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The 3 Billion Dollar Typo

Rand310 writes "Mizuho, the world's second largest bank based in Japan, with total assets of nearly the GDP of France (around 1.2 trillion USD) accidentally sold 610,000 shares, valued at $3.1 billion... for 1 yen each. A 27 billion yen loss would almost match Mizuho Securities' group net profit of 28.1 billion yen for the financial year ended in March, though... the incident would not threaten the brokerage's financial stability. FYI 1 yen is about .83 cents. Yesterday one share was selling at $5,065, today you could theoretically have bought 610,000 shares for $.0083 each. An expensive switch of variables."

41 of 398 comments (clear)

  1. Would be nice, but not really... by KingSkippus · · Score: 5, Informative

    No, the shares weren't actually sold for 1 yen each. From TFA:

    No buyer was actually able to pick up the phantom shares for 1 yen due to market rules designed to limit price fluctuations, but the shares may have gone as cheaply as 572,000 yen ($4,750) each, a more than 9 percent discount to the intended sale price.

    Selling the shares for 572,000 yen is where the 27 billion yen figure came from, not selling them for 1 yen.

    Also...

    ...you could theoretically have bought 610,000 shares for $.0083.

    Aside from the fact that you couldn't have theoretically bought the shares because of market safeguards already mentioned, that sentence is missing a very important word: 610,000 shares for $.0083 each.

    Still, it would have been one helluva holiday sale, wouldn't it?

    The other thing I thought was interesting was from the other article. It said:

    The accidental order was 42 times bigger than the number of issued shares, but a computer warning of the misplaced order was overlooked.

    How much yen do you want to bet that it's one of those stupid "Are you sure?" dialog boxes that everyone clicks "Yes" to without actually thinking about what it's asking? Ah, how I love ignoring those warnings, too.

    1. Re:Would be nice, but not really... by 110010001000 · · Score: 5, Informative

      Yes, but if Slashdot was more accurate it would be less dramatic. The idea is to increase pageviews by posting hyped and controversial "stories" in order to increase revenue. This was probably a policy instituted by upper management to help the flagging LNUX (Slashdots parent company) stock price.

      Haven't you noticed that as the stock price goes down, the hysteria on the front page goes up? Anything to make a buck!

    2. Re:Would be nice, but not really... by 91degrees · · Score: 5, Insightful

      How much yen do you want to bet that it's one of those stupid "Are you sure?" dialog boxes that everyone clicks "Yes" to without actually thinking about what it's asking? Ah, how I love ignoring those warnings, too.

      It's a constant grip of mine. I hate unneccesary confirmation dialogs (the result being I hate alost all of them). I can just about tolerate "This will overwrite a file", or "Save before quit" ones, but I keep running across designers who think insist on using modal dialogs for feedback. "You have just pressed a key. OK/Cancel". I make a point of querying this behaviour any time a designer comes up with it.

    3. Re:Would be nice, but not really... by fossa · · Score: 4, Insightful

      Yup. As others have pointed out, this is yet another usability problem. If one simply mistake can cause so much damage, then it should raise a warning flag. Which it did, but apparently the warning flag was utterly useless. Silly "ok/cancel" dialogs are not enough to cause the user to stop and think about what he is doing. If such dialogs were correctly implemented, they would be extremely annoying which would lead to two things: 1) it'd be much more unlikely to make a mistake and 2) as another poster pointed out, almost *all* such dialogs are for something minor (do you really want to quit??) and better safeguarded against in some other way (e.g. "undo"), and thus would [hopefully] quickly disappear if they must be extremely annoying rather than merely annoying.

      Raskin's suggestion for a dialog that would work is something like: "You are about to perform dangerous and undoable action X. If you wish to proceed, type 'Yes, perform action X' followed by the [11th] word of this sentance." You'd be asked to type a different word each time so you could not memorize it and learn to confirm the action without thinking. Highly obnoxious, yes. Hopefully designers would learn to only make use of it when absolutely necessary.

