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Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by eigenvalue on Tuesday November 05, 2019 @12:43PM (#21454646)
It will be interesting to see if Robinhood will go after (i.e., pursue claims in court) teenagers who get carried away and rack up $50k+ deficits from this. The article links to a Youtube video of a young person watching their account (which they used this bug to accumulate a $50k+ position in Apple puts right before they beat earnings recently) evaporate in front of their eyes, going deep into negative territory. Even though Robinhood has a good legal claim here, it would be very bad PR for people to start thinking that they can lose a lot more than they put into their accounts. Bad enough that you can lose all of that in the blink of an eye with margin trading, but it should be impossible to mortgage your whole future that way!
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by superfrank on Tuesday November 05, 2019 @01:20PM (#21455075)
I visit /r/wsb pretty frequently, so I would like to add two bits of information that might change your mind.

1) The user /u/ControlTheNarrative (CTN) made plenty of posts before losing the money where he made it very clear he knew exactly what he was doing. He had a post where he spelled out exactly how to gain the extra leverage and that his "personal risk tolerance" meant he could handle 25:1 leverage. Additionally, his response after the fact was something along the lines of "once I earn another $2000, I plan on doing this again". This kid didn't just click a wrong button and end up with the extra leverage, he was well aware of what he was doing.

2) Take this one with a major grain of salt, but based CTN's comments in the original posts and some comments by other users, it seems like this might not have been the first time CTN has used this exact trick to blow up an account. When the video was first posted, multiple commenters mentioned that he'd done it before and some of CTN's comments after the fact seem to hint at that. Again, take this with a huge grain of salt since I have nothing concrete to back that up.

The last time RH was in the news for some user losing way more money than they had (IR0NYMAN) I actually felt for the user a little bit and can understand why RH (supposedly) didn't go after the money after the fact. IR0NYMAN was creating box spreads, which can be a legitimate strategy, although they are very hard to find a situation where you can make money with them. That user stupidly didn't understand RH's rules around options exercise which is how he got screwed, but had he been able to hold all his contracts to exp (like European options allow) he actually would have been fine.

I can understand RH writing off IR0NYMAN's debt because it didn't seem like the user truly understood what he was doing, but this one feels different, IMO.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by swarnie_ on Tuesday November 05, 2019 @04:31PM (#21456921)
I find the idea of a serious legal professional having to read through those threads on WSB actually makes me happy.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by codyb on Tuesday November 05, 2019 @05:51PM (#21457649)
r/WSB seems to be a Wall Street 4chan and it's definitely pretty funny reading through some of the threads.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by rb666 on Wednesday November 06, 2019 @04:40AM (#21461008)
4chan is a degenerate pile of nazi dung, most of the time. WSB is mostly innocent fun.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by dgellow on Wednesday November 06, 2019 @05:01AM (#21461119)
4chan is more than just /pol.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by n0rbwah on Wednesday November 06, 2019 @05:47AM (#21461327)
/pol has leaked all over though
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by swarnie_ on Wednesday November 06, 2019 @05:43AM (#21461309)
Spoken like someone who hasn't visited since 2015.

/pol/ and /b/ are only two boards out of about 80

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by kpU8efre7r on Tuesday November 05, 2019 @10:21PM (#21459472)
That subreddit cracks me up more than the rest of Reddit combined.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by boopk on Wednesday November 06, 2019 @03:31PM (#21466865)
Guhranteed
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by ryandrake on Tuesday November 05, 2019 @04:05PM (#21456692)
If you try to sign up for options (or margin) trading on any brokerage, none of them will let you do it unless you affirmatively confirm that you understand that: not only can you lose your ass trading derivatives, but you can lose asses that you don’t currently have and you can lose asses that you didn't even know exist.

Doesn’t RobinHood have these disclosures and gates?

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by mikestew on Tuesday November 05, 2019 @07:40PM (#21458591)
There is no requirement that you understand anything except how to check that checkbox that says, “yeah, yeah, I promise I read the PDF you sent. Let me trade da options!!!”
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by perl4ever on Tuesday November 05, 2019 @10:04PM (#21459380)
Some brokers have different levels of option trading privileges, and require you to attest to a certain amount of experience to get to the highest.

I'm not sure if there are any consequences to lying about your experience, but in principle, you are claiming certain facts in writing, not just saying you read a disclaimer or educational material.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by superfrank on Tuesday November 05, 2019 @04:44PM (#21457046)
Yes they do. In my uneducated opinion, legally, it seems both are responsible for the money.

