Central Bank of Denver, N.A. v. First Interstate Bank of Denver, N.A.
Does Section 10(b) of the Securities Exchange Act of 1934 create an implied private right of action against those who aid and abet a primary violator's securities fraud?
The Decision
5-4 decision · Opinion by Anthony M. Kennedy · 1994
Majority Opinion— Anthony M. Kennedyconcurring ↓dissent ↓
In a 5–4 decision authored by Justice Anthony M. Kennedy, the Supreme Court reversed the Tenth Circuit and held that there is no implied private right of action for aiding and abetting a violation of Section 10(b) of the Securities Exchange Act of 1934. The ruling eliminated a legal theory that had been widely used in securities fraud litigation for three decades.
The majority's reasoning began with the text of Section 10(b) itself. The statute makes it unlawful for 'any person' to 'use or employ' any 'manipulative or deceptive device or contrivance' in connection with the purchase or sale of securities. Justice Kennedy emphasized that this language targets only the person who actually commits the deceptive act — not someone who assists, encourages, or enables another person's fraud. Because the statute's prohibition is aimed at the direct perpetrator, the Court found no textual basis to extend it to secondary actors like aiders and abettors.
The majority then turned to a broader principle about implied causes of action. The private right of action under Section 10(b) was not created by Congress — it was judicially implied by courts over time. The Court explained that it had grown increasingly skeptical about expanding implied causes of action beyond their established boundaries. If the scope of conduct prohibited by Section 10(b) does not include aiding and abetting, then the implied right of action under the statute cannot reach aiding and abetting either. In other words, the private remedy cannot be broader than the underlying prohibition.
Justice Kennedy also rejected the argument that Congress had implicitly approved aiding and abetting liability through its silence. The majority noted that congressional inaction is a weak foundation for preserving judge-made rules, especially where the underlying cause of action was itself implied. The Court acknowledged that Congress could create aiding and abetting liability if it chose to, but concluded that courts should not do so on Congress's behalf. The decision effectively told plaintiffs that to hold secondary actors liable, they would need to show that those actors themselves met all the requirements for primary liability under Section 10(b) — that is, that they directly engaged in a deceptive act, rather than merely assisting someone else's deception.
The practical impact was sweeping. By eliminating aiding and abetting as a theory of private liability, the decision shielded lawyers, accountants, investment bankers, and other peripheral actors from a category of lawsuits that had been commonplace in securities litigation. The Court left open that such actors could still be liable if their own conduct independently satisfied the elements of a primary Section 10(b) violation.
Concurring Opinions
There were no separate concurring opinions filed in this case; all five justices in the majority joined Justice Kennedy's opinion without writing separately.
Dissenting Opinions
John Paul Stevensjoined by Harry A. Blackmun, David H. Souter, Ruth Bader Ginsburg
Justice Stevens argued that the majority was overturning decades of settled law and ignoring strong evidence that Congress had accepted and relied upon the aiding and abetting doctrine. He contended that the statutory text was broad enough to encompass aiding and abetting liability, consistent with traditional common-law principles that had long held secondary actors responsible for assisting wrongful conduct.
- Every federal circuit court had recognized aiding and abetting liability under Section 10(b) for approximately 30 years, and this near-universal consensus constituted settled law upon which Congress, courts, and market participants had relied.
- Congress had amended the securities laws numerous times since the lower courts established aiding and abetting liability and never moved to eliminate it, strongly suggesting legislative approval of the doctrine.
- The common law has long imposed liability on those who knowingly and substantially assist another's wrongful act, and this principle should naturally be incorporated into the interpretation of Section 10(b), which was enacted against this common-law backdrop.
- The majority's decision would create a roadmap for sophisticated fraudsters who could structure their schemes so that the most culpable behind-the-scenes actors — the professionals and gatekeepers — escape liability entirely by ensuring they are not technically the primary violators.
