market-efficiency

2 cases — ← All topics

Case Title Lower Court Docketed Status Flags Tags Question Presented
25A744 Johnson & Johnson, et al. v. San Diego County Employees Retirement Association, et al. Third Circuit 2025-12-23 Application basic-presumption class-certification corrective-disclosure market-efficiency price-impact securities-fraud 1. This case warrants the Court's review because it presents an ideal vehicle for the Court to resolve two related splits of authority about the prope…
25-351 Shanda Games Limited, et al. v. David Monk Second Circuit 2025-09-24 Denied Amici (2)Response Waived class-action fraud-on-the-market investor-reliance market-efficiency presumption-of-reliance securities-fraud Whether the fraud-on-the-market presumption applies to all securities plaintiffs or only those trading at market price in an efficient market