Whether RH goes after them is a totally different story though. You can't squeeze blood from a rock.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by icedchai on Tuesday November 05, 2019 @06:58PM (#21458284)
You basically fill out a form and check a couple of boxes. It's about a simple as opening a Facebook account. This is not much of a deterrent.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by nodesocket on Tuesday November 05, 2019 @05:41PM (#21457547)
Let's say the user is able to profit with the options, quickly requests a transfer to their bank account and it completes. Can't Robinhood withdraw the money back from the users bank account claiming fraud?
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by KnMn on Tuesday November 05, 2019 @03:17PM (#21456212)
Very important context. Thank you.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by rantwasp on Tuesday November 05, 2019 @11:27PM (#21459706)
technically it’s ir0nyman1 but who’s counting

on a more serious node: RH should close the loops and be thankful that someone is finding these bugs for free - well almost

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by tempsy on Tuesday November 05, 2019 @01:08PM (#21454920)
I believe Robinhood is violating Finra rules around margin trading though. Do they really want to go to court and claim incompetence on their own part?

Trust is everything in fintech. Now that this story has moved from one obscure subreddit to Bloomberg I don't know how they start to reclaim it if they cannot calculate numbers correctly as a brokerage.

The consensus on /r/wallstreetbets is that Robinhood is a joke, which is pretty much the last thing you want to be thought of as a financial services provider.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by H8crilA on Tuesday November 05, 2019 @01:19PM (#21455058)
Indeed, they should be worried about their own skin. The SEC should shut down their operations immediately, at least anything that involves margin. Like today. It's not even about PR, this is a pretty bad violation of federal law. We don't know how many people may be using it.

This is the financial equivalent of forgetting to check password on a login form. It's that stupid.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by AznHisoka on Wednesday November 06, 2019 @05:12AM (#21461166)
If they shutdown their operations today, that would be incredibly detrimental to existing users. what if I held an option expiring this week? Am I forced to let it expire because the SEC forced them to shutdown? Seems like a douchebag move. sensible thing would be to remove margin from all accounts. if you want to prevent anymore transactions, at least give people some heads up so they can liquidate time-sensitive positions.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by ozi on Tuesday November 05, 2019 @01:51PM (#21455382)
> I believe Robinhood is violating Finra rules around margin trading though.

Yeah, this is why the scenario is unique to most other r/wallstreetbets losses. With a good attorney the guy may come out of this relatively unscathed.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by pc86 on Tuesday November 05, 2019 @02:16PM (#21455637)
How long ago was the whole /u/ir0nyman debacle with box spreads? RH's incompetence in the regulatory space has been pretty well known for quite a while now (well before ir0nyman).
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by tempsy on Tuesday November 05, 2019 @02:21PM (#21455695)
Probably less than a year ago.

Yeah, but when this stuff becomes mainstream fodder it becomes more embarrassing to regulatory agencies if it is left unresolved in the public eye. The box spread thing wasn't on the frontpage of Bloomberg/CNBC AFAIK.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by 0xffff2 on Tuesday November 05, 2019 @04:34PM (#21456943)
I don't know about the front page, but /u/ir0nyman definitely got a mention in Money Stuff, which basically constitutes "winning" r/wsb AFAICT. I doubt there's anyone in finance who hasn't at least heard of the ongoing wsb/RH drama at this point.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by gowld on Tuesday November 05, 2019 @02:30PM (#21455772)
The consensus on /r/wallstreetbets is also that /r/wallstreetbets is a joke, so it's confusing.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by tptacek on Tuesday November 05, 2019 @04:44PM (#21457049)
Help me understand what is interesting about this bug that makes unauthorized margin trading RH's responsibility rather than the customer's? I thought I understood what was happening from the WSB thread, but since so many people here seem to think this is sui generis and clearly bad for RH, there must be something I'm missing.

To me, it looks like a bunch of people on Reddit found a bug and then, extremely ill-advisedly, exploited it flagrantly in real-money accounts they controlled. Based on my understanding of the situation, which may be weak, I'd be a lot more worried to be one of these customers than I would to be RH at this point.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by QuadmasterXLII on Tuesday November 05, 2019 @06:15PM (#21457877)
The scheme is executed in two parts:

First, the user exploits the bug to build up a massive pool of margin. Roughly, this is equivalent to taking out a $50,000 loan from Robinhood

Second, the user buys $50,000 of soon to expire options. Roughly, this is equivalent to pairing with another (innocent) trader, each putting up $50,000, and flipping a coin for the pot.

If the user wins the coin toss, then Robinhood is fine: the user pays back the $50,000 he borrowed, keeps the $50,000 he won, and Robinhood nets some small amount of interest for their loan. However, if the user loses, Robinhood never gets back their $50,000 dollars. That money is now in the possession of the random trader who was on the other side of the coin toss, and there's no way to get it back because that trader legally won it. The user who ran the scam owes Robinhood $50,000 but that debt is close to worthless.

