.01 and .99 are used on the bid/ask to get in slightly ahead of current bid (say 3.3501 vs 3.35) and under the current ask ( 3.3499 vs 3.35( to help your trade have a better chance of being filled. I use that strategy quite often on prices under $1, but, as you stated....we retailers don't have the ability to do that on higher priced shares. Maybe institutions/retailers with paid for tradinf platforms do?
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