Quote from lescor:
It's called a specialist handling fee. He gets an extra cent/share for limit orders on the book more than 5 minutes. Obviously a cash cow for them, not like it requires any extra work on their part.
The thing that sucks about automatic cancel and re-sending of orders is that you loose your place in line at that price.

Quote from ertrader1:
and i believe they are uping their fees soon, SLK sent me a memo on order handling fees for options and equities and a new fee rates,....but i read it briefly, now i got dig it out of the trash, because i belive they go into effect at the end of the month.....but double ck this guys.....im not sure if i read it proper......unless its a P$L statment, i usally skim two words and trash the memo.
so any changes in commissions I watch like a hawk.....