This a question I cannot find a clear answer to. When I place a buy lmt order at a certain price, I'm not sure I see it in market depth. Maybe that's because of slow updates with IB but this leaves me with a question about how markets operate. When I place a buy limit, if it's at the current Bid, does it immediately become a bid there directly associated with my account? Or, do the market makers only make bids, and then once those are filled they find my buy limit order and send me the fill? Any insight would be appreciated, thanks.