It doesn't really matter who is responsible. Even if Robinhood prosecutes everyone who perpetuates this scheme and sends them to jail, they'll still never see their money again.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by sarah180 on Tuesday November 05, 2019 @10:52PM (#21459588)
RH probably won't be repaid, but they have incentives to recover here. Every state is different, but e.g., in California the median wage is about $20 / hour, and you can garnish 25% of the income above the state minimum wage of $12 / hour. That's about $4,000 / year. It's probably not worth it for RH to sue for this, but they might get back $10–15 k from a debt collection agency, which are designed to recoup debts over a period of years, all the while collecting hefty interest payments.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by perl4ever on Tuesday November 05, 2019 @10:06PM (#21459391)
"Roughly, this is equivalent to pairing with another (innocent) trader, each putting up $50,000, and flipping a coin for the pot."

Seems like a better game if the other party is not so innocent, or independent...

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by Zarel on Wednesday November 06, 2019 @12:55AM (#21460056)
If the other party is not so innocent, I believe that counts as market manipulation, which is highly illegal.

There's not much incentive here to do that, anyway; it doesn't increase your expected value over the original coin flip.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by pnako on Tuesday November 05, 2019 @05:08PM (#21457277)
We don't have all the details.

Either they have a working portfolio valuation model, and they missed this rather obvious case of linking a written call to its underlying, or they don't have a proper valuation model at all. If they actually do portfolio valuation by simply valuing each line and adding them, then it's not just wrong but gross incompetence. It would not be the first broker to blow up due to mispricing clients derivatives portfolios. The idea that a startup is letting millenials trade derivatives like this is absurd in the first place.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by tptacek on Tuesday November 05, 2019 @05:14PM (#21457342)
It doesn't seem, from the descriptions, to be possible to exploit this bug without knowing that you're doing it. It's not like they simply don't enforce margin limits; in fact, it looks like you have to apply the bug iteratively to do anything interesting with it. That being the case, it doesn't appear to me like the people exploiting it will have any way of talking their way out of the intentionality of their actions, at least not to a "reasonable person" standard that would be applied in civil court. It looks like cut-and-dried fraud. Am I wrong about that?
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by pnako on Tuesday November 05, 2019 @05:26PM (#21457437)
Oh, in that case it's definitely fraud because, as you pointed out, it's clearly intentional (you have to repeat the trick many times).

But the $8 billion question is: are we talking about an obscure bug, a missed case in an otherwise perfectly sound valuation and risk management model, or is it actually a case of dodgy valuation and risk modelling? Which implies that many well-meaning clients are also seeing the wrong portfolio value, and trading with invalid margins?

Again, I don't have the details so I don't want to speculate too much, but apparently they've had similar "bugs", so it's possible that their entire valuation and risk model is dodgy. It has happened to more reputable organizations.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by lallysingh on Tuesday November 05, 2019 @09:06PM (#21459034)
Bugs in the software come from bugs in the process. They are showing their process in their inaction.

If their stuff was generally sound except for this, they would have shut down margin trading until the bug is fixed.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by tptacek on Tuesday November 05, 2019 @09:53PM (#21459315)
It's hard to think of a bug or vulnerability that you couldn't compose an argument like this for. Does it matter? They left the back door unlocked; you'd still get in trouble for letting yourself inside.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by lallysingh on Wednesday November 06, 2019 @08:50AM (#21462517)
They clearly don't take the issue very seriously, as they allow margin trading to continue. That is not normal. They're exposing customers to more risk than they should be, and that's a very serious no-no.

I don't think small bugs in high quality shops would fall under this argument.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by tptacek on Wednesday November 06, 2019 @09:45AM (#21463041)
What's a "small bug"? What's a "high quality shop"? I've spent years doing software security assessments for much larger financial service firms than Robin Hood, and found far worse things than this.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by lallysingh on Thursday November 07, 2019 @12:19PM (#21475085)
The broker/dealer I work for stops trading on bugs causing much smaller (even $0) material impact.

For brokers in particular, they are highly regulated and I can't imagine them not ending up with a nasty investigation+large fine from regulators over this.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by kaffeemitsahne on Tuesday November 05, 2019 @05:19PM (#21457384)
Why shouldn't "millennials" be allowed to trade derivatives just like anyone else?
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by pnako on Tuesday November 05, 2019 @05:29PM (#21457461)
Good point. Generally, most people should not be trading derivatives.