      P.S. I'd just like to say that Firefox without the SessionSaver extension is painful. Why on earth isn't SessionSaver included by default? "You have 9 tabs open that took you many hours to arrange. Close them all forever: yes/no?". And if something crashes, you don't even get the annoying dialog...

    4. Re:Would be nice, but not really... by jjapan · · Score: 5, Informative

      Actually the message box is rather large and declares the error very clearly. In addition it shows the details of what the action will do. Whoever did this really was either not watching or was using the safety net to enable some friends to make a killing. The news here interviewed day traders who made a lot of money on this deal. The blip lasted for about 3 minutes and was jumped on very quickly. The day traders referred to it as a "Christmas present". Investigation going on now. Be interesting to see what turns up.

    5. Re:Would be nice, but not really... by maxwell+demon · · Score: 4, Funny

      Are you sure you wanted
      to press the "Ok" button
      on the "Are you sure"
      dialog box?

        [ OK ]    [ Cancel ]

      --
      The Tao of math: The numbers you can count are not the real numbers.
    6. Re:Would be nice, but not really... by Anonymous Coward · · Score: 5, Funny

      That's very interesting.

    7. Re:Would be nice, but not really... by 91degrees · · Score: 3, Interesting

      It's not about displaying this error. It's about displaying non errors. If you see too many dialogue boxes then they lose their significance, and people get lazy and click through them without reading them. I know I don't. I even had to close a window to find out what the buttons said when you do that. This is just human nature. UI design needs to cope with human nature.

    8. Re:Would be nice, but not really... by d99-sbr · · Score: 3, Funny

      Is this supposed to be some kind of cliffhanger?

    9. Re:Would be nice, but not really... by Anopheles · · Score: 4, Interesting

      The ones that REALLY piss me off are the ones for Windows patches. If you install an update that "requires" a reboot, and you hit "reboot later", it will nag you (by popping up another modal box with the same question) every 3 minutes. And there's no "cancel" or "stop annoying me" button. You can't stop the nagging.

      What's worse is that the default button on this dialog box is the "Reboot now" button.

      So I'll be typing in an email or a posting to something, and after 3 minutes are up, it will suddenly pop up the nagbox into the foreground, just in time for me to hit spacebar after finishing a word. In a blink of an eye, the computer forces every program to end without prompting to save and reboots...

      I can understand and can live with crashes. but that... That behavior was PLANNED.

    10. Re:Would be nice, but not really... by SuperBigGulp · · Score: 3, Funny

      I think you mis-spelled, "This one time, in band camp...."

      --
      Someday a Slashdot ID of 177180 will mean something.
    11. Re:Would be nice, but not really... by qray · · Score: 3, Interesting

      What I really hate is the way Windows allows a background application to interrupt a foreground application. I'm happily typing on along in my favorite editor when something hidden demands attention via a message box. Unfortunately that time I'm typing and I often hit a key that maps to a button or otherwise dismisses the dialog. Leaving me wondering what the heck did I just answer.

      Was it asking, "Would you like to format your hard drive?" or "Press OK to transfer all your bank account funds to Joe Smith.".

      This has been a problem for ages on Windows, and I can't believe they have yet to address it. A simple fix would be to create a brief quiet period that would allow the user to react and stop typing and respond.
      --
      Q

    12. Re:Would be nice, but not really... by bleckywelcky · · Score: 3, Funny

      And besides that, you have me wondering whether I should answer "OK" or "Cancel" to a question that is asking for a "Yes" or "No" answer.

      Seriously, wtf does "OK" mean in response to the question "Are you sure you want to take this action?" What if you went to the grocery store and the clerk asked if you needed help carrying your bags to your car and you responded "Cancel" ... they would be like wtf?

  2. Data Validation by ||Plazm|| · · Score: 5, Insightful

    I wonder how many times the person(s) hit "Yes I am sure" when the system was telling them not to do it...

