Quick Answer
Regulation Best Interest governs a recommendation to a retail customer; the suitability rule governs every recommendation it does not reach, and the two never both apply. Best interest means satisfying Disclosure, Care, Conflict of Interest, and Compliance without putting the firm's interest first. Suitability means reasonable-basis, customer-specific, and quantitative.
Pick the standard first: every downstream fact is tested against whichever bar applies.
Which One-Liners Win Points?
- Retail customer: a natural person, or that person's legal representative, using the recommendation primarily for personal, family, or household purposes. Regulation Best Interest governs.
- The suitability rule governs everywhere else, including an institutional account held by an entity and a natural person's business-purpose account.
- The institutional exemption removes only customer-specific suitability. It needs a reasonable basis that the customer can evaluate risk independently plus its affirmative indication of independent judgment. Where authority is delegated, test the agent.
- Care has three parts: understand the recommendation, fit this customer, fit the series. The "does not place its own interest ahead of the customer's" clause attaches to the second and third, not the first.
- The Conflict of Interest obligation makes the firm establish, maintain, and enforce policies that identify and, at a minimum, disclose or eliminate all conflicts, mitigate incentives to favor the firm, and eliminate sales contests and quotas tied to specific securities.
- Quantitative suitability is conjunctive: a series must be both excessive and unsuitable, with no control element. Churning needs control plus intent to generate commissions.
- The rule separately bars a transaction, a continuing purchase, or a strategy unless the customer has the financial ability to meet that commitment. That is affordability, not holding power.
- Equity gives ownership, a residual claim, growth orientation, and subordination to creditors. Debt gives a creditor claim, contractual interest and principal, income orientation, and seniority.
- Suitability tests the whole portfolio, and issue count alone does not prove diversification when issues share a sponsor, industry, or geography.
- A concentrated or speculative portfolio needs both holding power and investment management talent. Either alone fails.
- No fixed ratio of risk-averse to speculative holdings fits everyone. The mix comes from this customer's capacity to risk principal and income.
- Member private offering: a private placement issued by the member or a control entity. Its disclosure condition is two duties: the document must carry the use of proceeds, expenses, and selling compensation, and reach each prospective investor.
- Fair pricing: as principal, a fair price weighing its entitlement to a profit; as agent, a fair commission weighing the value of its service.
Which Numbers Matter Most?
| Item | Value |
|---|---|
| Institutional-account catch-all | at least $50 million in total assets |
| Control of a control entity | more than 50% of voting securities, profits, or losses |
| Offering proceeds to business purposes | at least 85% |
| Member private offering exemptions | 14 categories |
| Mark-up guide | the 5% Policy, a guide not a rule |
Which Gotchas Trip Students Up?
Exam Tip: Gotchas
- A natural person does not automatically get Regulation Best Interest. Ask what the account is used for; a business-purpose account stays under the suitability rule.
- Reasonable-basis and quantitative suitability survive the institutional exemption. Only the customer-specific one drops away.
- Preparing a compliant offering document and filing it away meets the content duty and fails the delivery duty, so the condition is not met.
- The 10-day clock belongs to an amendment or exhibit. The offering document itself is filed at or before it first reaches an investor.
- The Mark-Up Policy's exclusion needs a required prospectus or offering circular and a fixed public offering price. A Regulation A offering is excluded; a Regulation D private placement is not.
- Anti-intimidation governs conduct toward other members and market participants, never representative-to-customer conduct.
One-Breath Recap
Identify the standard first: Regulation Best Interest for a retail customer, the suitability rule everywhere else, never both. Regulation Best Interest runs on Disclosure, Care, Conflict of Interest, and Compliance, and best interest is never simply the cheapest product, though cost must always be weighed. Suitability runs on reasonable-basis, customer-specific, and quantitative, where a series must be both excessive and unsuitable, while churning also needs control and commission intent. Test a position against the whole portfolio, demand both holding power and investment management talent before a concentrated one, and commit at least 85% of a member private offering's proceeds to business purposes.
Need more than the recap? Read the full Best Interest and Suitability unit.