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SEC Chairman Says Banning Payment for Order Flow Is ‘On the Table’ (barrons.com)
29 points by pcbro141 on Aug 30, 2021 | hide | past | favorite | 42 comments



> He didn’t say whether the agency has found instances where the conflicts of interests resulted in harm to investors. SEC staff is reviewing the practice and could come out with proposals in the coming months.

This is the key question.

If we can't demonstrate harm, we have a theoretical problem weighing against billions of dollars in commission savings. If we can show harm, the question would be of the lightest-touch way to rectify that observed issue. Maybe it's banning PFOF, but I doubt it.


Robinhood ($HOOD) down 8%

~75-80% of Robinhood's revenue is Payment For Order Flow.


This is already banned in the UK, Canada, and Australia. I'm unsure why its taken so long to ban in the US considering the inherent conflicts of interest.


>This is already banned in the UK, Canada, and Australia

And they're paying $5-10 in trading commissions per trade. For the typical retail trader whose order size is in the tens of shares, it's unclear how they're being harmed more than they're benefiting from it (from the free trading fees).


its the cost of investing, if that money is trouble for you then you shouldnt invest/trade anyway


Not sure about you, but given the choice between "$5/trade but it's the best price" and "free trades you might be losing a fraction of a cent per share", I'd take the latter.


Given that trades are often in the thousands of shares, they sound like they're about on par to me.

The main difference sounds psychological: "free" trades (with an asterisk) sound like they're designed to encourage people to trade quickly and without much thought. Which can be expensive come tax time, and doesn't encourage the kind of informed feedback that is supposed to keep markets honest.


No, it’s not, as PFOF has proven.


> inherent conflicts of interest.

Which conflicts would those be?


Their duty should be to get the robinhood user the best execution price for their trade. But they make no money from the robinhood user, since there is no commission. Instead, they get paid by the market maker whose interests are to get the worst execution price possible for the robinhood user.


By law, Reg NMS guarantees NBBO execution. Internalizers are providing price improvement vs. dumping an order on a lit exchange.

So by definition, the “worst price” would be routing via SIP and execution against NBBO.


I'm ignorant of this space. Can you share how Robinhood and others make money through order flow?

The semantics of it (an order has to receive the best price at the time of execution for example) doesn't capture the N ways a fund could make money here and still be compliant.

Instead of worrying about the incorrect definitions used, can you share how firms benefit from order flow instead?


The exact mechanisms by which MMs monetize order flow is the strictly guarded secret sauce. But largely it’s because retail order flow is uninformed, versus institutional order flow (bank, hedge fund, etc) which might be “toxic”.

Here’s an example with ridiculously huge spreads but just to help illustrate the issue (in reality, the spreads are fractions of a cent): let’s say the market for AAPL shares is 150 vs 151. A retail trader market sells 100 shares. Absent a dark pool or other internalizer, they will end up hitting the 150 bid. A market maker knows there is a buyer for AAPL shares and expects the 151 offer to trade. The market maker (MM) pays 10c to Robinhood for the order, and buys the shares at 10c better @ 150.10. The MM has paid 150.20 effectively (151.10 + 0.10) when the next best buyer in the market was 150.00. Why would they pay a 20c premium? Because of the buyer I mentioned earlier that the MM believes will buy their shares. The MM turns around and offers these 100 shares for 150.90 (which is 10c better than the best current offer of 151.00) and a hedge fund immediately snaps those shares up.

So what’s the net outcome? In this case, the trader has gotten a better price, Robinhood has received revenue and can offer their service for free, the MM has made a 70c turn on the trade (150.90 - 150.20) and the hedge fund buyer got a 10c better price than was available to them in the first place.

Win, win, win, win.

(The real issue is that Robinhood forces market orders which make retail traders consumer of liquidity and makes all of this possible. But that’s a different issue and PFOF is not the bad guy.)


Thank you for taking the time!

