Just thought I randomly look at post auction trades and it seems the more liquid the stock, ie top 100, the more of these undisclosed trades. For instances the banks, rio, bhp were cases of multiple undisclosed trades.
Another case I noticed when looking at the market depth of ALK was that a trade occured at an ask price higher than the lowest ask price. In other words the fill jump queue for a few seconds and then subsequently filled the lower ask price. This would be defined as a centre point crossing from my understanding of the new order types. I did check the traded price of the fill and it was definetely higher than that sitting in the ask queue. Weird that this sort of queue jumping can take place.
EXT Price at posting:
$8.72 Sentiment: LT Buy Disclosure: Held
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