Quote Originally Posted by Alpha View Post
I am sure this has been asked before and I have seen the answer somewhere but I cannot seem to find the answer.

Can someone please explain to me what the trades are the show up an the end and beginning of the day. I have just placed a target order and it has not shown up. So what are all these additional buys and sells? They also seem to disappear on opening.
Opening Auction and Closing Auction.