Generally, yes. But you can place then anywhere between bid/ask, even above and below. Be patient with execution times, though. No market orders. Ever.
I guess there is no correct way but the smart way is to put a limit in. It doesn’t have to be at the top ask or bid but you want to name your high or low
I never sell on the bid unless there is a reason I need to get out immediately. I buy on the bid if I’m not in a hurry to get in or if I already have a position but am willing to add more cheap. Otherwise I buy the ask.
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