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TWS "Latest" auto-installed a version *978.1j* this morning, which sounds like a roll back of the *979.3e* "Latest" build that broke everything (including order submission via Excel legacy DDE API). I

What programming language are you using? Generally speaking the errors 509 and 504 "exception caught while reading socket" happen when your program stomps on the memory space in error. The fastest

Just FYI, I've contacted the API Support and here the answer I've got: ''' The existing request may not have terminated. When bust event occurs please try using cancelRealTimeBars() then call

ticket opened: https://github.com/InteractiveBrokers/tws-api/issues/918 and it was fixed in: https://github.com/InteractiveBrokers/tws-api/pull/919

Where can I find a definitive list of Exchange Codes returned by?tickByTickAllLast? Thanks.

Hello, this is just FYI.? ? My process started crashing recently when it tried to connect to TWS.? I have two threads each running its own instance of the ib client.? To fix, I had modified

Any idea what causes this? I also get this one: Error. Id: -1, Code: 509, Msg: Exception caught while reading socket - Numerical result out of range I found this similar thread:

Robbo: still valid if subscribed to Horizon Wall Streets as Josh pointed out. C# example: public void fundamentalData(int reqId, string data) { try { string ticker = XMLstringExtract(data,

If IB meets your needs, then that's great, but in addition to the other suggestions you could try IQFeed.

You might also look at these providers: http://www.eoddata.com/ https://www.tiingo.com/ https://www.alphavantage.co/ https://eodhistoricaldata.com/

I'm also using Yahoo for quotes from the US and from Japan. For the LSE I have bad experience with Yahoos data and I use IB's instead.

For some years I have been running two ActiveX Excel spreadsheets in VBA simultaneously and have been able to run one spreadsheet as a kind of slave from the other using the "Application.Run" function

I take over 1k end of day quotes from yahoo. There is a yahoo finance library/api that can be used from .net. Sent from ProtonMail mobile

To be clear, reqHistoricalData works - within the context of what data IB provides. It may be that you need more data than IB provides or need it faster, but to make a blanket statement that IB's

I am still trying to get some sense from this reqHistoricalData. Sure I shall as soon as I have some sensible data getting populated using IB. At this stage I do not recommend IB. I do not know about

Thanks Adam. Could you please suggest a historical data provider? Yes I agree, I am facing lots of issues if I wish to develop a strategy with the help from reqHistoricalData. I require close, open

It is not worth using IB for historical data for a large number of symbols if you want to do backtesting analysis, unless you are trying to use some unusual international exchanges where the

IB is a broker and supplies data for 'typical' retail use. If you have needs beyond what IB provides then you'll have to find a dedicated data provider that has what you need.

Robinson: would you mind pasting the code you use to download monthly historical data using reqHistoricalData? The smaller the amount of code to read basic data, the better. I was thinking about using

Thanks, just the downside is that it takes almost 3 hours to just run NASDAQ stocks with reqHistoricalData I require for different time frames such as monthly, weekly and daily time frames. The hours