Sixth Circuit Clarifies What Constitutes a "Half-Truth" Under Securities Laws

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In a recent decision, the United States Court of Appeals for the Sixth Circuit provided guidance on what constitutes an actionable "half-truth" under federal securities laws. The court held that for a statement to be considered misleading due to an omission, the omitted facts must have a "reasonably close fit" to the information that was disclosed. This ruling aims to prevent plaintiffs from defining the subject matter too broadly in order to claim an omission rendered a statement misleading.

Why it matters

The Sixth Circuit's decision offers clarity on the legal standard for determining when an omission can render a statement misleading under Section 10(b) and Rule 10b-5 of the federal securities laws. This is an important issue, as companies must navigate complex disclosure requirements and avoid potential liability for "half-truths." The court's "reasonably close fit" test provides a framework to distinguish between immaterial omissions and those that can give rise to fraud claims.

The details

The Sixth Circuit's ruling came in the case of Newtyn Partners, LP v. Alliance Data Systems Corp. The court affirmed a district court's dismissal of a securities fraud claim, holding that the omitted facts did not have a sufficiently close connection to the information the company had disclosed. The decision builds on the Supreme Court's 2024 ruling in Macquarie Infrastructure Corp. v. Moab Partners, L.P., which described "half-truths" as "representations that state the truth only so far as it goes, while omitting critical qualifying information." The Sixth Circuit clarified that for an omission to render a statement misleading, the omitted facts must operate at a similar "level of generality" as the disclosed information.

• The Supreme Court's ruling in Macquarie Infrastructure Corp. v. Moab Partners, L.P. was issued in 2024.
• The Sixth Circuit's decision in Newtyn Partners, LP v. Alliance Data Systems Corp. was issued in January 2026.

What’s next

The Sixth Circuit's decision provides guidance that is likely to be influential in other federal courts addressing similar issues under the securities laws. Companies will need to carefully consider this ruling when making public statements and disclosures to avoid potential liability for "half-truths."