I was pointing out millenials in particular because it's the population targeted by those startups, whose business models is more or less implicitly: millenials have no clue about money and finance. Which is true, but also unethical.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by shawabawa3 on Wednesday November 06, 2019 @07:38AM (#21461872)
> millenials have no clue about money and finance. Which is true

Older millennials are approaching 40. The majority of hacker news members are probably millennials

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by aristophenes on Tuesday November 05, 2019 @04:59PM (#21457197)
They're both responsible, the difference is Robinhood has to settle the trade in a day, and then they have to try to collect from someone who likely doesn't have any assets to give them. And if they do, they will still likely have to take them to court. So it costs Robinhood time and money even if they get their money back, which is doubtful.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by MuffinFlavored on Tuesday November 05, 2019 @01:08PM (#21454919)
> it would be very bad PR for people to start thinking that they can lose a lot more than they put into their accounts

I don't know if it would be bad PR... The guy very deliberately leveraged himself because he thought he'd gain social approval from his peers at r/wallstreetbets

It's a great public service announcement for: just put your money into index funds and stop trying to gamble on stock earnings.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by tinco on Tuesday November 05, 2019 @04:14PM (#21456770)
Just in case someone doesn't know about r/wsb and thinks it's just a degenerate gambling community.. they're sort of right but there's more to it. It is a community centered around self deprecating humor, basically people enjoy trying to become successful at trading, but they know the reality is that they're not very likely to succeed, so they share their trials and tribulations on r/wsb to make jokes about their own stupidity.

Some people are richer, either because they have good jobs, inherited or had prior success, so they lose more and the community enjoys their posts more.

The idea that you would do something stupid that costs you more money than you could afford (and possibly gets you into more trouble) just so that a group of people can laugh at you and make jokes at your expense is ridiculous, but I get that some people really crave that sort of attention. It goes a bit far to say that they get "social approval" from the community though.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by fyp on Tuesday November 05, 2019 @01:49PM (#21455371)
While we are on the topic of leverage and index funds, can someone explain leveraged index funds to me?

If I believe index funds are going to have a positive return, why not try to lever it up as high as possible? For example TQQQ (triple leverage) looks pretty enticing compared to QQQ.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by gr2020 on Tuesday November 05, 2019 @01:58PM (#21455448)
Leveraged index funds generally work as expected on an intraday basis - but they're not intended for longer term holds. You can of course try it, but things will not turn out as you'd hope. Here's an article describing what happens:

https://www.investopedia.com/articles/financial-advisors/082...

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by planteen on Tuesday November 05, 2019 @04:04PM (#21456669)
Outside of tracking error and expense fees, there is a more fundamental issue. When the market goes down X%, you need it to go back up Y = 1/(1-x)-1 to break even. So the market goes down 10.0% one day and then up 11.1% the next, an investor in the normal 1x is back to where they started. A 2x investor is still down and a 3x investor is down even more. So the average daily noise of the market kills you.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by Pyxl101 on Tuesday November 05, 2019 @06:04PM (#21457768)
> So the market goes down 10.0% one day and then up 11.1% the next, an investor in the normal 1x is back to where they started. A 2x investor is still down and a 3x investor is down even more.

Can you explain why that is? I would have expected that your gain or loss from the leverage funds relates only to the difference in price between when you purchased and when you sold (multiplied by the leverage).

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by pnako on Wednesday November 06, 2019 @01:33AM (#21460221)
Because of the triple leverage, a 33.33% drop would entirely wipe out the fund. Back to $0. A 33% drop in a single day has never happened (1987 Black Monday was 22%) but it definitely does happen if you consider a longer time frame.

Hence why it's reset daily, as the other two responses explain.

And in case it's not been made clear enough: it's the very opposite of a sound investment. It's very much a risk management / trading instrument. It's something you would trade as a hedge or leg of a complex trade; not something you want to hold by itself.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by fred256 on Tuesday November 05, 2019 @10:26PM (#21459499)
The leveraged funds like TQQQ reset their leverage on a daily basis.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by maximente on Tuesday November 05, 2019 @10:36PM (#21459538)
the leverage amounts typically "reset" daily (not always; read the prospectus) so if you lose 10% (say $100 => $80) at 2x your day 2 base is $80; a 10% gain that day would average out to 0 on net but you would gain 20% of $80 => $96
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by MuffinFlavored on Tuesday November 05, 2019 @02:14PM (#21455613)
I read that 3x leverage is bad because of volatility drag or something like that so 2x "is the sweet spot"

SSO is 2x leveraged SP500

https://finance.yahoo.com/quote/SSO

Check out the chart since 2007 versus the SP500 index to today. I'm seeing 211% return for SSO, 113% for SPY.

Just remember that we've pretty much been in a full on bear market ever since the last recession. Whether or not terrible things would have happened to SSO if we experienced a true recession/crash and whether or not you would actually recover/beat SPY, I have no clue and am not qualified to say.

