Probably, someone else before me noticed that peculiar behaviour but I have not found any thread with a relevant title.

Anyway, here is the case. I have attached a screenshot which displays the number of shares that have been bought and sold for 07.02.2020 of Square Enix Holdings. Here is the link->>>interval 1d

As it can be observed volume value for the whole day is 1.53M.

However, if interval is changed to 1H instead of 1D the following volume values hours-wise are displayed:

2/7 9 AM: 515.8K
2/7 10 AM: 229.1K
2/7 11 AM: No volume at all
2/7 12 PM: 942.4K
2/7 1 PM: 236.6K
2/7 2 PM: 1.56M

If to sum it up, then the final value is 2.97 M.

It would be great if someone clarifies it to me.

Thanks in advance.


Regular trading hours for this stock on its primary exchange (in Tokyo) are from 09:00 JST - 11:30 JST, then it closes for 1 hour, then it reopens and trades from 12:30 JST - 15:00 JST. On top of that, trading runs continuously from 08:00 JST - 16:00 JST on non-primary exchanges.

1.53M is the volume according to the primary exchange (link below). The hourly data being displayed by Yahoo is a combination of primary and non-primary exchanges. The 11 a.m. hour is blank because the stock closes temporarily from 11:30 to 12:30 -- this is obviously wrong yet this is how Yahoo reports it nevertheless.

It is probably a better idea for you to look for another data source. Looking through this post might be a good place to start: What data sources are available online?

You can find data from the primary exchange here: Japan Exchange Group

  • $\begingroup$ Thank you very much for the reply! If it is not hard for you, could you please send to me a link where non-primary exchanges are explained as googling I have not succeed to find a decent explanation $\endgroup$ – user641597 Feb 13 '20 at 14:36
  • $\begingroup$ Or ”non-primary” means secondary? If yes, then no need to provide me with anything. $\endgroup$ – user641597 Feb 13 '20 at 14:49
  • $\begingroup$ @user641597 non-prinary would be exchanges other than the primary listing exchange. For example, an NYSE listed company can have volume on other exchanges like IEX or Nasdaq $\endgroup$ – amdopt Feb 13 '20 at 15:36
  • $\begingroup$ Hi, thanks again. $\endgroup$ – user641597 Feb 14 '20 at 11:18
  • $\begingroup$ However, how do these shares end up on none-primary exchanges? I know there are few dual-listed companies, such as Yandex, which stocks are traded in Moscow Stock Exchange and on Nasdaq. So is Moscow Exchange considered as none-primary? And how can I find volume data regarding these none-primary exchanges in Square Enix example? Anyway, thanks for your replies! $\endgroup$ – user641597 Feb 14 '20 at 11:33

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.