Investment Management & Fiduciary Standards Expert Witness

Overview

About Investment Management & Fiduciary Standards Expert Witnesses

An investment management and fiduciary expert decides which standard governed the person who gave the advice or chose the investment, and whether the process behind that decision met it. The answer usually starts with the role. A broker, a registered investment adviser and a retirement plan fiduciary answer to three different standards, and the date of the conduct can change the standard again. This page covers conduct and process. Securities fraud, market manipulation and disclosure cases sit with a securities expert, and valuing a business is separate work.

Brokers: From Suitability to Best Interest

A broker-dealer making a recommendation to a retail customer must act in that customer's best interest at the time of the recommendation, without placing its own financial interest ahead of the customer's ¹. Regulation Best Interest breaks that into four parts: disclosure, care, conflict of interest and compliance ¹. The SEC set a compliance date of June 30, 2020 and said the rule enhances the standard beyond existing suitability obligations, including by expressly requiring consideration of cost ². Conduct before that date is generally read against the older suitability standard, so the expert must place each recommendation on the timeline.

The care obligation sets out what the file should show: an understanding of the risks, rewards and costs of the product, and a reasonable basis to believe the recommendation is in this customer's best interest given the customer's investment profile ¹. That profile includes age, other investments, financial situation, tax status, objectives, experience, time horizon, liquidity needs and risk tolerance ¹. The SEC also said it does not believe the rule creates any new private right of action ², so the expert should work from the claims actually pleaded.

Investment Advisers: A Fiduciary Duty Shaped by Scope

An adviser's duty comes from the Advisers Act as the SEC read it in its 2019 interpretation: a duty of care and a duty of loyalty, together an overarching obligation to act in the client's best interest ³. The adviser and client may shape the relationship by agreement, with full and fair disclosure and informed consent ³. So the advisory agreement and the adviser's disclosures come first. For retail clients, the SEC says high risk products such as penny stocks or thinly traded securities generally call for heightened scrutiny of fit with the client's risk tolerance and objectives ³. For institutions, the mandate shapes the inquiry ³.

Retirement Plans: Process, and a Rule That Changed in 2026

ERISA asks whether the fiduciary acted with care, skill, prudence and diligence, and the Supreme Court said in Hughes v. Northwestern (2022) that the inquiry is context specific and includes a continuing duty to monitor investments and remove imprudent ones ⁴. Courts must also give due regard to the range of reasonable judgments a fiduciary may make ⁴.

Three 2026 developments matter for any report written now:

• Who is a fiduciary. The 2024 Retirement Security Rule was vacated by Texas federal courts, and on March 20, 2026 the Labor Department published a notice replacing it in the CFR with the earlier five-part test ⁵. That test turns on advice given on a regular basis under a mutual understanding that it will serve as a primary basis for investment decisions ⁵
• Selecting plan investments. In March 2026 the Department proposed a process-based safe harbor for selecting designated investment alternatives, built on six factors: performance, fees, liquidity, valuation, benchmarks and complexity ⁶. A proposal is not a rule, so its status must be checked at the date of the report
• Benchmarks. The Supreme Court heard argument on October 6, 2026 in Anderson v. Intel, on whether a prudence claim needs a similar fund as a "meaningful benchmark" to get past the pleadings ⁷. The answer will shape how comparator opinions are built

The expert reads committee minutes, investment policy statements, consultant reports, fee disclosures and the comparator funds themselves.

Who Is Qualified

Match the expert to the seat. A broker conduct case calls for someone who supervised retail recommendations at a broker-dealer. An adviser case calls for portfolio management and compliance experience at a registered adviser. A plan case calls for someone who served on or advised investment committees. The CFA charter requires passing three exams and 4,000 hours of relevant work experience ⁸, and it is a strong signal of investment knowledge, but it does not by itself show supervisory or plan experience. A forensic economist or damages expert may compute the loss, and a securities expert addresses fraud and disclosure questions. The fiduciary expert addresses conduct, not the legal conclusion that a duty was breached.

Qualifications

Qualifications to Look For

• ✓Senior supervisory experience at a broker-dealer or registered investment adviser, matched to the role at issue
• ✓Service on or advising retirement plan investment committees for ERISA matters
• ✓Chartered Financial Analyst charter from CFA Institute where held
• ✓CFP certification where financial planning is at issue; CFP Board requires a CFP professional to act as a fiduciary when providing financial advice
• ✓Securities registrations held during the relevant period, such as Series 7, and a clean regulatory record
• ✓Working command of Regulation Best Interest, the SEC's 2019 adviser interpretation and ERISA section 404
• ✓Prior deposition, arbitration or trial testimony in investment conduct disputes

FAQ

Frequently Asked Questions