    1. Re:Data Validation by Kadin2048 · · Score: 4, Funny

      Well based on the photo that MSN decided to run with on its article, apparently people at the Tokyo stock exchange have a special, Solitare-based GUI for doing stock trades:

      http://www.msnbc.msn.com/id/10394551/

      This image:
      http://msnbcmedia.msn.com/j/ap/tok11012090345.hmed ium.jpg

      --
      "Ladies and gentlemen, my killbot features Lotus Notes and a machine gun. It is the finest available."
    2. Re:Data Validation by madaxe42 · · Score: 4, Interesting

      Actually it's a market depth view. Each column displays the buy and sell side of the market, and the associated depth & volumes.

  3. Hmm... misleading post? by LordPhantom · · Score: 5, Insightful

    From TFA..... No buyer was actually able to pick up the phantom shares for 1 yen due to market rules designed to limit price fluctuations, but the shares may have gone as cheaply as 572,000 yen ($4,750) each, a more than 9 percent discount to the intended sale price. .... Mizuho's error has so far cost the broker some 27 billion yen ($224 million), Fukuda estimated. It appears that, in fact, they didn't lose BILLIONS but a few millions. Still large, but the post is misleading.

  4. 1 BILLION Shares! Muuuahhahaahahahaha by mpapet · · Score: 4, Funny

    FTFA "The sell order, which was more than the available shares, somehow went through the TSE system.

    That to me is much more disturbing.

    I just wonder who's going to get the blame, IT or the software vendor?

    --
    http://www.maxineudall.com/2010/02/should-economists-be-sued-for-malpractice.html
  5. May also not even be true by Anonymous Coward · · Score: 3, Insightful

    As someone else pointed out Not On Slashdot, something like this has been reported before. 4 years before, in fact. Note that the number & price of the shares in each report are 610,000 shares at 1 yen each.

    Now, what do you think that chances of this happening twice are? Yeah, that's what I thought.

  6. You've got to admire the Mizuho execs... by The+Angry+Mick · · Score: 5, Interesting

    The company made a horrendous mistake and yet, there you see two executives bowing apologetically and taking responsibility on the day it happened .

    I have to wonder how a U.S. bank would have handled such a mistake?

    --

    I'm not tense. I'm just terribly, terribly, alert.

    1. Re:You've got to admire the Mizuho execs... by Valiss · · Score: 5, Funny

      The company made a horrendous mistake and yet, there you see two executives bowing apologetically and taking responsibility on the day it happened .

      I have to wonder how a U.S. bank would have handled such a mistake?


      Well, I can tell you it wouldn't be the company execs who would be bending over...

      --

      -Valiss
    2. Re:You've got to admire the Mizuho execs... by pubjames · · Score: 4, Insightful

      We Americans, though, are FAR more concerned with pointing the finger at someone and punishing them into oblivion.

      A lesson I learnt from a former boss: Someone screwed-up bigtime on a project, potentially costing us an important client. They realised their mistake and told the boss. The boss didn't explode, shout, or fire the employee, he just very calmy asked that everyone help to rescue as much as we could from the situation. When I spoke to him later about it, he said that it would have been counter productive to blame someone who new they had made a mistake and probably felt very bad about it. In my book, that's a good people manager.

    3. Re:You've got to admire the Mizuho execs... by xenocide2 · · Score: 3, Insightful

      The difference is that when a US exec screws up at this magnitude, reguardless of how much apologizing happens, they will be canned in the very near future. They also will face a very likely suit in court for defrauding investors. In Japan, it seems businessmen apologize for everything, yet very little gets fixed. I guess I'd understand the culture more if I lived there for long enough, but it seems a bit strange to me.

      Don't take this as a defense of American corporate ethos, or a criticism of Japanese ones, though. The two countries simply have different Zeitgeists. For whatever reasons the massive conglomerates that dominate Japan are never upset by newer competition. What I've yet to discover, is whether the privitization of Japan Post is a signal that the day of ruling families is over, or whether it's a signal that the government will no longer compete with them.

      --
      I Browse at +4 Flamebait

      Open Source Sysadmin

    4. Re:You've got to admire the Mizuho execs... by HardCase · · Score: 4, Interesting

      Something very similar happened to me in a previous job. I made a mistake that cost the company several thousand dollars and had the potential to alienate a good customer. I told my boss what I did and we decided what to do to fix it. His boss wanted me fired. My boss' response was to tell her that the way that he saw it, the company had just provided me with several thousand dollars worth of training and he wasn't about to throw that investment away.

