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The three components of suitability
FINRA Rule 2111 breaks suitability into three obligations, each of which has to be satisfied independently for a recommendation to meet the standard.
- Reasonable-basis suitability. The firm must have a reasonable basis to believe, through diligence, that the recommendation is suitable for at least some investors. This is a product-level determination — does the firm understand the security or strategy well enough to recommend it to anyone?
- Customer-specific suitability. The firm must have a reasonable basis to believe the recommendation is suitable for this particular customer, based on their investment profile (age, financial situation, tax status, objectives, experience, time horizon, liquidity needs, risk tolerance, and other relevant factors).
- Quantitative suitability. Where the firm has actual or de facto control over a customer account, it must have a reasonable basis to believe that a series of recommended transactions, viewed as a whole, is not excessive in light of the customer's profile.
Suitability vs. Reg BI vs. fiduciary duty
The three standards overlap but apply differently:
- Suitability applies to broker-dealer recommendations to non-retail customers, and to certain situations not covered by Reg BI. It asks: is this suitable?
- Reg BI applies to broker-dealer recommendations to retail customers. It asks: is this in the customer's best interest, and are conflicts adequately addressed?
- Fiduciary duty applies to investment advisers throughout the advisory relationship. It asks: is the adviser placing the client's interests above its own, with full disclosure of any conflicts?
For most retail recommendations made by broker-dealers, Reg BI now sits where suitability used to. But suitability remains the operative standard for institutional customers and continues to inform how reasonable-basis diligence is conducted.
Documentation that supports suitability
Suitability is harder to defend than to assert. The pattern that holds up under examination is consistent:
- A current customer profile that captures the relevant suitability factors.
- Product-level diligence files that demonstrate reasonable-basis review.
- Recommendation records that show the link between the customer profile and the specific recommendation.
- Supervisory review evidence — particularly for complex or higher-risk recommendations.
When any of those components is missing, the suitability conclusion becomes much harder to defend years later, when the customer profile, the market conditions, and the firm's understanding of the product have all moved on.
How StratiFi thinks about suitability
The most reliable way to maintain suitability over time is to capture the reasoning at the moment of the recommendation, in a structure that connects to the customer profile and to product-level diligence. Done well, this produces an answer to the suitability question that is the same answer the firm would give in real time and the answer it would give to an examiner three years later.
Frequently asked questions
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Is suitability still relevant after Reg BI?
Yes. Reg BI replaced the suitability standard for broker-dealer recommendations to retail customers, but suitability still governs recommendations to non-retail customers and continues to inform reasonable-basis product diligence under Reg BI. -
How is "investment profile" defined?
FINRA Rule 2111 lists the components of the customer's investment profile: age, other investments, financial situation and needs, tax status, investment objectives, investment experience, investment time horizon, liquidity needs, risk tolerance, and any other information disclosed by the customer in connection with the recommendation. -
Can a customer override suitability concerns by waiver?
No. A customer's instruction to make a particular trade does not relieve the firm of its suitability obligation when the firm makes a recommendation. The standard applies to recommendations, not to unsolicited customer-directed trades.