How's that handled by the market? Do you just keep presenting a bid of 5 as they fill? Or does the fill of the first 5 present the whole order to the market?
Thanks, I learned something from you today. Friday, I was watching GILD options and saw for one particular strike price, consecutive trades of 10 contracts were executed in rapid succession until it hit 50 contracts. The fellow was probably using this method and the transaction price was mid point bid/ask.
I often paid dearly when the bid/ask sizes were small compared to my orders as I had to pay much higher than mid point to get my trades done.