Mondo Visione Worldwide Financial Markets Intelligence

FTSE Mondo Visione Exchanges Index:

Price Improvement Through BOX’s Price Improvement Auction Tops $3 Per Contract For First Time, Average Daily Contract Trading Volume Up 24% In April 2006

Date 02/05/2006

Average daily trading volume on the Boston Options Exchange (“BOX”) in April 2006 was 414,845 contracts, a 24% increase over the previous month and a 35% increase over the same month in the previous year. Average daily volume for the month was the third best in BOX’s history. BOX market share on listed classes was slightly above 7%. The options industry continued to witness significant dividend related trading activity among options market makers on several of BOX’s competitors. If the largest of these were excluded, BOX market share of equity options for the month of March would increase to approximately 7.4%, a more relevant measure of its market share.

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