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Today I am unable to request historical data on FX IDEAL from a paper trading account.? This hasn't ever been an issue before.? Last time I tried running the same script was a couple weeks ago and

Since the end of last year VIX options are trading almost 24/5. However I receive no market data outside the regular trading hours for neither the VIX index itself nor for the VIX options. Am I doing

Jürgen, Thanks for the great advice, I actually prefer the control of the direct API, I do not even use TWS's premade parent wrappers, I figured out the socket protocols. I actually manually

The most definitive description of the TWS inbound message rate limit is this short segment from the Limitations section ( https://interactivebrokers.github.io/tws-api/introduction.html#fifty_messages

I received a warning about 50 messages Max ( 49 ) then disconnected. But when I checked it API log, there weren't 50 messages sent, even if I added all the messages sent and received it did not add

In TWS, Global Settings, Presets, Stocks, Precautionary Setting there is a limit for the dollar amount and number of shares. There are defaults for the presets that are described in the field popup

I think I found the issue: there was a limit in TWS for 500 shares per order. Therefor the GUI requested authorization to override this limit, and the API request was stuck. It happend in ABEV and

My platform has quite a sophisticated contract cache. Each request and its results are cached (including negative results). Cache entries expire at the end of the day. Cached stuff includes contracts,

It only takes one incorrect contract id to ruin your whole week. I can't imagine taking that risk. If it's the difference between being able to implement your strategy and not, I would suggest

Not sure that there is any meaningful time you can save by caching contract ids, but most of them will be constant for extended periods of time. We have seen only very few symbols change their

Usually the conid of an instrument does not change. At least I never experienced it.

I'm thinking I could save some time by caching contract ID lookups for the same tickers and options that I query multiple times per week. Once a contract ID is assigned, does it ever change provided

Hi all in my current python app I get my earnings data from [hedging labs api] (https://www.hedginglab.com/static/csv-catalog) in my next generation tool I want to use as much data as IB can

Thanks for that. Good catch! I use TimeBeginPeriod in my platform, but there are few places where the timer resolution is critical, and I must admit I hadn't noticed any problem running on either

thank you for the information. It's a sensible approach and, as I am crafting a new tool, really helps guide my thinking. In this instance I just dropped the ball and the good denizens of this forum

As a matter of practice, our framework makes IBApi.EClient.reqContractDetails ( https://interactivebrokers.github.io/tws-api/classIBApi_1_1EClient.html#ade440c6db838b548594981d800ea5ca9 ) calls for

thank you, I'm going to remember to check the calendar in future :-)

I agree this group has ALWAYS been a bastion of good advice and well run.? I thanks for the extra info, more ammo when I need it. Got to learn more about the TWS interface, I just use the basics.

Goos Friday ,Easter Sunday Holidays in the USA

No worries. The point of the group is to help each other out. If your TWS has the option to show the up/down tick dots, they turn grey when market is closed and the pop-up text changes to Trading