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CBOE member rages on in rights battle


Chicago Board Options Exchange (CBOE) member Marshall Spiegel kept up his campaign to stop the exchange's purchase of exercise rights from Chicago Board of Trade (CBoT) members last week, by sending a letter to regulators requesting a halt to the process.

Spiegel argued in a 5 May letter to Securities and Exchange Commission (SEC) that CBOE's modified Dutch...

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