Ernst & Ernst v. Hochfelder, 425 U.S. 185 (United States Supreme Court 1976), 96 S. Ct. 1375, 47 L. Ed. 2d 668
Ernst & Ernst v. Hochfelder is a cornerstone of federal securities fraud jurisprudence because it definitively established that liability for damages under §10(b) of the Securities Exchange Act of 1934 and SEC Rule 10b-5 requires scienter—intent to deceive, manipulate, or defraud.
Whether a private action for damages under §10(b) of the Securities Exchange Act of 1934 and SEC Rule 10b-5 can be predicated on negligence, or whether the plaintiff must plead and prove scienter—an intent to deceive, manipulate, or defraud.
A private damages action under §10(b) and Rule 10b-5 requires proof of scienter—intent to deceive, manipulate, or defraud. Negligence, without more, is insufficient to establish liability. SEC rules may not expand the scope of conduct proscribed by §10(b), whose terms—'manipulative or deceptive device or contrivance'—connote intentional misconduct. The Court assumed, without deciding, the existence of an implied private right of action under §10(b) and Rule 10b-5 and did not resolve whether recklessness satisfies the scienter requirement.
Negligence does not suffice for a private damages action under §10(b) and Rule 10b-5. Scienter—intentional or knowing misconduct—is required. The Court reversed the judgment of the Seventh Circuit.
Hochfelder is the seminal authority that a plaintiff seeking damages under §10(b) and Rule 10b-5 must plead and prove scienter. It sharply distinguished federal securities fraud from negligence-based malpractice, reshaped auditor and gatekeeper liability, and aligned private 10b-5 actions with intentional fraud concepts. In the wake of Hochfelder, most circuits have held that 'severe' or 'deliberate' recklessness can satisfy scienter, although the Supreme Court left that question open in this case. The decision also underpins modern pleading doctrine: the Private Securities Litigation Reform Act (PSLRA) and cases like Tellabs require plaintiffs to allege particularized facts giving rise to a strong inference of scienter. For students, Hochfelder illuminates statutory interpretation, the limits of agency rulemaking, and the care courts take with implied rights of action and the mental-state elements of fraud.