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Taking Certification Seriously – Why There Is No Such Thing As An Adequate Representative In A Securities Fraud Class Action, Richard A. Booth

Working Paper Series

Securities fraud class actions (SFCAs) arising under Rule 10b-5 are well established as a feature of the legal landscape, but they are a vestige of a largely outdated view of investor behavior and preferences. In the 1960s, most investors were undiversified stock pickers. Today, most investors hold stock through well diversified institutions. As a result, most investors are net losers from SFCAs. Moreover, it is arguable that it is irrational for most investors not to be diversified. A passive investor who fails to diversify assumes unnecessary risk for the same expected return that diversified investors enjoy. Given that federal securities …