But, based on the cherry picked '07-'19, yes, SSO (2x SPY) beats SPY (1x SP500) 211% to 113%

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by smabie on Tuesday November 05, 2019 @04:27PM (#21456888)
It really depends, see my blog post on the matter (part 1):

https://smabie.github.io/posts/2019/10/04/vol.html

In short, assuming a normal distribution, your max leverage ratio should be the future expected returns divided by the expected variance.

I’m not at a computer right now so I can’t run the math on real S&P returns, but assuming 10% returns and 10% vol and a normal distribution, the highest leverage ratio you would ever be able to justify is 10/10^2 or 10x leverage.

In my blog post I looked at the beginning of 2018 up to present. The ideal leverage ratio according to my equation (I’m sure it’s not novel, but haven’t been able to find anyone else talking about it), is 2.99x.

Of course, the more skew or kurtosis the distribution has the less accurate this equation becomes.

Right now I’m working on a hypothetical S&P ETF that adjusts leverage bases on forecasted volatility and returns. Almost impossible to get right, but my preliminary model has outperformed (not risk adjusted) any fixed leverage I’ve thrown at it.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by MuffinFlavored on Tuesday November 05, 2019 @09:43PM (#21459257)
You made a blog post that 10x leverage would be good given the past 12 months (where the market has mainly been up-up-up)? Doesn't that 100% ignore the effects of drag when the market goes down-down-down?
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by smabie on Wednesday November 06, 2019 @03:29AM (#21460666)
First of all, the market has not been exactly “up-up-up.” There has been massive volatility and drawdowns in the last year.

Second, my analysis was from the beginning of 2018 to present. Using that data, the ideal leverage ratio is 2.99x.

Third, the ret/var model put forth in the post assumes a log-normal distribution. The less log-normal the returns are, the less accurate it becomes. Excess kurtosis or skew will definitely affect the accuracy of the model. So the model would probably be fine if the market was up-up-up or down-down-down, I haven’t encountered any periods in which the non-normality of the distribution is so severe that it completely breaks the model.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by vincentmarle on Tuesday November 05, 2019 @03:12PM (#21456159)
You also need to pay interest on the leveraged margin, so on the long term you'll lose more money on interest than you'll gain.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by smabie on Tuesday November 05, 2019 @04:33PM (#21456939)
This isn’t true. Market returns are almost always going to be higher than the borrowing cost. In fact, I can’t think of a single hedge fund that doesn’t use leverage either through: shorting, borrowing, options, or futures.

Leverage is almost always the secret sauce to institutional strategies. And if we’re talking about quant funds, without leverage they wouldn’t exist.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by perl4ever on Tuesday November 05, 2019 @10:12PM (#21459424)
"Market returns are almost always going to be higher than the borrowing cost"

This sounds like perpetual motion to me. It's like Moore's law - no matter how long it's gone on for, it can't go on forever.

If everybody believes that, and people who actually control trillions of dollars do it on a massive enough scale, just borrow money and invest in stock, then it has to break things down at some point, doesn't it?

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by smabie on Wednesday November 06, 2019 @03:11AM (#21460599)
Due to volatility tax [1], there’s an upper limit on how much leverage you can assume. This amount is a function of forecasted returns and variance: r/var(r). The larger this ratio is, the more leverage you can take on. In general, just investing in the broad equity market with anything above 3-5x leverage over the long-term is probably unadvisable. So groups like hedge funds first reduce their volatility by going long and short, and then leveraging up afterwards. Even with market neutral funds (0 market exposure), the leverage applied rarely goes past 6x nowadays.

Banks are a little different and while the rules are complicated, big banks need to have around 3% of their total book at hand. Or in otherwords, they have around 33x leverage. Because of the leverage, banks need a very diversified uncorrelated portfolio in order to reduce volatility. No bank would stuff all of their money into equities, the risk of ruin is too high.

Also, there’s another perspective to look at your question: the efficient market hypothesis. In short, EMH states that in general, all investments have the same or trend toward the same risk/reward profile. That is, the ratio or slope of the returns vs volatility should be the same. With debt/credit, there are two primary options: you get paid back with interest or you don’t (let’s ignore bankruptcy). With equities you are assuming a lot more risk, the stock could go up or down or whatever. Since you are assuming more risk with equities than credit, it would violate EMH if you weren’t compensated for the extra risk.

This however, doesn’t explain why equities perform so much better than everything else. This is called the equity premium puzzle [2].

So maybe you’re right? No one really knows. Maybe the jig will eventually be up? Or maybe not, no one really knows.

