Series 24 · Supervision of Trading and Market Making Activities · Free Lesson

Market making and quoting: Nasdaq and OTC quotes, trading halts, prohibited trading, escalation

Free FINRA Series 24 (General Securities Principal) lesson in Supervision of Trading and Market Making Activities. 25 min read, ~3,694 words.

A market maker's quote is a promise to the market, and a halt or a manipulation can break that promise fast. This lesson covers how firms quote, when trading stops and what your surveillance must catch. Order handling is in the lesson before this one.

A market maker holds itself out as willing to buy and sell a security for its own account on a regular and continuous basis, publishing two-sided quotes. Quotation and Trading Obligations and Practices (FINRA Rule 5200 Series) keep market making and quoting activities honest:

If an order arrives while you are in the process of effecting a trade in that security and you communicate a revised quotation size immediately after that trade completes, you...

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Worked examples and practice. Free with a free account, no card.

Common mistakes

Bottom line

Exam shortcut

When a stem shows trading while holding information, name what was known: a coming block points to Rule 5270, an unpublished report to Rule 5280, issuer secrets to Rule 10b5-1. Translate outline numbers like 4613 to Equity 2 and answer on substance. For halts, read the clock first.

The full lesson (about 3,694 words, 25 min read) adds 2 worked examples, all 5 common mistakes, a self-check, free in the app.

Learning objectives

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