FREE Series 66 Study Guide 2026: A Complete, NASAA-Aligned Walkthrough

This free Series 66 study guide walks through every topic on the NASAA Uniform Combined State Law Examination, organized into the same four content areas NASAA uses to build the test.^[1]

It’s interactive, not a wall of text: every module is built around the high-yield facts, scenarios, and flashcards, so you learn by doing — not just reading.

Read it module by module, then round out your prep with our practice exam, flashcards. The Series 66 combines the Series 63 and Series 65 state-law content; pair it with the Series 7 to register as both an investment adviser representative and an agent.

Series 66 Exam Snapshot

The two largest areas — laws/regulations/ethics (45%) and client recommendations (30%) — make up roughly three-quarters of the exam, so the law and strategy sections carry the most weight. Budget your study accordingly:^[1]

Laws, Regulations & Ethics

This is the largest and most decisive section of the Series 66 — roughly 45 of the 100 scored questions — and post-exam score reports show it is where failing candidates most consistently lose points.^[1] Master it and you control the exam.

The content is built on the Uniform Securities Act (USA), the Investment Advisers Act of 1940, and NSMIA. The questions are rarely flat definitions — they are scenario 'best-answer' vignettes that swap actors and use double negatives to bait misapplication.^[5]

Your job here is to know exactly who is acting in what capacity, which standard applies, and which threshold or deadline attaches to each event. Decide the security and the person first, then the transaction, then the standard.

Defining the Players: IA, IAR, BD, and Agent

The single most-tested distinction on the exam is adviser-side versus broker-side. An investment adviser (IA) and a broker-dealer (BD) are firms; an investment adviser representative (IAR) and an agent are the natural persons who work for them.^[2]

You qualify as an IA only when all three prongs of the ABC test are met: you give Advice on securities, you are in the Business of doing so, and you receive Compensation. Drop any one prong and you are excluded.^[6]

Certain professionals are excluded under the LATE mnemonic — Lawyers, Accountants, Teachers, and Engineers — but only while the advice is incidental and not separately compensated. The exclusion vanishes the moment they charge a fee for the advice itself.^[6]

Capacity drives the standard. An IA/IAR owes a fiduciary duty of full and fair disclosure, while a BD/agent is held to suitability and the SEC's Regulation Best Interest (Reg BI), a best-interest standard that is not the same as fiduciary duty.^[3]

Registration Thresholds: State vs. Federal-Covered Advisers

Under NSMIA, an adviser is regulated either by the SEC or by the states, never both for registration. Assets under management decide which.^[4] Memorize the buffer band as 90/100/110.

An adviser becomes SEC-eligible at $100M in AUM, must register with the SEC once it reaches $110M, and must drop back to state registration only if AUM falls below $90M. The $100M–$110M band is the adviser's own choice.^[1]

A federal-covered adviser still does something in-state: it files a notice filing and pays a fee. It does not escape the state entirely — a classic trap answer says it owes the state nothing.

The de minimis exemption excuses an IA or IAR from state registration if it has five or fewer retail clients in 12 months and no place of business in that state. It applies to advisers only — there is no de minimis for BDs or agents, where even one retail client triggers registration.^[1]

Securities, Issuers, and the Exempt Trap

A security is defined by the Howey test: an investment of money in a common enterprise with an expectation of profit from the efforts of others. This now reaches digital assets and crypto under the 2023 outline.^[7] Variable annuities and variable life are securities; fixed annuities and whole life are not.

The hardest concept in this whole section is exempt security versus exempt transaction. An exempt security is exempt because of what it is; an exempt transaction is exempt because of how, or by whom, it is sold. Decide the security first, then the transaction.^[1]

Equally trap-laden is exclusion versus exemption. An exclusion means the law's definition was never met (a LATE professional). An exemption means the definition was met but registration is released. Swapping these two terms is a frequent failure point.^[1]

Remember that exempt never means exempt from fraud. The Administrator's anti-fraud authority applies to every security and every transaction, registered or not.^[1]

Administrator Powers and Penalties

The state securities Administrator may deny, suspend, or revoke a registration, issue cease-and-desist orders without a prior hearing, and subpoena witnesses and records across state lines. A lack of experience alone is not grounds to deny — but lack of experience combined with other factors can be.^[1]

Know the timeline grid cold, because the exam interchanges the numbers. A registration by qualification becomes effective at noon of the 30th day after filing. A hearing must be granted within 15 days of a written request, and a final order may be appealed within 60 days.^[1]

Penalties split into criminal and civil. The USA criminal limit is a $5,000 fine and 3 years in prison, with a 5-year statute of limitations — the 5-5-3 mnemonic. Don't confuse the 3-year max sentence with the 5-year limitations period.^[1]

Civil liability runs to the sooner of three years from the sale/advice or two years from discovery. A rescission offer lets a violating firm offer to buy back the security plus interest; the client has 30 days to accept or the right lapses.^[1]

Fiduciary Duty, Disclosures, and the Brochure Rule

A fiduciary must put the client's interest first and must disclose and, where possible, eliminate conflicts of interest. Several adviser conflicts require specific consent.^[3]

A principal transaction (the IA trading from its own account with a client) requires written client consent on each individual trade. An agency cross transaction (the IA arranging both sides) may use a blanket, prospective consent with disclosure — don't let a stem use one blanket consent to cover principal trades.

