Arizona Stock Exchange

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The Arizona Stock Exchange (AZX), an electronically enabled stock exchange for carrying out eTrading after usual stock market hours, was founded by Steve Wunsch, a former Kidder Peabody Vice President. Founded in 1990 as Wunsch Auction Systems, the headquarters of the company was moved to Phoenix, Arizona in early 1992 when it was recast as AZX or the Arizona Stock Exchange. Participants could conduct screen based trades of equity and other products through either direct dial-up or internet access. The Arizona Stock Exchange was structured as a proprietary electronic call market that was restricted to use by institutional users only. Operating under a de minimis exemption, it was not required to be registered or regulated as a stock exchange with the U.S. Securities and Exchange Commission (SEC).

The general philosophy behind the Arizona Stock Exchange was to let natural buyers and sellers of equities trade directly with one another without intermediation by a broker or dealer. The AZX sought to reduce transaction costs for its participants, remove volatility from the market and determine more robust and fair pricing for equities traded.

While the idea behind AZX was ahead of its time in the 1990's and anticipated the more successful electronic communication networks such as Archipelago, it had to close down in October 2001, due to lack of volume.