Peil v. Speiser

United States Court of Appeals for the Third Circuit · 1986 · Corporations

806 F.2d 1154 (1986)

Updated August 22, 2026

CorporationsSecurities fraudRule 10b-5Fraud on the marketSection 10(b)10b-5(a)10b-5(b)10b-5(c)

Facts

Purchasers of Health-Chem stock alleged that the corporation and its officers made false and misleading statements about the company's business prospects, especially its pheromone technology, which artificially inflated the stock price. Named plaintiff Peil bought 500 shares during the stock's rise and later sold at a loss, but testified that he had not read or heard the alleged misrepresentations except through his broker's reference to a magazine article he himself had not read. The district court ruled that this testimony defeated direct reliance for the Rule 10b-5(b) and common law claims, but allowed Rule 10b-5(a) and (c) claims to go to the jury on a fraud-on-the-market theory. The jury found for defendants on those claims and on the Section 11 claim.

Issue

Whether purchasers in an open and developed securities market may establish reliance under Rule 10b-5 through the fraud-on-the-market theory rather than proof of direct reliance, and whether that theory applies to Rule 10b-5(b) claims based on individual misstatements or omissions. Also, whether the district court's erroneous directed verdict on the Rule 10b-5(b) claim required a new trial despite the jury's defense verdict on the Rule 10b-5(a) and (c) claims.

Rule

In an open and developed market, a plaintiff need not prove direct reliance on a defendant's misrepresentation to satisfy causation under Rule 10b-5; proof that the defendant made material misrepresentations permits a presumption that the market price was inflated and that the plaintiff relied on that price in purchasing the stock. This fraud-on-the-market theory applies to Rule 10b-5(b) claims as well as to Rule 10b-5(a) and (c) claims, because a single material misrepresentation or omission can distort the market price. The presumption may be rebutted by showing that the misrepresentation did not affect the market price, or that the plaintiff would have purchased the stock even absent the misrepresentation.

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One of 10 multiple-choice questions for this case. Pick an answer to see why.

Blue Mesa Robotics, a publicly traded company on a national exchange, is heavily traded in Chicago and New York. Its chief executive issues a materially false press release about a major government contract, and the stock price rises; two days later, Elena Cruz buys shares in Denver without ever seeing the release.

In Elena's Rule 10b-5 action based on the false press release, which is the strongest argument that she can satisfy reliance?

Explanation. In an open and developed market, a plaintiff need not prove direct awareness of the misstatement. If the defendant made a material misrepresentation, reliance may be presumed on the theory that the market price reflected the misinformation and the plaintiff relied on that price when buying.