soft dollars under Section 28(e) let an adviser use client brokerage to buy research and brokerage services that benefit clients, but not items like office furniture. custody triggers heightened rules, including using a qualified custodian and returning inadvertently-received client funds within three business days.^[3]

Under the brochure rule (Form ADV Part 2), the IA must deliver its brochure 48 hours before the contract, or at signing if the client gets a five-business-day penalty-free right to withdraw. Existing clients receive the updated brochure within 120 days of fiscal year-end.^[1]

Prohibited & Unethical Practices

NASAA's ethical standards are stricter than FINRA's, and the exam loves manipulation and conflict scenarios. Prohibited practices include churning (excessive trading for commissions), front-running (trading ahead of a client's known block order), selling away (private securities transactions outside the firm), market manipulation via wash trades or matched orders, and guaranteeing a client against loss.^[1]

Discretion is a frequent role-swap trap. An IA/IAR may act on oral or verbal discretionary authority for the first 10 business days while the written power of attorney is en route. An agent/BD may never trade on discretion until written authority is in hand.^[5]

Borrowing and sharing rules differ by actor. An agent may borrow from a client only if the client is in the lending business (a bank). An agent may share in a client's account only with written BD approval and proportional contribution; an IAR may never share in a client account.^[1]

The 2023 outline added the exploitation of vulnerable adults, IAR continuing education, business continuation and succession planning, and cybersecurity/data protection — newer topics older prep often under-covers.^[8]

Client Recommendations & Strategies

Client Investment Recommendations and Strategies is roughly 30% of the Series 66, the second-largest section behind Laws. This is where the exam tests whether you can match a real client to the right account, product, and strategy under realistic, judgment-call wording.

NASAA frames most of these items as scenario vignettes that ask for the appropriate or best answer, not a flat definition. Expect suitability traps (do not sell a 30-year bond to an 85-year-old), account-registration choices, and capital-market-theory concepts like CAPM and the EMH tested on their logic, not heavy math.^[5]

This guide teaches the high-yield content in the order NASAA outlines it: account types, the client profile, capital market theory and portfolio management, retirement and education plans, performance measurement, and taxation.^[9]

Account Types and Registration

The exam tests who owns the assets and what happens at death. JTWROS (joint tenants with right of survivorship) passes the deceased owner's share automatically to the survivor; TIC (tenants in common) passes the decedent's fractional share to their estate, not the co-owner.^[9]

TBE (tenancy by the entirety) is a spousal joint form requiring both spouses' consent to act. UTMA-UGMA custodial accounts are irrevocable gifts to a minor, managed by a custodian until the minor reaches the state age of majority; earnings can trigger the kiddie tax.^[5]

Fiduciary accounts (trusts, estates, guardianships) require the fiduciary to follow the prudent-investor standard and any governing document. A key recurring trap: TOD (transfer on death) registration is available only on individual and JTWROS accounts, naming beneficiaries who receive assets outside probate.

Client Profile and Suitability

Before any recommendation you must gather the client profile. Financial factors include income, net worth, tax bracket, and liquidity needs; non-financial factors include age, time horizon, risk-tolerance, dependents, and (added in 2023) ESG or religious screening preferences.^[2]

The three pillars of a profile are objectives, constraints, and risk tolerance. Common objectives: growth, income, preservation of capital, and speculation. Constraints include time horizon, liquidity, tax status, and legal or unique circumstances.^[5]

Suitability items are written as judgment calls with missing detail. The exam rewards matching product risk and liquidity to the client's horizon and tolerance, and flags unsuitable picks (illiquid or long-dated products for short-horizon or elderly clients).^[9]

Capital Market Theory: CAPM, MPT, and EMH

Modern-Portfolio-Theory holds that combining imperfectly correlated assets reduces portfolio risk; the efficient-frontier is the set of portfolios offering the highest expected return for each level of risk. Diversification removes unsystematic (company-specific) risk but not systematic (market) risk.^[5]

CAPM prices an asset's required return as compensation for systematic risk: $R = R_f + \beta (R_m - R_f)$, where $R_f$ is the risk-free rate and $R_m - R_f$ is the market risk premium. A $\beta$ above 1.0 means more volatile than the market. The exam tests the components and logic, not clean arithmetic.

The EMH (Efficient Market Hypothesis) has three forms and consistently confounds students. Weak form: prices reflect all past price data, so technical analysis fails. Semi-strong: prices reflect all public information, so fundamental analysis fails. Strong: prices reflect all public and non-public information.^[9]

Portfolio Management Strategies

Strategic-asset-allocation sets long-term target weights and periodically rebalances back to them; tactical allocation makes short-term shifts to exploit perceived opportunities. A contrarian buys what is out of favor.^[5]

Dollar-cost-averaging invests a fixed dollar amount on a schedule, buying more shares when prices are low and fewer when high, lowering average cost per share over time. Active management seeks to beat a benchmark; passive (indexing) seeks to match one at lower cost.

Risk metrics are common distractors. Standard deviation measures total risk and feeds the Sharpe-ratio; beta measures systematic risk and feeds the Treynor ratio. Duration measures a bond's interest-rate sensitivity and is not the same as maturity.

