Whoa Shadow there is a whole lot going on in that post - You are speaking about , HFT , naked shorting and 2 exchanges -
S/B Am I right in assuming you dont have a live depth screen ? - Many times I have bought and sold and I can see which exchange my order has been filled from - sometimes its just ASX sometimes its a mix fill ASX and CHI X and sometimes its just Chi X - I have listed an example below on BRU current depth screen a $340m market cap company similar to CDU.
CHI x trades obviously have a bigger presence on the blue chip stocks.
click to expand
top image is combined price points -second image is individual orders
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