Sorry to use your posts.
Hypothetical through, since I don't have a service such as alphacharts (no commercial intended) and I see a 500K at 4.9, or for that matter even on alphachart, if someone had put in a buy at 500K at 5.8 and it took all waiting sales, including one for a few thousand at 4.9 to fill the 500K order, wouldn't it end up showing as a 500K at 4.9????