The trading houses pay an annual fee, they can trade 1 share to...

The trading houses pay an annual fee, they can trade 1 share to what ever number they feel, they dont pay for each trade like the regular Joe.
Their computers are hooked up to the ASX, they can anticipate a trade and can execute their trade even if you have pushed the go button before them.
Their software is incredible to say the least.
People are always asking why, watching SXY is a good learning curve for all.
Follow the money that's all I can say.............................................