That's a loaded question and, imo, it all depends on circumstances (what the actual news is, share structure, was it prom'd, etc). Sometimes a stock sells on news. But if you are absolutely sure that it is going to go big and you don't think you will have a chance to get it at the opening ask, why not set the price at a fraction above the price, say at .021 or at .025, instead of an entire penny above it as in your example? I am not familiar with sharebuilder so I have no idea how quick or slow they are with their executions. I think the answer to your question is basically two questions: How sure are you that the news will move it hugely, and how much do you really want it?
