re after market broker has advantage?, page-4

I actually put the order on to sell at 4.04 online and it went thru. it also shows at 4.05 my order went thru to buy.
At this point the market had finished its end of day stuff and only 2 buyers of OXR at $1.05 for atotal of only about 15,000 shares. I thought my order would be number 3 on the list to buy so only 15,000 shares before me.
But now at least 20 mins after I put thru my order an order apears at 4.40 to buy 2 miillion shares. Now my order will be after that as that 1 is number 3 on the list.
The rebel