[1] https://en.m.wikipedia.org/wiki/Volatility_tax

[2] https://en.m.wikipedia.org/wiki/Equity_premium_puzzle

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by perl4ever on Wednesday November 06, 2019 @11:44PM (#21470462)
I spent some time thinking about leverage and margin, and my thinking was

- I don't want to invest on margin unless the interest rate is significantly lower than stocks generally return

- as a rule of thumb, 7% is a conservative estimate for stocks in the long run, while a typical broker charges close to 10%. So it seemed like a non starter.

- however, it is possible to find rates as low as 3-4%, so then the question becomes how much leverage to use?

- my logic was, what kind of drawdown is plausible if you invest at a market peak? It appears based on known history that -70% could happen. Therefore it would be best to limit leverage so that more than a 70% decline would be needed to cause a margin call.

- which seems to lead to borrowing no more than 25-27% of one's equity.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by maximente on Tuesday November 05, 2019 @11:18PM (#21459675)
for a large number of reasons it's hella hard to make money in finance. you can make whatever the vanguard index fund makes "for free" in your pajamas, so in order to justify your existence as an org within a financial institution you're going to need to put together some returns that are, obviously, way higher than that. so out come things like leverage and derivatives (=> hyper-leverage).

and yeah, there are failures, and they lose their shirts, and the beat goes on. but you're probably not going to make very much money (=> last very long) if your rate of return is the same order of magnitude as the collateral you're taking out. it's just not worth it from the POV of the bank.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by SpelingBeeChamp on Sunday November 10, 2019 @02:02AM (#21496826)
But isn't much of their money being made from fees?
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by iopq on Tuesday November 05, 2019 @03:29PM (#21456333)
Clearly not, gains of the stock market are much higher than interest
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by cortesoft on Tuesday November 05, 2019 @01:21PM (#21455085)
But that is the exact opposite message that Robinhood wants to send (even if it is the correct message).
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by MuffinFlavored on Tuesday November 05, 2019 @01:25PM (#21455136)
I think Robinhood wants to send the message that they offer a simple, elegant stock trading app. I feel (no proof) that they target people with net worths of less than $50k to come and trade a few stocks. AAPL, TSLA, NFLX, MSFT, GOOG, etc.

I don't think they actually want you to trade on margin. It's just, some people are addicted to volatility / the chance of "sweet gainz" and they see "regular Joe" posting pictures of turning $1k into $100k by making "the correct lucky" options trade, so they are down to try to do it too.

I don't think that's Robinhood's message. It's just a side effect of having an easy to use app with no fees.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by squeaky-clean on Tuesday November 05, 2019 @03:06PM (#21456102)
> I don't think they actually want you to trade on margin.

Have you used RH? I use it for exactly your example, every other paycheck I put some in VOO and a bit on some individual stocks. They push Robinhood Gold so hard. There used to be a glowing gold banner at the top of your portfolio advertising to join gold and get $10,000 today or whatever.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by mrep on Tuesday November 05, 2019 @03:40PM (#21456435)
Why don't you just buy VOO on vanguard considering there is no commission fee on vanguard when buy vanguard ETFs?
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by squeaky-clean on Wednesday November 06, 2019 @05:45AM (#21461321)
Because I'd still like to buy other stocks. There's also no fee on RH so what is the downside of using RH?
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by gowld on Tuesday November 05, 2019 @02:32PM (#21455782)
RH can simply not offer margin if they don't want their customers to use margin. "not handing out money" is the traditional way that anyone avoids the risk of losing money due to handouts.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by alonmower on Tuesday November 05, 2019 @04:41PM (#21457020)
I disagree. I signed up to check it out and they’ll consistently push notifications about upcoming earnings calls. They’re clearly trying to promote a very short horizon mindset
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by toomuchtodo on Tuesday November 05, 2019 @12:55PM (#21454767)
Robinhood will likely not, considering they are grossly non-compliant with Regulation T (and have been reported to the SEC and FINRA regarding this issue), which governs margin requirements. This is someone's risk management system failing on a trivial use case.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by eigenvalue on Tuesday November 05, 2019 @12:58PM (#21454806)
I agree that they are unlikely to go after them, but I think if you read the fine print of the margin product, the customer agrees that the borrowed money is a debt and must be repaid. Also RH could argue that the customer acted in bad faith, being fully cognizant that what they were doing was against the rules.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by toomuchtodo on Tuesday November 05, 2019 @12:58PM (#21454813)
Robinhood extended margin it was not legally permitted to extend (Reg T is federal statute, btw). I am very interested in sitting in any court room as an observer where their counsel attempts to collect.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by Aperocky on Tuesday November 05, 2019 @01:04PM (#21454877)
This, laws will overrule fine print or service agreement at any single time.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by SpicyLemonZest on Tuesday November 05, 2019 @01:03PM (#21454868)
But they didn’t intend to, right? If I steal money from a broker’s desk drawer and use it to do dumb futures trades, surelt that’s not a regulatory violation on the broker’s part.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by toomuchtodo on Tuesday November 05, 2019 @01:07PM (#21454912)
Great case to make that you are so incompetent as a broker-dealer that someone was able to extend themselves 250x leverage on the margin you extended. That's how you lose your broker-dealer license, which means your business dies if you're Robinhood (unless they're only going to offer a cash management account, which I guess might be a thing? even Credit Karma and Personal Capital are offering one now). As a broker, risk management is your job.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by SpicyLemonZest on Tuesday November 05, 2019 @01:14PM (#21454994)
I guess that makes sense.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by kccqzy on Tuesday November 05, 2019 @02:49PM (#21455954)
> it would be very bad PR for people to start thinking that they can lose a lot more than they put into their accounts

