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Re:Stock-trading app Robinhood was rejected by 75 investors by Teodolfo on Sunday May 13, 2018 @05:45PM (#17061206)
Execution quality matters and given enough order flow a they can still match client orders to make a profit without giving a worse price than NBBO.
Re:Stock-trading app Robinhood was rejected by 75 investors by physguy1123 on Sunday May 13, 2018 @09:33PM (#17062064)
That's easier said than done. If you don't already have proper market making infrastructure and strategies you'll probably lose money trying to do that. Add in market makers paying per order and it doesn't make sense