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Re: kex0414 post# 121951

Tuesday, 10/15/2019 8:12:54 PM

Tuesday, October 15, 2019 8:12:54 PM

Post# of 186029
TDA doesn't do the trading - they pass the orders off to the MM's, just like every other brokerage. The mm's fill a partial at the best profit point for them, then fill at a lesser profit, etc, until it is filled. You can see a trade for just one share, sometimes. It happened to me.