Years ago when I used to use a market order to buy.
The MM would hold up the order. Wait until the stock went higher then fill me at a high and then drop the stock.
I learned my lesson.
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Happened to me yesterday...it was at $1.24, filled me at $1.26, and then immediately dropped to $1.22. Not huge but still annoying, have to start learning to use limits instead of FOMO entering at all

