[mortehu]

They don't sell 100% of their order flow, but their firm 606 disclosure says they send significant amounts to Citadel and Virtu.

[jdreaver]

I wonder if that is just limited to IBKR Lite, their commission free platform https://www.interactivebrokers.com/en/index.php?f=45196

[austhrow743]

Even if they don't receive payment for it, one would certainly hope they're sending their orders to wholesalers and not an exchange. They'd be screwing their customers otherwise.

[mortehu]

There's no point in hoping, because the 606 forms on their website clearly say they send lots of orders to exchanges too.

[tony0x02]

During one of the interviews, I think he says that payment for order from is like 1-2% of their revenue.