Acquisition provides lower-cost and more efficient trading environment
Nasdaq Composite Index options begin trading today
Consolidated system capable of trading 6,679 U.S. stocks
Reduced fees effective January 2
Canadian dealers now able to set up U.S.-regulated affiliate
Change aimed at simplifying analysis for investors worldwide
Rules enhance disclosure, transparency
Will also enhance official closing price
Exchange plans to become dominant U.S. market
Exchange to concentrate on core business