High-Speed Trader Virtu Fires Back at Critics Amid Meme-Stock Frenzy - WSJ

Payment for order flow is fundamentally flawed because it poses a conflict of interest for brokers, said Tyler Gellasch, executive director of Healthy Markets Association, a trade group for institutional investors.

Tyler’s own conflict of interest was pointed out by the reporter.

Still, he’s totally wrong. Even if and investor paid fractions of a penny more per share than the price on the exchange, that overpayment is far less than a $7 or $10 commission that they had to pay before payment for order flow.