Capital markets law is the body of federal regulation that governs how companies and governments raise money by selling securities, and how those securities trade afterward. In practice, it does three things: it forces issuers to disclose material information before and after they sell securities, it prohibits fraud and insider trading, and it gives the Securities and Exchange Commission the power to investigate and punish violations. Two Depression-era statutes, the Securities Act of 1933 and the Securities Exchange Act of 1934, form the backbone, and almost every rule in the field traces back to one of them.
The Two Statutes That Built the Framework
The Securities Act of 1933 regulates the initial sale of securities. Its central command is straightforward: before you sell securities through interstate commerce, you file a registration statement with the SEC, or you qualify for an exemption.1Office of the Law Revision Counsel. 15 USC 77e – Prohibitions Relating to Interstate Commerce and the Mails The premise is that investors buying newly issued securities deserve full disclosure of what they’re getting into before they hand over money.
The Securities Exchange Act of 1934 picks up from there. It governs the ongoing trading of securities after they reach the public, covering stock exchanges, broker-dealers, and the continuous reporting obligations of public companies. It also created the SEC and gave it broad authority to write rules, investigate wrongdoing, and bring enforcement actions. Section 10(b) of the 1934 Act is the most frequently invoked anti-fraud provision in securities regulation, making it unlawful to use any deceptive device in connection with buying or selling securities.2Office of the Law Revision Counsel. 15 US Code 78j – Manipulative and Deceptive Devices
The philosophy behind both laws is disclosure rather than merit review. The SEC does not tell investors which securities are good investments. It requires the seller to lay out the financial condition, business risks, and management background of what it’s selling, and it lets investors decide.
What Companies Must Disclose to Sell Securities
A registration statement has two main parts. Part I is the prospectus, the selling document every potential buyer must receive. It covers business operations, financial condition, risk factors, and management, along with audited financial statements. Part II contains additional information and exhibits filed with the SEC but not required to be delivered to investors.3Securities and Exchange Commission. What Is a Registration Statement
The SEC reviews these filings but does not approve them in any sense that vouches for the investment. It checks whether the disclosure is complete and clear. If it finds deficiencies, it can issue comments requiring revisions or stop the registration from becoming effective. Once the statement is effective, the securities can be sold legally.
The process is deliberately expensive. A full public offering involves lawyers, accountants, underwriters, and printing costs that can reach the millions. That cost is one reason exemptions exist.
Exemptions Most Offerings Actually Use
Most securities sold in the United States are sold under an exemption from full registration, not through a public offering. The exemptions try to balance investor protection against the reality that smaller and private deals can’t carry the cost of a full registration.
Regulation D
Regulation D is the most commonly used framework. Rule 506(b) permits unlimited capital raising without general advertising, sold to an unlimited number of accredited investors and up to 35 non-accredited investors in any 90-day period. Rule 506(c) lifts the ban on public solicitation but requires that every buyer be an accredited investor whose status the company has taken reasonable steps to verify. Rule 504 covers smaller offerings of up to $10 million in a 12-month period.4U.S. Securities and Exchange Commission. Exempt Offerings
An accredited investor is generally someone with income above $200,000 individually (or $300,000 with a spouse or partner) in each of the prior two years, or a net worth above $1 million excluding their primary residence. For entities, the threshold is generally $5 million in investments or assets.5U.S. Securities and Exchange Commission. Accredited Investors The idea is that wealthier investors can absorb losses and are more likely to have professional advice.
Regulation A+
Regulation A+ is sometimes described as a mini-IPO. Tier 1 allows offerings of up to $20 million in a 12-month period. Tier 2 allows up to $75 million.6U.S. Securities and Exchange Commission. Regulation A Both tiers admit non-accredited investors, but Tier 2 caps how much non-accredited individuals can invest at 10% of their income or net worth, and Tier 2 offerings require audited financials and ongoing reporting.
Regulation Crowdfunding
Regulation Crowdfunding lets a company raise up to $5 million in a 12-month period from ordinary investors through SEC-registered online platforms. Every transaction has to go through a registered intermediary, either a broker-dealer or a funding portal, and there are caps on how much non-accredited investors can put in across all crowdfunding offerings in a year.7U.S. Securities and Exchange Commission. Regulation Crowdfunding
What Public Companies Owe Investors on an Ongoing Basis
Going public is not a one-time disclosure event. Once a company has publicly traded securities, it enters a continuous reporting regime. Annual reports on Form 10-K and quarterly reports on Form 10-Q go to the SEC on schedule. When significant events occur between those filings, the company files a current report on Form 8-K, often within four business days.8U.S. Securities and Exchange Commission. Exchange Act Reporting and Registration
The Sarbanes-Oxley Act of 2002, passed after the Enron and WorldCom scandals, added another layer. The CEO and CFO must personally certify the accuracy of financial statements in every 10-K and 10-Q.8U.S. Securities and Exchange Commission. Exchange Act Reporting and Registration Section 404 requires management to assess the effectiveness of internal controls over financial reporting, and for larger companies an independent auditor must attest to that assessment. Those certifications carry criminal penalties for knowing violations.
Compliance costs run into the millions at large firms. The reporting cadence means the legal and accounting teams at a public company are working on SEC filings essentially year-round.
