Lesson 7: Market Participants A: Definition and Differences between Stock Day Traders and Stockbrokers. Education Center / Day Trading / Intro Course / Lesson 7: Market Participants A: Definition and Differences between Stock Day Traders and Stockbrokers. Trial Part 1: Foundations of the Stock Market and Trading Lesson 7: Market Participants A: Definition and Differences between Stock Day Traders and Stockbrokers. Topic Materials 6 Participants in the stock market Previous Topic Check my progress Next Topic