This morning I placed a market order for 2000 shares of a stock that had no other trades yet. I was filled and my account shows the 2000 shares. But what bothers me is that the volume for the stock was only 1950 shares traded. Well I thought maybe there would be a change to show the volume as 2000 at the end of the day when all trades should be settled. NASDAQ shows the following trades: 10:54:21 $ 1.90 407 10:54:21 $ 1.87 343 10:54:21 $ 1.87 100 10:54:21 $ 1.86 400 10:54:21 $ 1.86 700 Total on NASDAQ = 1950. My account says that I bought 1150 at $1.86, 443 at $1.87 and 407 at $1.90 = total 2000 shares. Can anyone explain why the two totals would not match. It was the only trade for that stock for the entire day. I would appreciate any help you could give.