"What we have today is a complete mess."

"An exchange used to be a place, yes, a physical place, where people would come together to buy or sell, hoping to achieve the best price for themselves," he said. "The more the exchange was able to attract all of the buy and sell interests in a product, the more the prices on the exchange would reflect the true state of supply and demand."

"In the last twenty years came computers, electronic communications, electronic exchanges, dark pools, flash orders, multiple exchanges, alternative trading venues, direct access brokers, OTC derivatives, high-frequency traders ... Reg NMS in the U.S. -- and what we have today is a complete mess."

"It is not so much anymore that the public does not trust their brokers. They do not trust the markets, the exchanges, or the regulators either. And why should they, given our showing the past few years? To the public the financial markets may increasingly seem like a casino, except that the casino is more transparent and simpler to understand."

"...I did not see the forces of fragmentation and the opportunity for people to use technology to keep to the letter but avoid the spirit of the rules -- creating the current crisis."

"It is vitally important that we bring an end to this crisis of trust before it spreads any further. That we bring back order, fair dealing, and trust in the marketplace. The financial markets of ... the world's developed countries are at a turning point. Technology, market structure, and new products have evolved more quickly than our capacity to understand or control them. The result has been a series of crises over the past few years that have caused many investors to lose confidence or to think that the whole system is a rigged game."

Thomas Peterffy

http://www.zerohedge.com/news/2014-04-07/father-high-speed-trading-speaks-market-we-created-casino-complete-mess-rigged-game