I leave room for IB to explain themselves, but this is a tough one. I was going with the understanding that IB is NOT involved in market making themselves, rather Timber Hill does the market making, and that there is a Chinese wall between the customer orders & the market making (as Thomas Peterffy says, and as quoted on this board by IB employees). With this, I took a level of comfort that what's going on with my trading and personal account is protected information. Today, I visited the site www.Nasdaqtrader.com, (under "market statistics", then under "market maker volume"), and it shows in the stock that I trade most, Timber Hill LLC's volume is 33,982 shares of NASDAQ (expected); but a group under the name "Interactive Brokers LLC" shows volume of 76,812 for the month of January!! I never understood why orders that are filled with Timber Hill should have two ways of specifying the order; one "IDEAL" and the other "Smart". Does the above explain what is really going on? Again, if this is all a mistake, I apologize in advance.