> The market maker (MM) pays 10c to Robinhood for the order, and buys the shares at 10c better @ 150.10. The MM has paid 150.20 effectively (151.10 + 0.10) when the next best buyer in the market was 150.00.

Is this possible due to the technicalities in regulations? Since they're paying a better price, it's OK that they purchase the order from Robinhood and fill it themself? The order didn't hit the "open market" or whatever we'd consider it. It was filled before then, but the best price on the open market was less than what was filled for, regulators are happy.

Very interesting that the money is from retail customers selling at bid, and makes sense.

If you'd like to share -- what's front running in this scenario and how would MMs front run this, assuming it's legal.


> Is this possible due to the technicalities in regulations? Since they're paying a better price, it's OK that they purchase the order from Robinhood and fill it themself? The order didn't hit the "open market" or whatever we'd consider it. It was filled before then, but the best price on the open market was less than what was filled for, regulators are happy.

Sort of. It’s because the MM know that it’s retail order flow. Let’s say we forced all the volume to a lit exchange. The MM might not be willing to pay 10c (the fact that they don’t proves this) because when a fund comes in to sell, it won’t be just 100 shares. It will be 1mm shares, and so MM don’t want to quote sharp prices and then get run over with a huge order.

People think it’s MM ripping off retail. It’s not. It’s MM giving better prices to retail and ripping off professional traders.


>Instead of worrying about the incorrect definitions used, can you share how firms benefit from order flow instead?

because there's a lower risk of being run over.

https://www.bloomberg.com/opinion/articles/2021-02-05/robinh...

The relevant 3 paragraphs start at "If the retail trades are random..."


laws are one thing, that doesnt eliminate the conflict of interest, it just regulates the ability to act on it.


Uh, so if a conflict of interest exists (rife in all markets) and laws prevent exploitation…what’s the issue?


The issue is PFOF is used by Robinhood to subsidize unsophisticated investors trading more to their own financial detriment.

https://www.bloomberg.com/opinion/articles/2021-08-30/esg-ac... (Control-F “gamification”)

https://www.sec.gov/news/press-release/2021-167 (SEC Requests Information and Comment on Broker-Dealer and Investment Adviser Digital Engagement Practices, Related Tools and Methods, and Regulatory Considerations and Potential Approaches; Information and Comments on Investment Adviser Use of Technology)

https://www.sec.gov/rules/other/2021/34-92766.pdf

It’s really no different then incentives and financial mechanisms casinos use to get folks in the door. Or, as the saying goes, “if you don’t know who is the sucker at the poker table, it’s you.”


You’re moving the goalposts.

Whether or not Robinhood gamifies trading, or encourages gambling, has absolutely nothing to do with PFOF.

Ultimately people should be able to do with their money as they please, include gambling it away on risky options trades. Bad trading is naturally self correcting.


You asked me what the inherent conflict of interest is top of thread. I stated it. The goal posts are firmly where they started.

Robinhood is getting paid to bring a product (the user) to market makers. If you’re not paying for the product you’re the product, all the jazz.

> Ultimately people should be able to do with their money as they please, include gambling it away on risky options trades. Bad trading is naturally self correcting.

Agree to disagree. We regulate smoking, alcohol, pharmaceuticals, gambling, and other behaviors that have self harm. This is no different.


Yes, I said that within the context of this thread, which is PFOF…

If you’re arguing that there’s a conflict of interest between Robinhood and its customers, then sure. But that’s got nothing to do with PFOF.

> Agree to disagree. We regulate smoking, alcohol, pharmaceuticals, gambling, and other behaviors that have self harm. This is no different.

Sure, I never said no regulation. You gotta stop with the strawman attacks. We regulate these industries, as we ought to do with finance, but we nonetheless allow people to drink/smoke themselves to death or gamble themselves into oblivion.

