International Securities Exchange, LLC v. S & P Dow Jones Indices, LLC
International Securities Exchange, LLC and International Exchange Holdings, Inc. (ISE) sued S & P Dow Jones, LLC (Dow Jones) for a declaration of right to list options on S&P 500 and DJIA indices without a license, claiming federal copyright preemption. The lawsuit was stayed pending resolution of an identical case in Illinois state courts. The Illinois courts ruled in favor of Dow Jones, affirming its intellectual property rights and concluding that ISE's actions constituted misappropriation, a decision affirmed by the Illinois Appellate Court and upheld by the US Supreme Court's denial of certiorari. Upon returning to the current court, ISE sought to amend its complaint, while Dow Jones moved to dismiss based on res judicata. The court granted Dow Jones' motion, ruling that the Illinois judgment was binding under the Full Faith and Credit Act and Illinois preclusion rules, thus barring ISE from relitigating the preemption issue. ISE's motion to amend its complaint was denied as futile.