Hi, what is the earliest data point when using interactive brokers with Trading Toolbox of MATLAB

I wrote the code:

%% Interactive Brokers Historical Data Workflow Example

StartDateSimStr='01/01/1995';

formatIn='dd/mm/yyyy';

StartDateSimNum=datenum(StartDateSimStr,formatIn);

% Connect to Interactive Brokers Trader Workstation

ib = ibtws('',7496);

% Create contract and request historical data:

ibContract = ib.Handle.createContract;

ibContract.symbol = 'SPX' ;

ibContract.secType = 'IND';

ibContract.exchange = 'CBOE';

ibContract.currency = 'USD';

 d = ib.history(ibContract,StartDateSimNum,floor(now));

close(ib)

But I got the historical Data only from 04/03/2004 Why ??

Answer 1

[Yair Altman]

IB imposes historical data limitations based on various aspects, including the requested bar size and your specific account subscription and parameters.

These limitations are imposed by the IB server, so asking for an earlier date will not work unless you also specify an end-date that is earlier than today. It will also not matter if you try to switch to another connector that uses IB's API (for example, my IB-Matlab connector).

Yair Altman

http://UndocumentedMatlab.com