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TSX Slaps Pure Trading with Copyright Lawsuit

In the suit, TSX alleges that Pure Trading copied the exchange's messaging protocols, which would allow Pure clients to connect to the new exchange in the same way that they connect with the TSX. An official from Pure Trading "strenuously rejects" the idea of any wrongdoing.

"The TSX has been aware since 2005 of our plans to build and launch the Pure Trading marketplace, and has been aware since 2003 of our use of the STAMP protocol for trading on the CNQ stock exchange," says Ian Bandeen, vice

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