LOL WAT? If you are using the margin feature of your brokerage account it should be implicit that you understand you will lose more money than you have. Many people have bankrupted even due to a temporary fluctuation in pricing causing margin calls. This is true even if you don't trade options, just less likely so.

Personally I trade options but I don't enable the margin feature on my account. Then the worst case scenario is I lose everything I put into the account; I wouldn't lose the money I didn't put in my account.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by jacquesm on Tuesday November 05, 2019 @03:11PM (#21456148)
> will

Can. It is isn't a certainty for those that understand, but if you don't understand that will is probably correct.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by perl4ever on Tuesday November 05, 2019 @10:15PM (#21459441)
Well, it's not normal to lose more money than you have, even if you are investing on margin, because obviously that creates risk for the people you owe that they don't want. That's why there are minimum equity requirements and your positions can be liquidated without even a margin call if necessary.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by koolba on Tuesday November 05, 2019 @03:00PM (#21456039)
It’s not implicit, it’s explicit in the margin agreement you sign to create or extend the account.

You’re also on the hook for any excess losses that are not covered by cash in the account. They can and will go after the rest of your external assets.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by jjeaff on Tuesday November 05, 2019 @01:20PM (#21455072)
Are we talking 18-19 yr old teenagers? Because anything less and they shouldn't be able to have an account on their own. And of they do, then Robinhood would be sol. You can't enforce a contract on a minor. (although, interestingly, a minor can enforce a contract on an adult)
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by LandR on Tuesday November 05, 2019 @05:44PM (#21457567)
Is 18-19 considered a minor in the US?
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by bnjms on Wednesday November 06, 2019 @02:54AM (#21460545)
No. Age < 18 is considered a minor. Everyone on r/wsb calls each other autists and uses old 4chan slang like teenagers. I think some of the guys who caused Robinhood to change their system were minors.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by hailwren on Tuesday November 05, 2019 @12:54PM (#21454760)
Even if Robinhood goes after them, they don’t have any assets or money. Unless there are criminal charges (which there might be), what could actually happen?
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by eigenvalue on Tuesday November 05, 2019 @12:56PM (#21454785)
They could win a legal judgement that might not be able to be discharged in bankruptcy. Even if they can't pay it now, they might have their wages garnished in the future until it is repaid. Also, if they are minors, their parents might pay it to avoid their kid's credit being ruined for decades because of bankruptcy.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by sethammons on Tuesday November 05, 2019 @01:03PM (#21454863)
bankruptcy should only be on your record for 7-10 years. And a minor can't be held accountable to any kind of contract. I would think that first, RobinHood would be outta luck. Secondly, the kid. Lastly, the parent. As a parent, I would tell my kid "sorry bucko, you don't get to buy a car for the next decade."
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by toomuchtodo on Tuesday November 05, 2019 @01:05PM (#21454889)
Bankruptcy is not as bad as everyone makes it out to be. You can get an FHA mortgage 1-2 years (depending on circumstances) after the discharge date. You can get a non-QM (not Fannie/Freddie/FHA backed) loan the next day at a higher interest rate (~200-300 basis points above prime), which you're only going to carry for two years until you can FHA refi. You'll get a secured credit card. You'll pay more for an auto loan. But you'll get credit nevertheless because you can't go BK again for another 7 years. You will pay more for that credit, but you will still get it. Walking away from certain levels of dischargeable debt is entirely reasonable. That is why we have bankruptcy as a financial tool.

Some states are better about protections against creditors than others. Don't live in a state with poor creditor protections (Florida is fantastic, Missouri is terrible).

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by edoceo on Tuesday November 05, 2019 @01:21PM (#21455090)
200-300 basis-points means 2-3% (for the non-finance types).