Retirement and Education Plans

Traditional IRA contributions may be deductible and grow tax-deferred; withdrawals are taxed as ordinary income, with RMDs beginning at age 73 under SECURE Act 2.0. Roth IRA contributions are after-tax, grow tax-free, have no lifetime RMDs for the owner, and qualified withdrawals are tax-free.^[10]

Employer plans split into defined-benefit (employer bears investment risk, promises a benefit) and defined-contribution (employee bears risk: 401(k), 403(b) for nonprofits, 457 for government). ERISA governs private plans, requiring an investment policy, vesting schedules, and 404(c) participant-direction protection.^[11]

Education and savings vehicles: a 529-plan offers high contribution limits and tax-free growth for qualified education expenses; Coverdell ESAs cap near $2,000 per year with an age-30 use rule; HSAs pair with high-deductible health plans for triple-tax-advantaged medical savings.

Performance Measurement and Taxation

Returns the exam tests: total return (income plus capital appreciation), holding-period-return, annualized return, real return (nominal minus inflation), and after-tax return. Time-weighted return judges the manager (ignores client cash flows); dollar-weighted (IRR) reflects the client's actual experience including deposits and withdrawals.^[9]

Capital gains are long-term if the asset is held more than one year (preferential rates) and short-term if held one year or less (ordinary rates). Net capital losses offset gains, then up to $3,000 of ordinary income per year, with the remainder carried forward. The wash-sale rule disallows a loss if a substantially identical security is repurchased within 30 days before or after the sale.^[12]

Cost basis rules are a high-miss area: gifted securities take the donor's carryover basis, while inherited securities receive a stepped-up-basis to fair market value at death. Higher Medicare premiums driven by income (IRMAA) also surface in distribution-planning items.^[10]

Investment Vehicle Characteristics

This section is roughly 17 of the 100 scored questions on the Series 66, and post-exam score reports flag it — especially the insurance and annuity sub-bucket — as a quiet failure point even for candidates who pass Laws.^[1] The questions are product-identification and fact-pattern items, not pure math.

You must know what each vehicle IS, how it is priced, how it is taxed, and one make-or-break trait: whether it is a security. The 2023 outline added ADRs, preferred-stock types, money-market instruments, employee stock options, SPACs, non-traded REITs, and digital assets, while removing viatical settlements and investment real estate.^[16]

Lead with the bright line the exam tests over and over: variable annuity and variable life products are securities; fixed annuity and whole life are not. Decide that first, then layer on pricing and tax treatment.^[13]

Equity Securities and Analysis

Common stock carries voting rights and the largest growth potential but sits last in a liquidation. Preferred stock pays a fixed dividend, has priority over common, and behaves like a hybrid — its price moves inversely with interest rates, much like a bond.^[14]

Know the preferred varieties the 2023 outline added: cumulative (missed dividends accrue), participating (shares in extra profits), convertible (swaps into common), and callable.^[16] Rights are short-term and let existing holders keep their proportional ownership; warrants are long-term sweeteners with a strike above the current price.

An ADR is a receipt for shares of a foreign company that trades in U.S. dollars, exposing the holder to currency risk. Employee stock options split into ISOs (qualifying, AMT exposure) and NQSOs (ordinary income at exercise).^[16]

For analysis, separate fundamental analysis (financial statements, ratios, dividend-discount and dividend-growth models of intrinsic value) from technical analysis (price and volume charts, trends, support/resistance). The exam pairs each tool with the right analyst.^[14]

Fixed-Income Valuation: Yields and Duration

Bond prices and yields move inversely. Memorize the yield ladder: for a bond trading at a premium, nominal yield > current yield > yield to maturity > yield to call; for a discount bond the order reverses, and at par all four are equal.^[17]

Current yield is the only one you are likely to compute: annual coupon divided by current market price. YTM and YTC fold in the gain or loss to par or call, so they are tested by their ranking, not full calculation.^[1]

Duration measures a bond's price sensitivity to interest-rate changes — not its time to maturity. Longer maturity and lower coupon both raise duration, making the bond more rate-sensitive; convexity refines that estimate for large rate moves.^[17]

This is a high-recall area: candidates repeatedly report questions on duration, yield ranking, and how a rate change hits bonds of different maturities.^[2]

Pooled Investment Vehicles

An open-end fund (mutual fund) continuously issues redeemable shares priced at NAV once daily; the public pays the POP, which equals NAV plus any front-end sales charge. A closed-end fund issues a fixed share count that then trades on an exchange at a market price that can sit above or below NAV.^[14]

Mutual-fund share classes are tested by their fee profile: Class A charges a front-end load (reduced by breakpoints, a letter of intent, or rights of accumulation); Class B carries a back-end contingent deferred sales charge that declines over time; Class C has a level 12b-1 fee and suits short horizons.^[14]

A UIT holds a fixed, unmanaged portfolio with a set termination date. An ETF tracks an index and trades intraday; an ETN is an unsecured debt note that adds issuer credit risk on top of index risk.^[15]

A REIT must distribute at least 90% of its taxable income to keep its pass-through tax status; dividends are generally taxed as ordinary income, not qualified. The 2023 outline added non-traded (non-liquid) REITs and leveraged/inverse ETFs, which reset daily and are unsuitable as long-term holds.^[16]

Alternative and Derivative Products

Hedge funds use the 2-and-20 fee model (2% of assets plus 20% of profits, often above a hurdle rate), impose lock-up periods, and stay private by qualifying under Section 3(c)(1) (up to 100 investors) or 3(c)(7) (qualified purchasers).^[15]

