Hi, Just curious what the rules are for partial fills? Here's what happened to me today: Was long IBM for 1000 shares. Market started to dive, so I decided to sell all 1000 shares. Got filled for 300 shares. Next two prints, no fills, then I got filled for the other 700 shares at an additional 10 cents below. So essentially, my order was chopped up and filled at different times and prices...and not sequentially. What happened? Why did the specialist do this?