Why am I encountering unrecognized property 'expiry' error while accessing the contact data?

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MathWorks Support Team
编辑： MathWorks Support Team 2021-5-19
Why am I encountering unrecognized property 'expiry' error while accessing the contact data?
I am trying to create a contract and get the Interactive Brokers data, but I am encountering the following error messages for the below code snippet:
>> ibs = ibtws('',7496);
>> pause(1);
>> ibContractData = ibs.Handle.createContract;
>> ibContractData.symbol = 'EUR';
>> ibContractData.secType = 'FUT';
>> ibContractData.exchange = 'GLOBEX';
>> ibContractData.expiry='201806';
>> ibContractData.currency = 'USD';
>> rtd=getdata(ibs,ibContractData)
>> close(ibs);
Unrecognized property 'expiry' for class 'Interface.AE6A66F3_8FA9_4076_9C1F_3728B10A4CC7'.
Error in Untitled (line 9)
ibContractData.expiry='201806';

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采纳的回答

MathWorks Support Team
You are encountering the error messages because there is no "expiry" property for the "ibContractData".
To resolve this issue, you need to use the property "LastTradeDateOrContractMonth" as follows:
>> ibContractData.LastTradeDateOrContractMonth = '201806';

更多回答（1 个）

Yair Altman
Yair Altman 2018-6-29
编辑：MathWorks Support Team 2021-5-19
IB renamed the Expiry property to "LastTradingDay" or "LastTradeDateOrContractMonth" (depending on the specific use-case) in its API release 9.72 (use with TWS version 959 or higher): https://www.interactivebrokers.com/en/index.php?f=23565#972-10
Yair Altman
https://undocumentedmatlab.com/matlab/wp-content/cache/all/IB-Matlab/index.html

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