A DPP (direct participation program) passes income, gains, and losses straight to investors, who are taxed individually; liquidity is poor. Structured products package a bond with a derivative, adding issuer credit risk.^[15]

A SPAC (blank-check or blind-pool company) raises cash through an IPO to acquire an unidentified target later — a 2023 addition. Venture-capital managers earn carried interest, a profit share taxed favorably.^[16]

Derivatives appear lightly. A futures contract obligates both parties to transact at a set price and date, unlike an option, which grants a right; treat options as low-yield but high-variance on the Series 66.^[1]

Insurance-Based Products and Annuities

This is the most-missed cluster in the whole section, so over-study it.^[1] During the pay-in (accumulation) phase a variable annuity buys accumulation units; at payout the holder converts to a fixed number of annuity units whose dollar value floats with separate-account performance relative to the AIR (assumed interest rate).

Annuity earnings grow tax-deferred and come out LIFO — gains first, taxed as ordinary income, with a 10% penalty before age 59½. A 1035 exchange lets a holder swap one annuity or life policy for another with no current tax.^[13]

Once annuitized, only the earnings portion of each check is taxable; the exclusion ratio determines the tax-free return of the original cost basis. An indexed annuity credits a floor (e.g., a guaranteed minimum) plus a share of an index's gain — it is a fixed product, not a security, and needs no securities license.^[13]

Life insurance parallels this: term is pure protection; whole life has fixed cash value; universal life is flexible-premium; variable life invests cash value in a separate account and IS a security.^[13]

The Security vs. Non-Security Line

Whether a product is a security drives the license needed to sell it, the disclosure owed, and the Administrator's reach. The dividing rule is investment risk: if the client bears market risk in a separate account, it is a security.^[13]

Securities include common and preferred stock, bonds, mutual funds, ETFs/ETNs, REITs, variable annuities, and variable life. Per the 2023 outline, digital assets and crypto can be securities under the Howey analysis.^[7]

Non-securities include fixed annuities, indexed (equity-indexed) annuities, whole and term life insurance, and bank CDs — the insurer or bank bears the investment risk, so no securities registration attaches.^[13]

A classic trap labels a fixed or indexed annuity a security, or assumes every REIT trades on an exchange. Slow down and classify the product before answering.^[1]

Economic Factors & Business Information

This is the smallest section of the Series 66 — roughly 8 of the 100 scored questions — but anxious candidates over-study the math here while neglecting the 45% Laws section.^[1] Learn it efficiently and move on.

The reassuring truth from recent test-takers: the Series 66 is conceptual, not computational. You are asked which formula applies and what its inputs and outputs mean far more often than you are asked to crunch numbers.^[21]

This section covers time value of money, descriptive statistics, the risk taxonomy, financial-statement and valuation ratios, and the macro backdrop of the business cycle, monetary policy, and fiscal policy. We teach the concept behind each so the wording cannot trip you.

Time Value of Money: PV, FV, NPV, and IRR

Money has time value — a dollar today is worth more than a dollar tomorrow because it can be invested. present value (PV) and future value (FV) move a single sum across time at an interest (discount) rate.^[1]

The Rule of 72 is the one TVM calculation you should expect to actually perform: divide 72 by the annual rate to estimate the years for money to double. At 8%, money doubles in about 9 years.^[21]

net present value (NPV) discounts all of an investment's future cash flows back to today and subtracts the cost; a positive NPV means the investment adds value. internal rate of return (IRR) is the discount rate that makes NPV equal zero — the project's own implied yield.^[1]

The decision rule is the high-yield part: accept a project when IRR exceeds your required return (the hurdle rate), or equivalently when NPV is positive. NPV and IRR are tested on logic, not arithmetic.^[21]

Descriptive Statistics and Correlation

Three measures of central tendency recur: the mean (average), the median (middle value), and the mode (most frequent value). The geometric mean is the correct average for compounded returns over multiple periods and is always lower than the simple arithmetic mean.^[1]

Dispersion measures how spread out the data is. The range is simply the highest minus the lowest value, while standard deviation measures how far returns typically stray from the mean — the workhorse gauge of an asset's total volatility.^[1]

The correlation coefficient quantifies how two assets move together on a scale from $-1$ to $+1$. A $+1$ means they move in perfect lockstep, $-1$ means perfectly opposite, and $0$ means no linear relationship at all.^[1]

The classic trap: reading a correlation of $0$ as inverse. Zero is no relationship; only $-1$ is perfect inverse. Diversification benefit grows as correlation falls toward and below zero.^[1]

The Risk Taxonomy: Systematic vs. Unsystematic

Total risk splits into two families. systematic risk is market-wide and cannot be diversified away; unsystematic risk is firm- or industry-specific and can be reduced through diversification.^[1]

Systematic risks include market risk, interest-rate risk, and purchasing-power risk (inflation). These hit the whole market, so spreading across more stocks does not remove them.^[1]

Unsystematic risks include business risk, credit risk (default), liquidity risk, and political/regulatory risk. Because they are specific, holding a broad portfolio washes them out.^[1]

The exam links this to measurement: standard deviation captures total risk and is used for a single or undiversified holding, while beta captures only systematic risk and is meaningful for a diversified portfolio.^[18]

Financial-Statement and Valuation Ratios

Liquidity ratios come straight from the balance sheet. The current ratio is current assets divided by current liabilities; the quick ratio (acid-test) strips out inventory — the slowest asset to convert to cash.^[1]

