I tried IBGateway (latest) and I did not get the Unknown Contract error but it would not load any data before 5th June 2018.

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I completely deleted my TWS and re-installed it, taking care to switch off download layout from server so I had a fresh install. Same situation i.e. no Unknown Contract error, but also no data loading before 5th June 2018. The charts also have the same "break" and missing data before 5th June 2018.

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My reqHistoricalData() is loading 1 day on 1 minute bars. Asking for TRADES and RTH = true and keepUpToDate = FALSE. These parameters work on SPY, DIA and IWM with no problems.

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@Jurgen, what parameters are you using for your reqHistoricalData() call?? Also, do you have any trouble with the QQQ chart before June '18?

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The only other difference I can see is the Windows vs Linux. I can try to run from my Linux environment and see what happens.

First, thanks for all your suggestions. Let me answer those suggestions:

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Orionn:

Have you tried "SMART/NASDAQ" or "SMART/ISLAND" in the exchange field ??

Are you setting only the security type, exchange, symbol and currency fields ??

Are you setting the symbol or local symbol field ?

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Yes, both NASDAQ and ISLAND, switching on and off compatible mode. It did not work.

Normally I use reqContractDetails() to get the contract like Jurgen suggested but I was running out of ideas so started setting the contract manually in case the ConID had changed at some point. Nothing worked.

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Are you able to open a 1 minute chart of QQQ in TWS going back to more than 6 years from now ?

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This is where it gets weird. I tried to open a 1 minute chart and the data stops at 5th June 2018. However, there was data showing before it at what ever date/time I moved the chart back to. If you moved the mouse over the break it jumps from the start date to 5th June 2018. I am adding a pic so you can see what I mean. See on bottom left of screenshot the date is 4th Jan 2010 as that is what I set the chart date at. You can see the break and the next date being 5th June (it is actually 2018, take my word for it).

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I stepped the 1 minute chart backwards from around that time in June and sure enough, the chart threw the error UNKNOWN CONTRACT. See below (look at the top left for the error).

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Jurgen

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As mentioned above, I usually use the contract returned by reqContractDetails(). The manual attempt was frustration and the last resort of a 'drowning man'!

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I have tried Demo Account and Live Account and both are the same. I have yet to try the IBGateway. @Jurgen, were you using your code connected to TWS or IBGateway?

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Is there some reason my version of TWS would be acting this way? As far as I know the data is not stored locally on the PC so not sure why it might impact.

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Could someone else try to get a 1 minute chart of QQQ at this timeframe and see if they get this error?

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My TWS version is:

Build 10.33.1f, Jan 27, 2025 3:58:40 PM

Jolt Build 1.18.12, Sep 5, 2024 06:57:46 PM

Nia Build 2.25.8, Jan 3, 2025 05:52:02 PM

ModelNav Build 1.13.2, Jan 24, 2022 04:59:21 PM

Riskfeed Build 2.46.0, Dec 3, 2024 05:33:36 PM ?

Java Version: 1.8.0_202,

OS: Windows 10 (amd64, 10.0),

Memory: heap max 4096Mb, current 294Mb?

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Recently I have been trying to backtest a new strategy using 1 minute bars. I was able to get 10 years worth of 1 minute data for SPY, IWM and DIA but not for QQQ. The longest I can get for QQQ is ~6 years.

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For older dates the reqHistoricalData() call comes back with a strange error :? "Unrecognised Contract".

Does anyone know why this is?

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Note I tried, SMART, ISLAND, NASDAQ as the exchanges and all came back with the same issue.

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Wondering if it is a temporary glitch or a genuine problem and I will not be able to get data that far back for QQQ.

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Any input would be helpful.

Hello Folks,

While sending a modification request for an existing confirmed order, I am receiving the following callbacks related to that specific order ID:

• OpenOrder
• OrderStatus
• Error: "Order rejected - Reason: Invalid Price"

Upon sending the order modification request and subsequently receiving the OrderStatus callback, how can I ensure that the OrderStatus callback pertains to the modified order? In the example above, it was not related to the modified order.

Thanks.

That’s not quite right.

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‘Time’ is NOT a VBA function: it’s a property of the VBA DateTime module (you can see this using the ObjectBrowser). It returns a variant with a vbDate variant type.

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Property names CAN be re-used as variable names (unlike method names, which cannot: Dim Len as String will fail).

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Your little function doesn’t illustrate anything: it will return the vbDate variant returned by the Time property. It doesn’t even use Time (or time) as a variable.

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You say ‘Notice that the Time will be changed to time’. This is nothing to do with conflicts. It’s because VBA (and indeed VB6, but fortunately not VB.Net) are very bad at managing name spellings. If you declare a variable or a method or property called ‘MyName’ somewhere, and then declare something else called ‘myname’ anywhere within the same project or module, then the original ‘MyName’ will be displayed as ‘myname’ (though the actual code won’t be changed).

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It seems that the VBA/VB6 compilers have a single name table that doesn’t record the context of a name declaration (and remember VBA and VB6 are case-insensitive) . Thus when ‘myname’ is declared, the original table entry for ‘MyName’ is overwritten with ‘myname’, and that’s what you’ll see everywhere, even on the original ‘MyName’ declaration.

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This is one of the most annoying features of VBA/VB6, especially where you have references to other components that use the same names with different capitalisation, in which case what you see will depend on the order of the references to these other components.

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I don’t think this actually ‘needs to be fixed’: after all it’s been like this for well over 20 years – if it were a real problem, someone would have fixed it by now. Are you able to point to any specific instances that you think don’t work properly?

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And no, IB Developers don’t appear to monitor this group. There used to be an IB staff member in the group, which was actually very helpful due to his insider knowledge, but no longer (at least, not that we know of).

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If you really think you need to bring this to IB’s attention, you can either raise a ticket on your Account Management page, or get access to the GitHub repository and raise an issue. But I can more or less guarantee that you won’t get any traction on this: far too much work for zero benefit.

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Richard