Payment for Order Flow was invented by Bernie Madoff. I believe many of the technical and complex Wall St. "products" like that are probably scams if it were la

Payment for Order Flow was invented by Bernie Madoff. I believe many of the technical and complex Wall St. "products" like that are probably scams if it were laid out in laymans terms. Not products that retail/brokerage account holders use like buying a stock, ETF's or those "20XX Retirement Fund" - I'm talking about the obtuse derivatives and other "products" that Wall Street invents for themselves. Edit to add: PFOF is the mechanism that Robinhood (and others) make money on - back of house Wall St. pays Robinhood for the order flow.