Background & Facts
This case arose from a bond deal gone bad in Colorado Springs. The Colorado Springs–Stetson Hills Public Building Authority issued $26 million in bonds in 1986 and 1988 to finance public improvements for a planned residential and commercial development. The bond covenants required that the land securing the bonds maintain an appraised value of at least 160% of the bonds' outstanding principal and interest. Central Bank of Denver, N.A. served as the indenture trustee — essentially a neutral party responsible for safeguarding the interests of bondholders by ensuring the terms of the bond agreement were followed.
Problems emerged when Central Bank received warnings suggesting the land securing the bonds might not actually be worth enough to satisfy the 160% requirement. In late 1988, an in-house appraiser for the underwriter flagged concerns that an outside appraisal of the land was overly optimistic and that land values in the area were declining. Central Bank considered obtaining its own independent appraisal to verify whether the covenant was still being met, but ultimately decided to delay this review for roughly six months. Before Central Bank ever conducted that independent check, the bond authority defaulted on the bonds in January 1988, leaving bondholders with significant losses.
First Interstate Bank of Denver, N.A. and Jack K. Naber, who had purchased some of the defaulted bonds, filed a lawsuit. They sued the authority, the developer, the land appraiser, and Central Bank. Their claim against Central Bank was not that the bank itself had committed securities fraud, but that it had aided and abetted the fraud committed by the other defendants. In essence, they argued that Central Bank's deliberate decision to look the other way when it had reason to suspect the appraisals were unreliable made it a knowing accomplice to a securities fraud scheme in violation of Section 10(b) of the Securities Exchange Act of 1934 and SEC Rule 10b-5.
The federal district court granted summary judgment to Central Bank, finding the facts insufficient to establish aiding and abetting liability. The U.S. Court of Appeals for the Tenth Circuit reversed, concluding that a genuine factual dispute existed about whether Central Bank had knowingly provided substantial assistance to the primary fraud. The appellate court applied an aiding-and-abetting test that had been used by nearly every federal circuit court for decades. Central Bank then petitioned the Supreme Court, which agreed to hear the case — not merely to decide whether Central Bank's conduct qualified as aiding and abetting, but to address the more fundamental question of whether aiding and abetting liability exists at all under Section 10(b).
The stakes were enormous. For roughly 30 years, every federal appeals court had recognized some form of aiding and abetting liability in private lawsuits under Section 10(b). Thousands of securities fraud cases had been brought on this theory against accountants, lawyers, bankers, and other professionals. The Supreme Court took the case to settle a legal question that had been assumed rather than truly examined: whether the statute actually supports this type of secondary liability when brought by private plaintiffs.
The Arguments
Central Bank argued that Section 10(b) of the Securities Exchange Act does not provide a basis for private lawsuits alleging aiding and abetting of securities fraud. Since the statute's text prohibits only the direct use of deceptive devices and makes no mention of secondary actors, there is no legal foundation for imposing liability on those who merely assist a primary violator.
- The text of Section 10(b) targets only those who directly 'use or employ' manipulative or deceptive devices — it says nothing about aiding, abetting, or assisting.
- The private right of action under Section 10(b) is itself judge-made and implied, not written into the statute, so courts should be especially cautious about expanding it to cover secondary actors not mentioned in the law.
- Congress has explicitly created aiding and abetting liability in other statutes when it wanted to, proving that its silence in Section 10(b) was meaningful and intentional.
First Interstate argued that aiding and abetting liability under Section 10(b) was firmly established law, recognized by every federal appellate court for decades, and that Congress had effectively endorsed it through its silence and through amendments to the securities laws that assumed such liability existed.
- Every federal circuit court of appeals had recognized aiding and abetting liability under Section 10(b) for roughly 30 years, creating deeply settled expectations in securities law.
- Congress amended the securities laws multiple times during that period without ever disturbing the judicially created aiding and abetting doctrine, suggesting legislative acquiescence and approval.
- Eliminating aiding and abetting liability would leave defrauded investors with no remedy against accountants, lawyers, and other gatekeepers who knowingly facilitate securities fraud while carefully avoiding being the primary actor.