In a scenario where a research head delays informing clients about a change from a bottom-up to a top-down research approach until inventory is depleted, which CFA Standard is most at risk of violation?

• A. Supervisory Responsibility
• B. Communication with Clients
• C. Diligence and Reasonable Basis
• D. Market Integrity

Answer: (B)

The main idea here is timely and clear communication to clients about material changes in how their investments are analyzed and managed. Shifting from a bottom-up to a top-down research approach is a significant change that can alter risk, potential returns, and the way portfolios are constructed. If that change isn’t disclosed until inventory is depleted, clients are kept in the dark about important implications that could affect their decisions and the transparency they rely on. That lack of timely information violates the standard that requires professionals to communicate material information to clients promptly and fully.

The other options don’t fit as well. Supervisory responsibility concerns ensuring policies are followed, but the issue here is the client-facing communication itself. Diligence and reasonable basis focuses on the soundness of research and recommendations, which isn’t the core issue when the problem is withholding information about a process change. Market integrity deals with market behavior and manipulation, not the client communication gap described.