[koolba]

Per day? That's a new one. Every brokerage I've ever used has fixed commissions for a trade, regardless of how long it takes to execute. The only edge case is a partial fill on a good till cancel limit order that causes the execution to spam multiple days. I think that might lead to multiple commissions but it's fairly u likely.

In no instance have I seen a fee for maintaining an open order. If anything they should pay you! You're essentially giving them a free option!