550 U.S. 544 (2007) Cited 266,625 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 extrinsic materials were not "integral" to the complaint because the complaint "d[id] not refer to the[m]" and "plaintiffs apparently did not rely on them in drafting it"
Holding that deception occurs when "investors are misled to believe that prices at which they purchase and sell securities are determined by the natural interplay of supply and demand, not rigged by manipulators"
Holding that a court considering a Rule 12(b) motion is "limited to the complaint, any documents attached to the complaint, and any documents attached to the motion to dismiss that are central to the claim and referenced by the complaint"