The quick/acid-test ratio is repeatedly named the single calculation most likely to actually appear, so know that it equals current assets minus inventory, all over current liabilities.^[21] working capital is simply current assets minus current liabilities.

debt-to-equity gauges leverage, and book value per share is net tangible assets divided by shares outstanding. Income-statement metrics include earnings per share (EPS), dividend yield, and the dividend payout ratio.^[1]

Valuation multiples compare price to fundamentals: the price-to-earnings (P/E) ratio, price-to-sales, and price-to-book. A high P/E signals growth expectations; the exam tests what each ratio means more than its exact computation.^[1]

Business Cycle, Indicators, and Inflation

The economy moves through a business cycle of four phases: expansion, peak, contraction (a recession is two consecutive quarters of falling GDP), and trough, before recovering.^[23]

Economic indicators are grouped by timing relative to the cycle. leading indicators (stock prices, building permits, new orders) turn before the economy; coincident indicators (GDP, employment) turn with it; lagging indicators (corporate profits, average duration of unemployment) turn after.^[23]

inflation erodes purchasing power. The real return is roughly the nominal return minus the inflation rate, so an investment earning 5% in 3% inflation delivers only about 2% in real terms.^[1]

Know the headline gauges: the Consumer Price Index (CPI) measures consumer inflation, and Gross Domestic Product (GDP) measures total output. These framing terms appear inside conceptual questions rather than as standalone calculations.^[23]

Monetary vs. Fiscal Policy

Two levers steer the economy, and the exam wants you to know who pulls which. monetary policy is run by the Federal Reserve and controls the money supply and short-term interest rates.^[22]

The Fed's three tools are open-market operations (buying or selling Treasuries — its primary day-to-day tool), the discount rate it charges banks, and reserve requirements. Buying securities and cutting rates is easing; selling and raising rates is tightening.^[22]

fiscal policy is run by Congress and the President through government spending and taxation. Cutting taxes or raising spending stimulates; raising taxes or cutting spending restrains.^[23]

A frequent trap swaps the actor: a question about changing tax rates is fiscal (Congress), not monetary (the Fed). Tie the tool to its owner before answering.^[22]

How to Use This Study Guide

A study guide is a map, not the whole territory — use it alongside your prep provider’s materials and our practice tools, not on its own:

Series 66 Glossary

Quick definitions for the terms you’ll see most on the Series 66 exam:

1035 exchange

A tax-free swap of one annuity or life insurance policy for another under IRC Section 1035.

12b-1 fee

An annual asset-based fee for distribution and marketing; prominent in level-load Class C shares.

529-plan

A state-sponsored education savings plan with high contribution limits and tax-free growth when used for qualified education expenses.

ABC test

The three-prong test for IA status: Advice on securities, in the Business of advising, for Compensation; all three required.

account-registration

How an account is titled (individual, joint, custodial, fiduciary), which determines ownership, control, and what happens to assets at death.

accumulation unit

The measure of a variable annuity owner's interest during the pay-in (accumulation) phase.

Administrator

The state official (or agency) charged with administering and enforcing that state's securities law.

ADR

American Depositary Receipt; a U.S.-dollar receipt representing shares of a foreign company, carrying currency risk.

agency cross transaction

An adviser acting as broker for both sides of a trade; permissible with disclosure and blanket prospective consent.

agent

A natural person who represents a broker-dealer (or issuer) in effecting securities transactions; defined by function, not title.

AIR

Assumed interest rate; the benchmark return for a variable annuity payout — beating it raises the check, lagging it lowers it.

annuity unit

A fixed number of units established at annuitization whose dollar value floats with separate-account returns.

anti-fraud authority

The Administrator's power to pursue fraud on any security or transaction, even exempt ones; exempt never means exempt from fraud.

beta

A measure of a security's or portfolio's systematic (market) risk; a beta above 1.0 indicates greater volatility than the overall market.

book value per share

Net tangible assets (assets minus liabilities and intangibles) divided by shares outstanding.

breakpoint

An investment threshold at which a Class A fund's front-end sales charge is reduced.

brochure rule

Form ADV Part 2 delivery rule: give the brochure 48 hours before contract, or at signing with a 5-business-day right to withdraw.

broker-dealer

A firm in the business of effecting securities transactions for its own account or for others' accounts.

business cycle

The recurring sequence of expansion, peak, contraction, and trough in overall economic activity.

business risk

Unsystematic risk tied to a specific company's operations and management decisions.

CAPM

Capital Asset Pricing Model. $\text{Required return} = R_f + \beta \times (R_m - R_f)$; prices an asset for its systematic (non-diversifiable) risk.

carried interest

A venture-capital or fund manager's share of profits, generally taxed at favorable capital-gains rates.

churning

Excessive trading in a client's account primarily to generate commissions; a prohibited practice.

closed-end fund

A fund with a fixed share count that trades on an exchange at a market price that may differ from NAV.

coincident indicators

Economic measures that move with the economy, such as GDP and employment.

contingent deferred sales charge

A back-end load on Class B shares that declines to zero the longer the shares are held.

contrarian

An investment style that buys out-of-favor assets and sells popular ones, betting against prevailing market sentiment.

convexity

The curvature in the price-yield relationship that refines duration's estimate for large interest-rate moves.

correlation

A number from $-1$ to $+1$ showing how two assets move together: $+1$ lockstep, $-1$ opposite, 0 no relationship.

