Summary
Court rebuffs Daubert challenge to investor expert’s efficient market opinion, saying securities law only requires showing that false statements affected stock price and caused loss to investors, not that market perfectly reflected all public information.
In re Groupon Securities Litigation
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See Also
Fraud Litigation Highlights Dispute Over ‘Market Efficiency’
Court rebuffs Daubert challenge to investor expert’s efficient market opinion, saying securities law only requires showing that false statements affected stock price and caused loss to investors, not that market perfectly reflected all public information.