      I guess it worked out - my boss retired a year or so later and I got his job. And it's a lesson that I've never forgotten (and, fortunately, only had to use once).

      -h-

    5. Re:You've got to admire the Mizuho execs... by symbolic · · Score: 3, Interesting

      No, today when a U.S. exec screws up bigtime, he gets a fat bonus and maybe a nice golden parachute.

      Here's an article that focuses on these very kinds of problems in the music industry: http://www.indie-music.com/modules.php?name=News&f ile=article&sid=3906

      You might find this particular passage of interest:

      A few years ago at a party, I asked a CEO of a major label why this practice seemed so prevalent at the top executive levels of the music & film industries and the response was astounding. He said, "What you have to understand about the decisions to hire executives at that level, is that very often the boards of the company hiring them are much more comfortable with someone who's already had the position and done the job regardless of their past track record than someone they don't know regardless of their ability!"

      This problem is endemic not just in the music industry, but in almost every sector. With all the fat perks, it's almost set up so that bad performance is completely inconsequential.

  7. Bust those trades by seniorcoder · · Score: 4, Informative

    Most exchanges will call the members who have accidentally benefited from another member's mistake and ask them politely to agree to void the deal. Although not obligated to do so, most brokerages typically honor this request as they have to assume that they will be the next ones to make a mistake.

  8. Re:This brings a WHOLE new meaning... by JonTurner · · Score: 5, Funny

    >>I wonder which online deal site this was posted on first?

    FuckedCompany.com

  9. Scary forms by jfengel · · Score: 3, Interesting

    A few weeks ago I engaged in some slightly complicated stock transactions, where I sold a company short then issued an order to buy it back if it rose to a certain price (in case it rose unexpectedly). Before I punched the "confirm" button I spent rather a long time making sure that I was saying "Only buy it when it hits that price" not "Offer to buy it at that price", which would have resulted in a huge loss for me.

    This guy's problem was presumably different; he knew what the forms meant but entered the wrong numbers. Still, it's kind of scary to be looking at a computer screen and thinking, "I hope this is right, or it's REALLY gonna suck."

  10. Wasn't $3 billion...and wasn't a typo, either by dmccarty · · Score: 3, Informative
    Apparently not even the submitters are reading the articles these days...oh well.

    For anyont who RTFA'd, 610,000 shares at 1Y were offered, not bought. The error so far has cost about $224 million, and may eventually cost $250 million. That's a huge cost for a trader error, but it's not $3 billion.

    And I don't think this qualifies as a typo. How about "data entry error"? Or how about software bug, since the number of shares sold was more than the number of available shares.

    --
    Have fun: Join D.N.A. (National Dyslexics Association)
  11. Re:Use http://www.xe.com/ucc by Minwee · · Score: 4, Funny

    Congratulations, you may have what it takes to be an editor here.

  12. New conversion! by Lord_Slepnir · · Score: 4, Funny

    In addition to a Megabytes -> Library of congresses conversion, we now have a conversion of Frances to USD. I make 4.5833e-8 Frances last year!

  13. Re:Give them my number by generic-man · · Score: 4, Informative

    From Mainichi News: "The accidental order was 42 times bigger than the number of issued shares, but a computer warning of the misplaced order was overlooked." (emphasis mine)

    --
    For more information, click here.
  14. Trading typos are hardly that rare... by The+Grassy+Knoll · · Score: 4, Interesting

    A Lehmann Brothers trader keyed in a £300m sell instead of £3m in 2001 and cost the company £20,000 (in fines, cos he moved the FTSE downwards with such a large sell order).

    And a Bear Stearns employee typed in $4bn instead of $4m in 2002, again moving the index (thsi time the Dow Jones) down.

    Mostly though these positions are unwound by agreement between the parties. I don't understand why that didn't apply here.

    .