cpi

The CPI, the most-watched gauge of consumer price inflation; also a lagging indicator.

credit risk

Unsystematic risk that an issuer will default on interest or principal; also called default risk.

current ratio

Current assets divided by current liabilities; a measure of a firm's short-term liquidity.

current yield

Annual coupon divided by the bond's current market price; the yield most likely actually computed on the exam.

custody

Holding or having access to client funds or securities; triggers qualified-custodian, surprise-exam, and notification rules.

de minimis exemption

Exemption from state registration for an IA/IAR with five or fewer retail clients in 12 months and no place of business in the state; not available to BDs/agents.

de-ratio

Total debt divided by shareholders' equity; a measure of financial leverage.

discount rate

The interest rate the Federal Reserve charges member banks for short-term loans.

dividend payout ratio

The portion of earnings paid out as dividends, equal to dividends divided by net income (or per share).

dividend yield

Annual dividends per share divided by the share's market price; the income return on a stock.

DPP

Direct participation program; a pass-through vehicle whose income, gains, and losses flow to investors individually; illiquid.

duration

A measure of a bond's price sensitivity to interest-rate changes; rises with longer maturity and lower coupon.

efficient-frontier

The set of portfolios offering the maximum expected return for each level of risk under Modern Portfolio Theory.

EMH

Efficient Market Hypothesis. Theory that asset prices reflect available information; tested in weak (past prices), semi-strong (all public info), and strong (public plus non-public) forms.

eps

Net income minus preferred dividends, divided by common shares outstanding; per-share profitability.

ERISA

The Employee Retirement Income Security Act, which governs private-sector employer retirement plans, including vesting, fiduciary, and 404(c) participant-direction rules.

ETF

Exchange-traded fund; an index-tracking fund whose shares trade intraday on an exchange.

ETN

Exchange-traded note; an unsecured debt instrument tied to an index, adding issuer credit risk.

exclusion

A status where the legal definition was never met, so the law never applied to the person at all.

exclusion ratio

The portion of each annuity payment that is a tax-free return of the original cost basis.

exempt security

A security exempt from registration because of what it is (e.g., US government, municipal, bank issues).

exempt transaction

A transaction exempt from registration because of how or by whom it is conducted (e.g., isolated non-issuer or fiduciary sales).

exemption

A status where the definition WAS met but the person is released from the registration requirement.

exploitation of vulnerable adults

Financial abuse of senior or impaired clients; a 2023-added topic with reporting and account-hold provisions.

Federal Reserve

The central bank of the United States, which conducts monetary policy through its three tools.

federal-covered adviser

An adviser registered with the SEC (generally $100M+ AUM) over which states keep only anti-fraud and notice-filing authority.

fiduciary duty

The obligation to act in the client's best interest with full and fair disclosure of all material conflicts; the IA/IAR standard.

fiscal policy

Government spending and taxation decisions made by Congress and the President to influence the economy.

fixed annuity

An annuity paying a guaranteed rate where the insurer bears investment risk; it is NOT a security.

front-running

Trading for one's own account ahead of a client's known large order to profit from the expected price move; prohibited.

fundamental analysis

Valuing a security from financial statements, ratios, and dividend models to estimate intrinsic value.

futures

A standardized contract obligating both parties to buy or sell an asset at a set price and future date.

fv

The amount a current sum will grow to by a future date when compounded at an assumed rate.

gdp

GDP, the total value of goods and services produced in an economy; a coincident measure of output.

geometric mean

The compounded average return over multiple periods; always less than or equal to the arithmetic mean and correct for multi-period returns.

holding-period-return

Total return earned on an investment over the entire time it is held, combining income and price change.

Howey test

The four-part test for a security: investment of money in a common enterprise with expectation of profit from the efforts of others.

hurdle rate

A minimum return a hedge-fund manager must beat before earning the performance (incentive) fee.

indexed annuity

A fixed annuity crediting a guaranteed floor plus a share of an index's gain; it is NOT a security.

inflation

A sustained rise in the general price level that erodes the purchasing power of money.

inflation-risk

The systematic risk that inflation will erode the real value of investment returns; also called inflation risk.

interest-rate risk

The systematic risk that rising interest rates will lower the prices of existing fixed-income securities.

investment adviser

A firm that, for compensation and as a business, advises others on securities; an IA owes clients a fiduciary duty.

investment adviser representative

A natural person who works for an IA giving advice, managing accounts, or supervising those who do; registers via Form U4.

Investment Advisers Act of 1940

The federal statute governing investment advisers; sets the SEC-registration regime and the federal fiduciary framework.

irr

The discount rate at which an investment's NPV equals zero; the project's own implied annual yield.

JTWROS

Joint tenants with right of survivorship; a deceased owner's share passes automatically to the surviving owner(s), bypassing probate.

lagging indicators

Economic measures that change after the economy does, such as corporate profits and the prime rate.

LATE

IA exclusion mnemonic — Lawyers, Accountants, Teachers, Engineers — excluded only when advice is incidental and not separately compensated.

leading indicators

Economic measures that change before the economy does, such as stock prices and building permits.

letter of intent

A nonbinding pledge to invest enough within 13 months to earn a breakpoint discount.