So your 6% loan is now a 9% loan.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by MikeHolman on Tuesday November 05, 2019 @02:32PM (#21455785)
An 18 year old isn't getting a mortgage. They probably won't be able to afford a home for the next 7 years anyway. They might have a rough time getting a reasonable car loan and opt to instead buy a used car with cash, but that isn't the end of the world.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by goobynight on Tuesday November 05, 2019 @03:44PM (#21456471)
Making a high risk play and maybe going bankrupt at 18 might even be a dominant strategy.

I never used credit from 18-25 aside from churning some credit cards.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by 55555 on Tuesday November 05, 2019 @07:34PM (#21458558)
It sounds to me like this is the dominant strategy for many people who dont use the traditional credit system much and are young and have no assets. You get a 1 in 20 chance of a million dollars and in 19 of 20 cases you go bankrupt. Seems like a extremely +EV deal.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by ericd on Tuesday November 05, 2019 @03:45PM (#21456485)
Not only not the end of the world, it’s a much more sound financial move :-).
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by toomuchtodo on Tuesday November 05, 2019 @01:22PM (#21455101)
Prime mortgages hover around ~3-4.5% currently. Non-QM is ~5.5-8 percent, looking at a non-QM lender's rate sheet right now (dependent on loan to value, assets, and income). So about what you'd pay for a HELOC or higher rate home equity loan. Even with garbage credit you're not paying 9% on a property that you've got some equity in, but you're not getting a mortgage with only 3% down (nor should you; go rent for a year or two with a landlord who will report positive payment activity to CRAs and then go get your federally backed FHA loan with only 3% down).
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by edoceo on Tuesday November 05, 2019 @04:18PM (#21456809)
I was just using 6 & 9 as example values from the ether (maybe Hendrix) - not in reference to any specific loan type.

And yes, Prime is low today.

Also, if you can make a play for real property: buy dirt. It's a good financial play to build equity/wealth.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by perl4ever on Tuesday November 05, 2019 @10:19PM (#21459462)
This is a one-dimensional way of looking at things. I have a high credit score, never had a late payment in my life, but couldn't get a mortgage for any amount because I'm working for a temp agency.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by toomuchtodo on Wednesday November 06, 2019 @12:15AM (#21459913)
Do you not have 2 years of W2 or 1099 income? With either, an FHA loan should be no problem, or even a Fannie or Freddie backed loan with mortgage insurance baked into the interest rate.

Income and assets are king when underwriting a mortgage, credit less so (depending on investor desires of the mortgage backed securities).

https://www.hud.gov/sites/documents/4155-1_4_SECD.PDF (FHA Guidelines: Borrower Employment and Employment Related Income)

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by perl4ever on Wednesday November 06, 2019 @11:34PM (#21470413)
Well, let's put it this way - I have less than 2 years of lack of W-2 income. But yeah, you are reiterating my point, that credit score isn't necessarily what everything is based on. And what I was also thinking, is that I would not charge into bankruptcy assuming I knew what the consequences are. Everybody says you can get credit right afterwards, but I think "yeah, and that means they think you're a good risk for some reason other than your personal habits of paying debts, which sounds ominous".
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by SpelingBeeChamp on Sunday November 10, 2019 @02:05AM (#21496837)
Meaning what? They're gonna break your shins?
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by sharemywin on Tuesday November 05, 2019 @01:20PM (#21455070)
don't forget prosper and lending club. although non-QM loans generally require 20-30% down.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by Waterluvian on Tuesday November 05, 2019 @12:57PM (#21454793)
I think this is called being judgment proof. I think robinhood gains nothing other than forcing bankruptcy upon them?
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by CPLX on Tuesday November 05, 2019 @03:00PM (#21456038)
A million YouTube views is worth a couple grand right?

Maybe there's an upside for this guy after all. 2019 is weird.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by Jhsto on Tuesday November 05, 2019 @04:34PM (#21456948)
Much depends on the ad network. The default YouTube one, which is essentially the only network you can easily get into with a single video, paid me 23 cents CPM for video-game genre.
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by Itsdijital on Tuesday November 05, 2019 @07:16PM (#21458430)
You need 1k subs to monetize
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by Havoc on Wednesday November 06, 2019 @06:20AM (#21461474)
>It will be interesting to see if Robinhood will go after (i.e., pursue claims in court) teenagers who get carried away and rack up $50k+ deficits from this.

The PR would be a disaster.

Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by mindslight on Tuesday November 05, 2019 @02:37PM (#21455849)
I'd expect the gamblers will simply be bailed out. That is the precedent from 2008, is it not?
Re:Robinhood Traders Discovered a Glitch That Gave Them ‘Inf... by kpU8efre7r on Tuesday November 05, 2019 @10:18PM (#21459453)
FDs all day!