What the Law Prohibits
Insider Trading
Insider trading is buying or selling securities on material information the public doesn’t have. A corporate officer who sells shares before bad earnings are announced, or a lawyer who trades on confidential merger information, is breaking the law. The SEC has adopted rules aimed specifically at insiders trading opportunistically on nonpublic information.9Securities and Exchange Commission. Insider Trading Arrangements and Related Disclosures
Penalties are severe. Criminal prosecution for willful violations of the Exchange Act can produce fines up to $5 million and imprisonment up to 20 years for individuals. Entities face criminal fines up to $25 million.10GovInfo. 15 USC 78ff – Penalties On the civil side, the SEC can seek a penalty of up to three times the profit gained or loss avoided through the illegal trade.11Office of the Law Revision Counsel. 15 US Code 78u-1 – Civil Penalties for Insider Trading A controlling person who failed to prevent the violation can face a civil penalty of the greater of $1 million or three times the profit from the controlled person’s trades.
Manipulation and Fraud
Market manipulation covers schemes to artificially inflate or deflate prices or trading volumes. Wash trading, pump-and-dump schemes, and spoofing all fall inside it. Section 10(b) and the SEC’s Rule 10b-5 provide the primary prohibition against using any deceptive device in connection with buying or selling securities.2Office of the Law Revision Counsel. 15 US Code 78j – Manipulative and Deceptive Devices
Who Enforces Capital Markets Law
The SEC
The SEC is the primary federal regulator. Its Division of Enforcement investigates potential violations and brings cases either in federal court or through internal administrative proceedings.12U.S. Securities and Exchange Commission. Enforcement and Litigation In federal court, it can seek civil monetary penalties, injunctions against future violations, and disgorgement of illegal profits. Disgorged funds can be returned to harmed investors through Fair Funds created under Sarbanes-Oxley. Administrative proceedings can produce professional bars keeping someone from serving as an officer or director of a public company, license revocations, and fines. Most cases settle before trial, and the reputational damage from a public enforcement action is often worse than the money at stake.
The Whistleblower Program
Under a program created by Dodd-Frank, the SEC pays people who provide original information leading to successful enforcement actions. When the SEC collects more than $1 million in sanctions based on a tip, the whistleblower receives between 10% and 30% of the collected amount.13Securities and Exchange Commission. Whistleblower Program The financial incentive has turned corporate insiders into a steady source of cases.
FINRA
The Financial Industry Regulatory Authority oversees broker-dealers under authority delegated by the SEC. FINRA is a self-regulatory organization, not a government agency, but it writes and enforces rules for its member firms and the roughly 600,000 registered brokers who work for them.14FINRA. About FINRA It examines firms, investigates complaints, and can fine or bar individuals from the industry. It also runs the licensing exam system, including the Series 7 and Series 63.15FINRA. Entities We Regulate
Private Lawsuits
Capital markets law does not rely on government enforcement alone. Investors can sue on their own, and two paths are the most common.
Section 11 of the Securities Act lets anyone who purchased securities in a public offering sue if the registration statement contained a material misstatement or omission. Defendants can include the issuer, its officers and directors, the underwriters, and any accountant or lawyer who helped prepare the filing. Issuers face strict liability, so the investor need not prove intent to mislead, only that the registration statement was materially inaccurate.
For securities already trading on the secondary market, investors rely on Rule 10b-5 under the Exchange Act. Courts have read the rule to create a private right of action, though the requirements are more demanding: the investor must have bought or sold a security, must prove the defendant acted with intent to deceive, and must show a connection between the misstatement and the loss. Securities class actions are the visible face of this litigation. When a stock drops sharply after a company reveals news it should have disclosed earlier, plaintiff’s lawyers often file within days.
Where the Law Is Still Being Worked Out
Whether a cryptocurrency or digital token counts as a security depends on a test the Supreme Court set out in 1946. Under the Howey test, a transaction is an investment contract, and therefore a security, if it involves an investment of money in a common enterprise, with profits expected to come from the efforts of others.16Justia Law. SEC v. W.J. Howey Co., 328 US 293 The SEC has applied the test to many digital assets. Its framework treats the first prong as typically satisfied whenever a digital asset is bought for any form of value, dollars or another cryptocurrency, and the fights usually center on the third and fourth prongs: whether buyers reasonably expect profits from the efforts of a promoter or third party.17U.S. Securities and Exchange Commission. Framework for Investment Contract Analysis of Digital Assets If a digital asset passes the test, the full apparatus applies: the issuer needs to register or find an exemption, exchanges trading the asset need proper licensing, and the anti-fraud rules are fully enforceable. Litigation over which specific tokens qualify is ongoing.
Climate disclosure is another moving piece. The SEC finalized climate-related disclosure rules in 2024, then voted to withdraw its defense of those rules in litigation, leaving the future of mandatory environmental reporting by public companies uncertain.18U.S. Securities and Exchange Commission. SEC Votes to End Defense of Climate Disclosure Rules
What doesn’t change is the basic architecture. Mandatory disclosure, anti-fraud rules, and a regulator with real enforcement power. Whether the securities in question are shares of stock, municipal bonds, or tokenized assets on a blockchain, the same core principles apply. If someone is raising money from investors, capital markets law has something to say about how they do it.