SIE · Knowledge of Capital Markets · Free Lesson

Market Structure and Economic Factors

Free FINRA SIE (Securities Industry Essentials) lesson in Knowledge of Capital Markets. 21 min read, ~3,088 words.

A client wants to know why her broker routed a NYSE-listed stock through a dark pool instead of "the exchange floor." Understanding the four markets, and how the Fed nudges them, separates candidates who memorize from candidates who pass.

The capital markets are organized into four functional layers. Each describes WHERE a trade happens and WHO participates, not what is being traded.

Primary market is where securities are issued for the first time. The issuer (corporation or government) sells directly to investors and receives the proceeds. IPOs, follow-on offerings, and new bond issuances all happen here. An underwriting syndicate stands between the issuer and the public.

Secondary market is where previously issued securities trade between investors. The issuer is not a party to the transaction and receives no proceeds. When you buy Apple shares from another investor through your broker, that is a secondary market trade. The NYSE and Nasdaq are the dominant venues.

Third market is exchange-listed securities trading off-exchange in the over-the-counter (OTC) market. A market maker can quote and execute trades in IBM (an NYSE-listed stock) without sending the order to...

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Common mistakes

Bottom line

Exam shortcut

If the question mentions "no broker-dealer" or "directly between institutions," the answer is fourth market. If it says "listed stock traded off-exchange," the answer is third market. When the Fed buys securities, it is easing (rates down). When it sells, it is tightening (rates up). Same direction logic for reserve requirements and the discount rate.

The full lesson (about 3,088 words, 21 min read) adds 2 worked examples, all 8 common mistakes, a self-check, free in the app.

Learning objectives

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