses a documented FINOP response.
• Reporting, operations, capital, customer protection, and records topics often overlap in the fact pattern.
• When facts are incomplete or financially stressful, conservative classification and timely escalation are usually safer than informal handling.