New York Stock Exchange - http://www.nyse.com/
The highest-quality, cost-effective, self-regulated marketplace for trading financial instruments

Nasdaq - http://www.nasdaq.com/
The market of choice for business industry leaders worldwide

Securities Industry Association - http://www.sia.com/
Bringing together the shared interests of hundreds of firms to accomplish common goals

Chicago Board Options Exchange - http://www.cboe.com/
On the move - making significant changes that affect the options business