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False opinions in stock filings

Omnicare v. Laborers District Council Construction Industry Pension Fund

Updated Oct 18, 2026

In brief

The Court rejected liability based only on an opinion proving wrong, but left the investors’ omission claim for further proceedings after wiping out the Sixth Circuit’s ruling and sending the case back.

Where it stands
Decided

Decided 9-0 · March 24, 2015 · Opinion by Justice Kagan

What it’s about
Investors challenged Omnicare’s legal-compliance opinions.
Who it affects
For investors suing Omnicare under Section 11, an opinion being wrong alone is not enough; qualifying omissions about the company’s inquiry or knowledge may still support liability.

Summary: written with AI from the case record.

Illustration for Omnicare, Inc. v. Laborers District Council Construction Industry Pension Fund
Conceptual illustration · AI-generated

What it's about

The Court said an opinion is not false merely because it proves wrong, but material omissions about Omnicare’s inquiry or knowledge can violate Section 11 if they clash with reasonable investors’ understanding; it wiped out the appeals ruling (vacated it) and sent the case back (remanded) to test the claim.

Section 11 of the Securities Act of 1933 addresses false material facts and important omissions in registration statements.

Question presented

For purposes of §11 of the Securities Act of 1933, may an entity’s opinion statements constitute an untrue statement of fact if the opinion statement is shown to be objectively false without proof that the entity knew the opinion statement was false?

What the Court decided

Holding

1. A statement of opinion does not constitute an “untrue statement of... fact” simply because the stated opinion ultimately proves incorrect. The Sixth Circuit’s contrary holding wrongly conflates facts and opinions. A statement of fact expresses certainty about a thing, whereas a statement of opinion conveys only an uncertain view as to that thing. Section 11 incorporates that distinction in its first clause by exposing issuers to liability only for “untrue statement[s] of... fact. ” §77k(a) (emphasis added). 2. If a registration statement omits material facts about the issuer’s inquiry into, or knowledge concerning, a statement of opinion, and if those facts conflict with what a reasonable investor, reading the statement fairly and in context, would take from the statement itself, then §11’s omissions clause creates liability. 719 F. 3d 498, vacated and remanded.

Result
Vacated

The Court's reasoning

The Court distinguished opinions from factual claims: an opinion expresses an uncertain view, so it does not become a false fact just because it proves wrong. But material facts omitted about the issuer’s inquiry or knowledge can create liability if they conflict with what a reasonable investor would understand from the opinion, read fairly and in context.

The vote

  • Joined the judgment
  • Concurred in a separate opinion
  • Wrote an opinion
Majority · 7joined the Court's opinion
  1. Breyer
  2. Kaganwrote the opinion
  3. Kennedy
  4. Ginsburg
  5. Sotomayor
  6. Roberts
  7. Alito
Concurring · 2agreed with the result, wrote separately
  1. Thomaswrote separately
  2. Scaliawrote separately
9 justices joined the judgment (2 writing separately).

What's next

The Sixth Circuit will reconsider the case under the Supreme Court’s rule. Whether the investors can prove an omission that meets the test remains unresolved.

Documents

1

Docket activity

9
  • New analysis added

    Oct 18, 2026 · Court records

  • AI analysis generated: Impact Analysis

    Oct 18, 2026 · Generated

  • AI analysis generated: Opinion Summary

    Oct 18, 2026 · Generated

  • New analysis added

    Oct 18, 2026 · Court records

  • AI analysis generated: Case Briefing

    Oct 18, 2026 · Generated

Show 4 more
  • AI analysis generated: Decision Record

    Oct 18, 2026 · Generated

  • Case data updated: summary, question_presented, generation_metadata

    Oct 18, 2026 · Court records

  • Case data updated: question_presented, extraction_metadata

    Oct 18, 2026 · Court records

  • Opinion added: Omnicare

    Mar 24, 2015 · Court records

More questions

2
Why did Justice Thomas say the Court should not decide the omissions issue?
He said investors had not developed that theory in the lower courts, so the lower courts should decide it on remand.
What did Justice Scalia think the majority’s rule would do?
He said it would treat more opinions as implying extra facts than a reasonable listener would understand them to imply.

Sources

Primary materials plus reporting. Best-effort analysis: this explainer relies on a mix of primary materials and trusted secondary sources. Official filings and opinions remain authoritative.

Checked Oct 18, 2026Methodology

Court records and filings

Reporting and analysis