SECURITIES LITIGATION | 2026-09-30

Section 18 of the Exchange Act: Express Liability for False SEC Filings — and Why It’s Rarely Used

The Securities Exchange Act contains an express remedy for false statements in documents filed with the SEC. But its strict “actual reliance” requirement makes it far narrower than a Rule 10b-5 claim.

Most securities-fraud lawsuits are brought under Rule 10b-5, an implied private remedy. But the Securities Exchange Act also contains an express remedy for false statements in SEC filings: Section 18. It imposes liability on those who make or cause

Section 18 is the Exchange Act’s express remedy for false filings — potent on paper, narrow in practice.

What Section 18 Provides

Section 18 of the Securities Exchange Act creates express civil liability for any person who makes or causes to be made a statement in a document filed with the SEC (or a self-regulatory organization) that was, at the time and in light of the circumstances, false or misleading with respect to a material fact. A person who purchased or sold a security at a price affected by the false statement, in reliance on it, may recover damages. Because it is written into the statute, it is a direct remedy — unlike Rule 10b-5, which the courts implied.

The Catch: Actual (“Eyeball”) Reliance

The reason Section 18 is seldom used is its reliance requirement. The plaintiff must have actually read or known of the specific false statement in the filed document and relied on it in buying or selling — often called “eyeball” reliance. This is a demanding, individualized showing. Section 18 does not allow the fraud-on-the-market presumption of reliance that makes Rule 10b-5 class actions possible. A plaintiff who merely traded at a market price distorted by a false filing — but never actually read the filing — cannot satisfy Section 18.

Limited to Filed Documents

Section 18 reaches only statements in documents filed with the SEC (or an SRO) — such as registration statements, annual and quarterly reports, and other required filings. It does not reach statements made outside of filings, such as press releases, earnings calls, or other public communications that are not filed. This further narrows its scope compared with Rule 10b-5, which reaches misstatements broadly in connection with a securities transaction.

The Good-Faith Defense

Section 18 provides an important defense: a defendant is not liable if they can show they acted in good faith and had no knowledge that the statement was false or misleading. This good-faith defense contrasts with the plaintiff’s scienter burden under Rule 10b-5 (where the plaintiff must prove the defendant’s culpable state of mind). Under Section 18, once the false filing and reliance are shown, the burden effectively shifts to the defendant to establish good faith.

Why Plaintiffs Usually Choose Rule 10b-5

The practical comparison explains Section 18’s limited use:

Reliance. Rule 10b-5 allows the fraud-on-the-market presumption; Section 18 requires actual, individual reliance — a decisive difference in class actions.
Scope. Rule 10b-5 reaches misstatements broadly; Section 18 is limited to filed documents.
State of mind. Rule 10b-5 requires the plaintiff to prove scienter; Section 18 has a defendant good-faith defense, but its reliance hurdle usually outweighs that advantage.

Because most modern securities-fraud cases are class actions that depend on the fraud-on-the-market presumption, the actual-reliance requirement makes Section 18 impractical for them — so Rule 10b-5 dominates.

When Section 18 Can Still Matter

Section 18 retains a niche. In cases where a plaintiff can prove actual reliance on a specific filed statement — for example, a sophisticated investor who directly reviewed a company’s SEC filings before trading — Section 18 offers an express remedy with a favorable burden structure on state of mind. It can also be pleaded alongside Rule 10b-5 where the facts support actual reliance. Recognizing when the facts fit Section 18 can provide an additional, statutorily grounded avenue of recovery.

Why It Matters

For investors and companies, Section 18 illustrates a key feature of securities law: the express remedy for false filings is narrow, and the workhorse is the implied Rule 10b-5 action. Choosing the right theory — and understanding why the reliance rules differ — is central to both prosecuting and defending claims over false SEC filings.

Frequently Asked Questions

What is Section 18?

An express provision of the Securities Exchange Act imposing liability for false or misleading material statements in documents filed with the SEC.

Why is it rarely used?

Because it requires actual, individual (“eyeball”) reliance on the specific false statement and does not allow the fraud-on-the-market presumption.

What documents does it cover?

Only statements in documents filed with the SEC or an SRO — not press releases, calls, or other unfiled communications.

Is there a defense?

Yes — a defendant who acted in good faith and had no knowledge the statement was false or misleading is not liable.

How does it compare to Rule 10b-5?

Rule 10b-5 allows the fraud-on-the-market presumption and reaches misstatements broadly but requires scienter; Section 18 is narrower on reliance and scope but has a good-faith defense.

When is Section 18 useful?

When a plaintiff can prove actual reliance on a specific filed statement, such as an investor who directly reviewed the filings before trading.

Related Securities & Governance Guides

Talk to a Securities Attorney About a False Filing

If a false SEC filing affected your trade, Section 18 may provide an express remedy where you actually relied on it. Trembach Law Firm advises California investors and companies. Call (818) 514-7680.

Contact Trembach Law Firm at (818) 514-7680 for a confidential consultation.

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