trading-shim Frequently Asked Questions
Certain recurring questions tend to come up in mailing list and support
contexts; the links below address or point to further resources about
the most common areas of inquiry. Show Categories
Accounts at IB to test with
Weekend testing is hard
Interactive Brokers servers need backup and maintenance; their
developers need testing time 'windows'.
Also the industry regularly schedules
new feature, disaster recovery,
and settlement testing (between multiple vendors)
on the weekend.
As such, only the general and simulated data 'demo' accounts are of
available for developer and testing use between close of
markets Friday (US Eastern time zone), and
the return of production servers around
mid-day Sunday (same time zone offset). IB publishes availability times for
their servers, and in our experience have declined authentication outside
of the 'business' part of the week.
Demo testing accounts
Demo testing account login information for IB 'demo' accounts is
Just to be clear, the data provided from the 'demo' accounts is not
real, and does NOT have any use for back testing or strategy development
or as history, as it seems entirely synthetic.
The 'paper' add on account which is available to real account holders does
return real data.