I was trading nem today (March 1st) and there were time and sales cracking through 80 cents higher than the NYSE price. 100 shares went through...then over the course of the next 5 mins 1000 shares had passed through 80 cents above the best bid/offer....(I have no way of capturing the actual time and sales) I have been trading for almost 2 years....i am dumfounded and feel completely lost...i cant explain or understand this occurrence. I have attached the nem chart for the day....have a look around 3 pm.... If anyone has any ideas I would be grateful for useful responses......The trades were showing as having gone through NAS..... I was so confused that I sent a letter to the NYSE to ask how and why but I need a faster response.... Also,, for interest have a look at this post http://elitetrader.com/vb/showthread.php?s=&postid=996916#post996916 Thanks for any responses. Yours in trading.