Fiduciary Standard
The fiduciary standard requires investment advisers to act in the best interest of their clients, putting client interests ahead of their own. It is the highest standard of care in financial services.
Definition
Fiduciary Standard —
The fiduciary standard is the legal obligation imposed on registered investment advisers under the Investment Advisers Act of 1940 to act in the best interest of their clients at all times. It encompasses two core duties: the duty of loyalty (act in the client's interest, avoid conflicts of interest, and disclose unavoidable conflicts fully) and the duty of care (provide advice that is in the client's best interest based on a reasonable understanding of their circumstances). The fiduciary standard is continuous — it applies to the entire advisory relationship, not just individual transactions.
The two duties
Duty of loyalty
The duty of loyalty requires advisers to act in the client's best interest, not their own or a third party's. In practice this means:
- Avoiding conflicts of interest where possible
- Disclosing conflicts that cannot be avoided, fully and fairly
- Not using client information for the adviser's personal benefit
- Acting for the client's benefit in all investment decisions, not to maximize fees or commissions
Duty of care
The duty of care requires advisers to provide advice that is suitable for the specific client based on a reasonable understanding of their financial situation, goals, risk tolerance, and time horizon. This includes:
- Understanding the client's circumstances before making recommendations
- Monitoring the client's portfolio on an ongoing basis
- Providing advice that is reasonably based on the client's best interest, not just "not unsuitable"
Fiduciary standard vs. suitability vs. Reg BI
| Standard | Who it applies to | When it applies | Core test |
|---|---|---|---|
| Fiduciary (Advisers Act) | RIAs | Continuously | Best interest + loyalty |
| Reg BI (SEC) | Broker-dealers | At time of recommendation | Best interest |
| Suitability (legacy FINRA) | Broker-dealers (pre-Reg BI) | At time of recommendation | Suitable for the customer |
Fiduciary breaches
Common fiduciary breaches in enforcement actions include:
- Recommending investments with higher fees or commissions when equivalent lower-cost options were available without disclosure
- Failing to disclose conflicts of interest (undisclosed soft-dollar arrangements, referral fees, affiliated products)
- Churning accounts to generate commissions
- Using client information for personal trading (front-running)
- Recommending unsuitable concentrated positions without appropriate disclosure
The fiduciary standard and AI
An RIA using AI to assist with investment research does not lose or diminish its fiduciary obligations. The duty of care requires that AI-generated output be verified before being used as the basis for recommendations. The duty of loyalty requires that AI tools not introduce undisclosed conflicts of interest.
Related
This glossary entry is general information, not legal advice.
Keep reading
All glossary →RIA vs. Broker-Dealer: Key Differences
Registered investment advisers (RIAs) and broker-dealers are both regulated financial intermediaries, but they operate under different regulatory frameworks, compensation structures, and standards of care.
Reg BI (Regulation Best Interest)
Regulation Best Interest (Reg BI) is an SEC rule requiring broker-dealers to act in the best interest of retail customers when making investment recommendations. Effective June 30, 2020.
Books and Records (Investment Adviser)
The books and records rules require registered investment advisers and broker-dealers to maintain specific records for defined retention periods. SEC Rule 204-2 governs RIAs; Rule 17a-4 governs broker-dealers.