Suitability (investing)

Suitability is a cornerstone obligation in the securities industry: before recommending a security or investment strategy, a registered representative must have a reasonable basis to believe the recommendation is appropriate for that specific customer. The standard is built on the customer's investment profile — age, financial situation, tax status, investment objectives, time horizon, liquidity needs, risk tolerance, and investment experience.

FINRA Rule 2111 breaks the obligation into three components. Reasonable-basis suitability requires the representative to understand the product well enough to believe it could be suitable for at least some investors. Customer-specific suitability requires matching the recommendation to the particular customer's profile. Quantitative suitability prohibits excessive trading in a customer's account — a series of transactions can be unsuitable in aggregate even if each trade looks reasonable alone, a violation known as churning.

In practice, suitability drives nearly every recommendation. A retiree seeking income and preservation of capital points toward high-quality bonds, not speculative options strategies; a young investor with a long horizon can generally accept more equity risk. Certain products — options, variable annuities, alternative investments — carry heightened suitability requirements because of their complexity and risk.

Suitability is tested heavily across the FINRA exam lineup. The Series 6 covers FINRA's suitability standards for investment company products, the Series 7 tests suitability for stocks, bonds, and options strategies, and the Series 66 applies suitability analysis to insurance products and alternative investments.