    --
    They will never know the simple pleasure of a monkey knife fight
  15. Re:Give them my number by Gordonjcp · · Score: 3, Insightful

    I know that obnoxious "Are you sure?" messages are just a bloody nuisance, but maybe a kind of "smart" version would be good.

    In this case, it would spot that you were about to do something *very* odd, and print:
    "Are you sure?"
    'Y'
    "Are you *really* sure?"
    'Y'
    "Ok, so what are you so sure you want to do?"
    '... uhm'

  16. Re:Error prevention? by vertinox · · Score: 3, Funny

    Surely there was some kind of trigger in the software that would detect these kind of errors! Windows asks if im sure when I try to delete a file and even then it only sends to to the recyle bin!

    He was holding down the shift key.

    --
    "I am the king of the Romans, and am superior to rules of grammar!"
    -Sigismund, Holy Roman Emperor (1368-1437)
  17. Re:The End Of Slashdot by The+employee+can+cho · · Score: 4, Insightful

    Then why are you still here?

  18. Re:The End Of Slashdot by fallen1 · · Score: 4, Insightful

    You know, all of the people posting on Slashdot about how "Digg is the future" are completely full of shit (not just singling you out Bombadier Beetle). What you seem to fail to realize (or, more likely, do realize and ignore in the hopes of someone responding to your troll [congrats! I'm responding :)]) is that the two sites serve genereally opposite purposes even though they are, technically, both tech-related sites. Slashdot is about having an in-depth conversation with peers and a chance to hear others take on the matter at hand. Digg is about seeing what hits the front page with high diggs and deciding "Do I want to read this story or not?" with, basically, no discussion.

    Now please go troll somewhere else - Slashdot has enough of them as it is. I hear that Digg is looking for more so go play in their yard.

    PS - I have Digg as one of my home pages on Firefox so I do check/read both sites so please no flames about "You don't know what you're talking about since you obviously don't dig Digg!"

    --

    Dream as if you'll live forever.
    Live as if you'll die tomorrow.
    ~Anonymous~

  19. So many errors, so little time ... by gordguide · · Score: 3, Informative

    " ... accidentally sold 610,000 shares, valued at $3.1 billion ... for 1 yen each. ..."
    No, they didn't.

    " ... A 27 billion yen loss ..."
    Huh? Nobody lost, or "won", anything. There were no trades at that price.

    " ... FYI 1 yen is about .83 cents. ..."
    This one, despite other posts to the contrary, is about right (today's rate is 0.00841 to the USD, or 0.841 yen = 1 cent). Considering the math proficiencey demonstrated so far, I'd give him a "close is good enough" checkmark on this question, to avoid the embarassing, and apparently inevitable, goose egg on his math final.

    " ... today you could theoretically have bought 610,000 shares for $.0083. ..."
    No you couldn't. And even if you could, you couldn't.

    The company doesn't have 600 thousand shares outstanding to sell, for one thing; share owners must agree to sell at that price for another.
    Pity the poor bastard who made a sell order "at market", though ;-).
    Market rules prohibited the trade from being completed, for another. And that's about $0.0083 per share, it would have cost you about $US 5130.10 plus brokerage fees at today's exchange rate.

    The short answer here, for those of you whose heads are exploding from the bad, bad Math and English Composition at work here, is some trader placed an order for one share, valued at around $5K, and made a mistake somehow.

    Instead of an offer of one share for that price, the order was entered as 610,000 shares for the price of one share. As it turns out, some shares were sold at a discount of 9% (ie $US 4,750 per share; ie some owners were willing to make a sell order "at market" ) because the market rules allowed that much of a price drop before trading restrictions or outright halts kicked in (the news stories don't say what the mechanism for price monitoring is or does, but obviously, it works).

  20. Re:Give them my number by mikolas · · Score: 3, Insightful

    So it seems they are using Windows. I think it's quite common to overlook all warnings after working with Windows for some time.

  21. Re:Give them my number by WormholeFiend · · Score: 3, Funny

    And I'm pretty sure someone did panic...

  22. Making mistakes by Clueless+Moron · · Score: 3, Insightful
    My boss at my first job had it all summed up:
    If you're not making mistakes, you're not learning.