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SIE Communications with the Public and General Best Interest Obligations and Suitability Requirements

This topic joins two things the SIE tests together: how communications are classified — correspondence, retail communication, institutional communication, by audience and headcount — and the obligation to act in a retail customer’s best interest under Regulation Best Interest.

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Understanding Trading, Customer Accounts and Prohibited Activities · 31%139 questions14% hard
31%of the exam is Understanding Trading, Customer Accounts and Prohibited Activities, the section this topic sits in.
139questions on this topic in the PrepScore bank.
45%are apply-level questions — the dominant cognitive demand here.
5are EXCEPT / NOT items, where the answer is the odd one out.
What the SIE asks

What you actually need to know

  • Correspondence up to 25 retail investors in 30 days; retail communication above that.
  • Which categories need principal approval before use, and which need filing with FINRA.
  • Regulation BI: the care, disclosure, conflict-of-interest and compliance obligations.
  • Why a recommendation must be suitable for the specific customer, not for customers generally.
How this topic behaves

What 139 questions on it look like

14% of the bank for this topic is rated hard — well above the exam average. Budget more time here than its blueprint weight alone suggests.

35% of the questions demand analysis rather than recall — you are asked to judge a described situation, not to name a definition.

compliance judgment86%
comparison14%

Question-type mix across the 139 questions in this topic.

From the bank

Three real communications with the public and general best interest obligations and suitability requirements questions

With the explanation — which is the part that teaches.

compliance judgment · easy · recall

Under FINRA communication rules, a written or electronic message is classified as correspondence when, within any 30 calendar-day period, it is distributed or made available to how many retail investors?

  1. A100 or fewer retail investors
  2. B25 or fewer retail investorscorrect
  3. CMore than 25 retail investors
  4. DAny number, as long as the recipients are existing customers
Why B is correct

Correspondence is any written (including electronic) communication distributed or made available to 25 or fewer retail investors within a 30-calendar-day period. Reaching more than 25 retail investors makes it a retail communication.

comparison · medium · understand

Which comparison best describes retail communications under communications-with-the-public rules?

  1. ARetail communications are private account statements, while correspondence is a fund's NAV calculation
  2. BRetail communications are limited to one institutional investor, while public communications are reviewed only after a complaint
  3. CRetail communications are oral trade instructions, while institutional communications are prospectus filings
  4. DRetail communications are member communications distributed or made available to more than 25 retail investors within a 30-calendar-day periodcorrect
Why D is correct

At a high level, retail communications are member communications distributed or made available to more than 25 retail investors within a 30-calendar-day period.

compliance judgment · easy · apply

A registered representative emails the same individually drafted account-review letter to 18 of her retail clients over a two-week span and sends nothing else to the public that month. How is this communication categorized?

  1. AInstitutional communication, because the clients have accounts
  2. BA public appearance subject to filing
  3. CRetail communication, because it was sent electronically
  4. DCorrespondence, because it reached 25 or fewer retail investors in 30 dayscorrect
Why D is correct

Eighteen retail recipients within a 30-day window is 25 or fewer, so the message is correspondence rather than a retail communication. The electronic format alone does not change the category.

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FAQ

Communications with the Public and General Best Interest Obligations and Suitability Requirements questions

What makes something correspondence rather than a retail communication?

The audience size: written or electronic communications to 25 or fewer retail investors within any 30 calendar-day period are correspondence.

What is Regulation Best Interest?

The SEC standard requiring a broker-dealer recommending a securities transaction to a retail customer to act in that customer’s best interest, without putting its own interests first.

Does a firm have to approve every communication before use?

No. Retail communications generally require principal approval before use; correspondence is subject to supervision and review rather than pre-approval.
Last reviewed 2026-08-28. Exam facts sourced to FINRA’s SIE exam page and the FINRA SIE content outline. Question counts describe the PrepScore bank, not the exam.
Same section
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