LIFO

Last-in, first-out; annuity withdrawals draw taxable earnings out first as ordinary income.

liquidity risk

The unsystematic risk that an asset cannot be sold quickly without a significant price concession.

lock-up

A period during which hedge-fund investors cannot redeem their capital.

market risk

The systematic risk that overall market movements will reduce an investment's value.

mean

The simple arithmetic average of a data set: sum of values divided by the count.

median

The middle value of a data set when the values are arranged in order.

mode

The value that occurs most frequently in a data set.

Modern-Portfolio-Theory

Framework showing that combining imperfectly correlated assets reduces overall portfolio risk for a given expected return.

monetary policy

Federal Reserve actions that control the money supply and short-term interest rates.

NAV

Net asset value; a fund's assets minus liabilities divided by shares outstanding, calculated once per day.

nominal yield

A bond's fixed coupon rate stated as a percentage of par; unchanged regardless of market price.

notice filing

A filing and fee a federal-covered adviser or covered security pays to a state in lieu of full state registration.

npv

The sum of an investment's discounted future cash flows minus its cost; a positive NPV means it adds value.

NSMIA

National Securities Markets Improvement Act of 1996; split adviser oversight between the SEC and states by AUM and created federal-covered securities.

open-end fund

A mutual fund that continuously issues redeemable shares priced once daily at NAV.

pe

Market price per share divided by earnings per share; a valuation multiple reflecting growth expectations.

person

Any legal entity or individual under the USA EXCEPT a deceased individual, a minor, or someone declared mentally incompetent.

POP

Public offering price; for a front-load mutual fund, NAV plus the sales charge.

principal transaction

An adviser trading with a client from the adviser's own account; requires written client consent on each trade.

prudent-investor

Standard requiring a fiduciary to manage assets with care, skill, and diversification judged at the portfolio level rather than security by security.

pv

The current worth of a future sum, found by discounting it back at an assumed interest (discount) rate.

qualified custodian

A bank, broker-dealer, or similar institution authorized to hold client assets when an adviser has custody.

quick ratio

The acid-test ratio: current assets minus inventory, divided by current liabilities; liquidity excluding slow-moving inventory.

range

A simple dispersion measure equal to the highest value minus the lowest value in a data set.

real return

The return after inflation, approximated as the nominal return minus the inflation rate.

Regulation Best Interest

SEC rule (Reg BI) requiring BDs to act in a retail customer's best interest at recommendation; a best-interest standard distinct from fiduciary duty.

REIT

Real estate investment trust; must distribute at least 90% of taxable income to keep pass-through tax status; can be traded or non-traded.

rescission

A violating firm's offer to buy back a security plus interest; the buyer generally has 30 days to accept before the right lapses.

reserve requirements

The fraction of deposits banks must hold in reserve; a Fed tool that affects how much banks can lend.

rights

Short-term instruments letting existing shareholders buy new shares at a discount to preserve proportional ownership.

rights of accumulation

A feature letting prior fund holdings count toward reaching a breakpoint on new purchases.

risk

The chance that an investment's actual return differs from its expected return; split into systematic and unsystematic types.

risk-tolerance

A client's willingness and ability to absorb investment losses; a core non-financial input to suitability and portfolio construction.

RMDs

Required minimum distributions; mandatory annual withdrawals from traditional retirement accounts beginning at age 73 under SECURE Act 2.0.

Rule of 72

A shortcut estimating the years to double an investment: divide 72 by the annual percentage rate of return.

security

An investment instrument meeting the Howey test; includes stocks, bonds, variable products, and (per 2023) digital assets, but not fixed annuities.

selling away

An agent effecting private securities transactions outside the supervision of their broker-dealer; prohibited.

Sharpe-ratio

A risk-adjusted return measure equal to $(\text{portfolio return} - \text{risk-free rate})$ divided by standard deviation (total risk).

soft dollars

Client brokerage commissions used under Section 28(e) to obtain research and brokerage services that benefit clients.

SPAC

Special-purpose acquisition (blank-check) company that raises IPO cash to acquire an unidentified target later; added to the 2023 outline.

statistics

Descriptive measures (central tendency and dispersion) used to summarize and compare investment data and returns.

stdev

A measure of how far returns typically deviate from the mean; the gauge of an asset's total volatility (total risk).

stepped-up-basis

Resetting an inherited asset's cost basis to its fair market value at the date of death, reducing future taxable gains for the heir.

suitability

The obligation to recommend only investments appropriate for a client's profile, objectives, risk tolerance, and constraints; on the Series 66 it is tested through scenario judgment calls.

systematic risk

Market-wide risk (rates, inflation, recession) that cannot be diversified away; measured by beta.

TBE

Tenancy by the entirety; a joint ownership form limited to spouses that requires both spouses' consent to transact or transfer.

technical analysis

Forecasting price from charts of past price and volume, trends, and support/resistance levels.

TIC

Tenants in common; each owner holds a divisible fractional interest that passes to their estate at death, not to the co-owner(s).

time value

The added worth money carries from its ability to earn interest over time; the basis for discounting and compounding.

TOD

Transfer on death registration; names beneficiaries who receive account assets outside probate, available only on individual and JTWROS accounts.

tvm

The principle that a dollar today is worth more than a dollar in the future because it can be invested to earn a return.

UIT

Unit investment trust; a fixed, unmanaged portfolio of securities with a set termination date.

Uniform Securities Act

The NASAA model state law (USA) that states adapt to register securities, advisers, broker-dealers, and their reps and to police fraud.

unsystematic risk

Firm- or industry-specific risk that can be reduced through diversification.