I’d rather live in a society where a small number people do enormous bad to themselves, over one where the state makes decisions for everyone.


i never said there was an issue. the person was just asking what the conflict of interest was


This has helped me form my view PFOF is not as bad as it sounds.

https://a16z.com/2021/02/17/payment-for-order-flow/


That would be bad for the retail investor. PFOF tightens the spreads and increases speed of execution.


PFOF does not tighten "lit" spreads.

PFOF does offer price improvement, which can effectively decrease the spread *for a particular marketable order". However, PFOF drives volume away from the limit markets, which determine the actual spread by which price improvement is measured against. So, it's a bit of a shell game.

Concretely, at least 20% of all stock market volume is internalized in PFOF-style firms (citadel, virtu, et. al). If that volume were all on the lit exchanges instead, the spread on those exchanges would be narrower on average.


>>PFOF tightens the spreads and increases speed of execution.

> PFOF does not tighten "lit" spreads.

But that's fine right? This whole debate is about whether retail traders are being benefiting or losing (on net) from this. For the retail trader, the price improvement they get via PFOF is probably much better than the slightly better spreads they'll get on lit exchanges if PFOF was banned.


That's mine main contention.

PFOF price improvement might be hundredths of a cent (per-share) off of a 3-cent lit spread. But, if PFOF were banned and all that volume were lit instead, the lit spread might actually be 2 cents, so you'd be saving $0.005 in this universe compared to the one we live in.


>PFOF price improvement might be hundredths of a cent (per-share) off of a 3-cent lit spread. But, if PFOF were banned and all that volume were lit instead, the lit spread might actually be 2 cents, so you'd be saving $0.005 in this universe compared to the one we live in.

1. considering that retail volume dwarfs institutional volume[1]. Therefore I find it unlikely that there will be that much price improvement on lit exchanges.

2. part of the payment for order flow goes towards making trading free for retail traders. Even if I'm getting $0.005 better prices, that would be eaten up by the $5-$10 trade commissions I'd have to pay.

[1] https://markets.businessinsider.com/news/stocks/retail-inves...


If that were true the market makers would be losing money buying the order flow, and this conversation would be moot. But instead these firms are quite profitable doing this. It’s a zero sum game so the money must come from somewhere.


>If that were true the market makers would be losing money buying the order flow

No, because as other comments have mentioned, retail orders are generally "non-toxic" and "uninformed", which allows market makers to quote tighter spreads while still maintaining profit.


Are we then saying the loser is the institutional traders? The money does not come from thin air.


Essentially, yes.


And subsidizes trading fees. Anyone else remember the days when the "cheap" brokers like ScottTrade would charge you $10 every time you bought or sold?


That would be great for the individual investor.


PFOF (more broadly, HFT + maker taker) has tightened retail spreads on both underlying AND options to levels previously unfathomable. I don’t get why people think retail are the ones getting ripped off. Retail order flow is uninformed. It’s profitable for that reason, and nothing nefarious.

Institutional traders are the ones hurt by all of this. HFT latency arbing every single sniff you put out, front running every fill. PFOF has removed the uninformed order flow for hedge funds to trade against so they’re left trading against each other, or getting their lunch eaten by the aforementioned HFT.


Exactly. Basically they took the money being made by institutions trading against individuals, and turned it into a check back to the brokerages.

That said, I hate how much volume is handled off book with these pricing approaches so not a huge fan of it?


> off book

What do you mean?


Sorry. To be more specific.

Some of the orders can be internalized. Not sure how often this occurs:

"The practice of internalization is prevalent in the Nasdaq market where Nasdaq market makers, who often pay for order flow or are sent order flow by an affiliate, trade proprietarily against incoming customer orders. NASD rules do not require Nasdaq dealers to expose their internalized orders to competitors."

On the markets - since so much retail volume is off the market, yes, the market maker has to price improve, but it's against a less than full picture of the market for thinly traded items.


I’m familiar…I spent most of my career trading for hedge funds.

“Off book” has a different meaning, which is why I asked.


probably meant "not being routed to open exchanges".


Yeah, just wanted to be clear. Off book means something else.




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