Chinese Wall Purpose

This question tests your understanding of how investment banks separate different business lines to protect confidential information and comply with securities regulations. You need to know the distinction between private-side teams, such as M&A and Capital Markets, and public-side teams, such as Equity Research and Sales and Trading, and why banks put controls in place to keep sensitive client information from spreading across those groups.

Interviewers ask this because information barriers are a core part of how banks manage conflicts of interest, protect material non-public information, and maintain market integrity. A strong answer shows that you understand not just the structure of the bank, but also the compliance and ethical reasons behind it.