UTMA-UGMA

Uniform Transfers/Gifts to Minors Act custodial accounts; irrevocable gifts to a minor managed by a custodian until the state age of majority, subject to kiddie-tax rules.

variable annuity

An annuity whose value floats with a separate account; the client bears market risk, so it IS a security.

variable life

Life insurance whose cash value is invested in a separate account at the holder's risk; it is a security.

warrants

Long-term instruments giving the right to buy stock at a strike price set above the current market price; often an equity sweetener.

wash-sale

IRS rule disallowing a capital loss if a substantially identical security is bought within 30 days before or after the loss sale.

working capital

Current assets minus current liabilities; the cushion available to fund day-to-day operations.

yield to call

The annualized return if a callable bond is redeemed at its call date and price.

yield to maturity

The total annualized return if a bond is held to maturity, including the gain or loss to par.

Free Series 66 Study Materials & Resources

Everything you need to pass the Series 66 is free here — no paywall, no sign-up. This guide is the foundation; pair it with the rest of our free Series 66 study materials for active recall, timed practice, and last-minute review:

• Series 66 Practice Exam — full-length, timed, NASAA-style questions with explanations.
• Series 66 Flashcards — active-recall decks for the high-yield facts.

Series 66 Study Guide FAQ

References

1. 1.NASAA. “Series 66 Content Outline and Test Specifications.” NASAA. ↑
2. 2.FINRA. “Series 66 Equivalent — Uniform Combined State Law Examination.” FINRA. ↑
3. 3.U.S. Securities and Exchange Commission. “Regulation Best Interest (Reg BI).” U.S. Securities and Exchange Commission. ↑
4. 4.U.S. Securities and Exchange Commission. “Information About Registered Investment Advisers and Exempt Reporting Advisers.” U.S. Securities and Exchange Commission. ↑
5. 5.NASAA. “Investment Adviser Regulation Resources.” NASAA. ↑
6. 6.U.S. Securities and Exchange Commission. “The Definition of an Investment Adviser Under the Advisers Act.” U.S. Securities and Exchange Commission. ↑
7. 7.U.S. Securities and Exchange Commission. “Framework for Investment Contract Analysis of Digital Assets.” U.S. Securities and Exchange Commission. ↑
8. 8.NASAA. “Protecting Senior Investors and Vulnerable Adults.” NASAA. ↑
9. 9.NASAA. “Series 66 Content Outline (effective June 12, 2023).” NASAA. ↑
10. 10.Internal Revenue Service. “Retirement Topics - Required Minimum Distributions (RMDs).” Internal Revenue Service. ↑
11. 11.U.S. Department of Labor. “Employee Retirement Income Security Act (ERISA).” U.S. Department of Labor. ↑
12. 12.Internal Revenue Service. “Topic No. 409, Capital Gains and Losses.” Internal Revenue Service. ↑
13. 13.U.S. Securities and Exchange Commission. “Variable Annuities: What You Should Know.” U.S. Securities and Exchange Commission. ↑
14. 14.U.S. Securities and Exchange Commission. “Mutual Funds and ETFs: A Guide for Investors.” U.S. Securities and Exchange Commission. ↑
15. 15.U.S. Securities and Exchange Commission. “Exchange-Traded Funds (ETFs) and Exchange-Traded Notes (ETNs).” U.S. Securities and Exchange Commission. ↑
16. 16.NASAA. “NASAA Adopts Updated Series 65 and Series 66 Exam Content.” NASAA. ↑
17. 17.U.S. Securities and Exchange Commission. “Bonds: Interest Rate Risk and Yield.” U.S. Securities and Exchange Commission. ↑
18. 18.U.S. Securities and Exchange Commission (Investor.gov). “Beta and Modern Portfolio Theory — Investor Bulletin.” U.S. Securities and Exchange Commission (Investor.gov). ↑
19. 19.U.S. Securities and Exchange Commission. “Financial Statements — How to Read a 10-K and Financial Ratios.” U.S. Securities and Exchange Commission. ↑
20. 20.U.S. Securities and Exchange Commission (Investor.gov). “Diversification — Investor Bulletin.” U.S. Securities and Exchange Commission (Investor.gov). ↑
21. 21.U.S. Securities and Exchange Commission (Investor.gov). “Compound Interest and the Time Value of Money.” U.S. Securities and Exchange Commission (Investor.gov). ↑
22. 22.Board of Governors of the Federal Reserve System. “Monetary Policy: What Are Its Goals and How Does It Work?.” Board of Governors of the Federal Reserve System. ↑
23. 23.Federal Reserve Bank of St. Louis (FRED). “Business Cycle Dating and Economic Indicators.” Federal Reserve Bank of St. Louis (FRED). ↑

Sources for the concept answers

Every answer in the Series 66 concept questions above is drawn from an official primary source:

1. North American Securities Administrators Association (NASAA). “Exam Content Outlines — Uniform Securities Act framework.” NASAA, accessed 18 June 2026.
2. Internal Revenue Service. “Roth IRAs.” Internal Revenue Service, accessed 18 June 2026.

Career Employer

Career Employer is the ultimate resource to help you get started working the job of your dreams. We cover topics from general career information, career searching, exam preparation with free study materials, career interviewing, and becoming successful in your career of choice.

Follow Us:

All Posts