Reader Chuck writes:

 When a pick drifts between <4% downside  to <3% upside, when do you call the wait is up and cancel limit buy order?

 I'm assuming you mean if this is a short position and it'd be a "buy to cover."  Regardless, the real question is what to do when an open trade just sits there?  My take is to give any trade about 5 days.  If nothing happens, exit: you're probably tieing up funds you'd use elsewhere.