544 U.S. 336 (2005) Cited 3,550 times 67 Legal Analyses
Holding that the securities statutes have a private of action “not to provide investors with broad insurance against market losses, but to protect them against those economic losses that misrepresentations actually cause”
564 U.S. 135 (2011) Cited 567 times 104 Legal Analyses
Holding that a mutual fund adviser may not be found liable for a mutual fund's violation of SEC Rule 10b–5, in part because of “the narrow scope that [courts] must give the implied private right of action”
Holding that warnings "d[id] not qualify as meaningful cautionary language" because they "did not disclose that defendants knew from past experience that the [risks] posed an imminent threat of business and financial ruin and that some damage from these risks had already materialized"
501 U.S. 1083 (1991) Cited 609 times 22 Legal Analyses
Holding that § 14 liability may not be established on "mere disbelief or undisclosed motive without any demonstration that the proxy statement was false or misleading"
Holding section 78u-4(b) does not literally require pleading of all facts, so long as facts pleaded provide adequate basis for believing statements were false
Holding that to prove loss causation, a plaintiff must allege "that the misstatement or omission concealed something from the market that, when disclosed, negatively affected the value of the security"
Holding that a plaintiff must plead with “specificity as to the statements (or omissions) considered to be fraudulent, the speaker, when and why the statements were made, and an explanation of why they were fraudulent.”