I use this as a hypothetical - forget whether or not this is a fill in or partial trade or a full trade.
Let's pretend - I can put in an order for 1,000 shares at a ridiculously low price simply to manipulate the market - then try to buy back more shares at this suppressed price.
Let me emphasize - on a personal note I am not a day trader - not looking for a quick buck & GUESSING which way I can play this thing.