Take off the "AON" --- and leave it as 100,000 shares.
DO NOT CHANGE THE ORDER DURING THAT TRADING SESSION. (If you change the "bid" and/or the "share quantity" --- or cancel the order and re-input it later --- THAT/THOSE ACTIONS START THE ORDER ALL OVER AGAIN [additional commissions].)
At Scottrade, ALL executions of that 100,000 shares during THAT same 'day' as trades take effect are part of ONE BIG TRADE --- SO THAT THERE IS ONLY "ONE" COMMISSION SPREAD BETWEEN ALL OF THOSE TRADES.
IF --- only a few shares get bought, that is too bad.
But, at least, based on what you have said --- you would probably get some part of the 100,000 filled (and mebbe ALL of it).
Then you can decide what to do to-"morrow". (And even three-"morrow".)
Have a nice "one"!