Potentially stupid market structure question of the day: If PFOF were eliminated, wouldn't market makers be forced to give price improvement to win flow? If I pay $.50 for an order w/PFOF and $1 w/PI, if PFOF weren't an option I could still pay the $1 to win flow, right?
If that's true, eliminating PFOF would a) potentially increase a MM's all-in price b) hurt brokers who can no longer accept PFOF c) benefit end users who are getting more PI Right?
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1) should stay the same. .25 in PFOF and .5 in PI should become .75 in PI 2) sure, they will need to get revenue elsewhere, like carried interest, lending, and potentially the end of free trading 3) maybe, they could have to pay to trade again.
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Thanks, that's helpful. It seems like the puzzle comes down to two pieces: execution quality & commission rate. We might be at the lower bound of costs in total, but the mix towards one or the other might change over time.
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