550 U.S. 544 (2007) Cited 266,697 times 365 Legal Analyses
Holding that a complaint's allegations should "contain sufficient factual matter, accepted as true, to 'state a claim to relief that is plausible on its face' "
Holding that per se "hub and spoke" theory was not properly pled when complaint detailed specific agreements between multiple insurers and a single broker, but did not allege facts such that the court could infer that the insurers had agreed horizontally to enter into their respective agreements with the broker
Holding that "to state a viable § 1 claim, [the plaintiff] was required to allege facts which, if proven true, would demonstrate that [the defendants' agreements] were likely to result in an anticompetitive effect"
Holding that allegations of conspiratorial activity “in entirely general terms without any specification of any particular activities by any particular defendant ... was nothing more than a list of theoretical possibilities, which one could postulate without knowing any facts whatever”
370 U.S. 690 (1962) Cited 805 times 4 Legal Analyses
Holding that Court of Appeals erred by addressing plaintiff's allegations as separate claims, because in an antitrust case "plaintiffs should be given the full benefit of their proof without tightly compartmentalizing the various factual components and wiping the slate clean after scrutiny of each."
Holding that a plaintiff need only "alleged specific facts sufficient to plausibly suggest that the parallel conduct alleged was the result of an agreement among the defendants"
Holding that, in cases of fraudulent concealment, "the plaintiff may prove the concealment element by showing either that the defendant took affirmative steps to prevent the plaintiff's discovery of his claim or injury or that the wrong itself was of such a nature as to be self-concealing."