Series 63 / 65 / 66 Practice Test

How to Study for the Series 63, 65, and 66 Exams

Start with the Series 63, because it is the foundation of state securities regulation. It is built on the Uniform Securities Act, the model law that most states adopt for their own "blue-sky" statutes, and it focuses on registration: which people and firms must register, and which securities and transactions must be registered or are exempt. Learn the core definitions cold — a broker-dealer is a firm in the business of buying and selling securities, an agent is the individual who represents that firm to clients, and a "security" is defined very broadly (stocks, bonds, notes, investment contracts, and more). The exam tests when someone must register in a state, what triggers registration in that state (typically an office, or soliciting clients there), and the powers of the state Administrator to deny, suspend, or revoke a registration and to investigate wrongdoing.

The Series 65 shifts from selling securities to giving advice about them. It centers on investment advisers — firms in the business of advising others on securities for compensation — and investment adviser representatives, the individuals who work for them. A key distinction the exam hammers on is who registers where: under the National Securities Markets Improvement Act, larger advisers (generally those managing $100 million or more) register with the federal SEC, while smaller advisers register with the states, and understanding that dividing line is essential. Beyond registration, the Series 65 is heavy on substance you actually use as an adviser: economic and financial concepts, types of investments and their risks, portfolio and retirement planning, and how to build recommendations suitable for a specific client's goals, time horizon, and risk tolerance.

Ethics and fiduciary duty run through all three exams, and they are worth studying as their own theme because a large share of questions test them. Investment advisers owe clients a fiduciary duty — the highest standard, meaning they must put the client's interests first, disclose conflicts of interest, and avoid self-dealing. Watch for the classic prohibited practices: churning (excessive trading to generate commissions), unauthorized transactions, commingling client funds with the firm's own, front-running, and making untrue or misleading statements. Advisers must disclose their fees and any conflicts, keep required records, and follow rules on custody of client assets and on advertising and performance claims. On the exam, when a scenario pits the adviser's or agent's interest against the client's, the client almost always comes first — and full, clear disclosure is usually the correct answer.

Finally, understand how the three exams relate so you pick the right path and study efficiently. The Series 66 is essentially the Series 63 plus the Series 65 combined into one exam, so its content is the union of state-law registration rules and investment-adviser regulation and advice. Which you take depends on your role: someone who only sells securities for a broker-dealer typically needs the Series 63, while someone giving advice for a fee needs either the Series 65 on its own or the Series 66. One practical point that trips people up: the Series 66 must be paired with the SIE and Series 7, whereas the Series 65 can be taken without a securities license first — so the "right" exam often follows your job and your existing licenses. A smart way to study is to master the Series 63 registration rules and the shared ethics material first, since both carry into the 66, then layer on the Series 65 economics, products, and portfolio content.