521 U.S. 591 (1997) Cited 6,940 times 69 Legal Analyses
Holding that courts are "bound to enforce" Rule 23's certification requirements, even where it means decertifying a class after they had reached a settlement agreement and submitted it to the court for approval
559 U.S. 633 (2010) Cited 661 times 18 Legal Analyses
Holding that because no event preceding the critical date constituted "discovery" of facts necessary to bring the complaint, the plaintiffs' suit was timely
527 U.S. 815 (1999) Cited 930 times 18 Legal Analyses
Holding that "a fairness hearing under Rule 23(e) is no substitute for rigorous adherence to those provisions of the Rule designed to protect absentees"
547 U.S. 71 (2006) Cited 668 times 43 Legal Analyses
Holding that state law class action securities fraud claims brought by “holders” of securities are, just like those of “purchasers” and “sellers,” preempted by the Securities Litigation Uniform Standards Act
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
15 U.S.C. § 78j Cited 12,493 times 165 Legal Analyses
Granting SEC power to establish rules to further statute forbidding manipulative or deceptive devices in connection with purchase or sale of securities