The broker is benefiting - in the case of Robinhood he is sharing that benefit with the customer. The customer will get the exact same price as if his order we

The broker is benefiting - in the case of Robinhood he is sharing that benefit with the customer. The customer will get the exact same price as if his order went to the public exchanges. The only difference is that instead of selling to anonymous person on BATS, he'll sell to anonymous HFT on the broker's internal dark pool.