SIE (Securities Industry Essentials) Practice Exam 2026 - Free SIE Practice Questions and Study Guide

A market maker is a member of a stock exchange who is responsible for creating liquidity in a security by being willing to buy and sell at all times. This allows for smoother trading and higher liquidity in the market. A broker-dealer is a financial professional who executes trades for clients. An exchange officer is an employee of the stock exchange who enforces rules and regulations. A security analyst evaluates the financial performance of a company and makes investment recommendations, but is not responsible for providing liquidity. Therefore, the other options are incorrect as they do not accurately describe the role of a market maker on a stock exchange.