William McGuinness quoted by <em>International Financial Law Review</em> on fraud-on-the-market theory

William McGuinness quoted by International Financial Law Review on fraud-on-the-market theory

International Financial Law Review quoted litigation partner William McGuinness in an article on the US Supreme Court ruling in Halliburton v Erica P John Fund that focuses on the fraud-on-the-market theory. “The Supreme Court has invited defendants to attack the underlying premise of efficient market theory – that all public information is efficiently embedded in a share’s trading price,” said Mr. McGuinness. “The decision is a bit of a mixed bag. It certainty gave defendants an important tool to use in the right cases, but because there is a price attached you need to be careful when thinking about when you want to use it.”

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