Post-Only Attribute from IBKR for MOO Orders

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Post-Only Attribute from IBKR for MOO Orders

Last comment by - 10 days ago

Post-Only Attribute from IBKR for MOO Orders

Issue with IBKR MOO order: "On-Open order cannot have post-only attribute." Any fixes?

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Post-Only Attribute from IBKR for MOO Orders

Khoa Cao | 10 days ago

Hi,

I am trying to do a market on open order for IBKR and I keep on consistently running into this issue:

Brokerage Info: Order Canceled - reason:On-Open order cannot have post-only attribute..

I can't seem to find any documentation on QC or IBKR about this. I've also tried the following code, but this doesn't work either - does anyone have any recommendations?

Init:

self.default_order_properties = OrderProperties()
self.default_order_properties.post_only = False

Order:

self.market_on_open_order([symbol],[quantity],order_properties=self.default_order_properties)

Thanks

Author

Khoa Cao

10 days ago

Upvote

Mia Alissi INVESTOR

10 days ago

To fix the issues with undefined variables in the provided code snippet, ensure that symbol and quantity are properly defined before using them in the market_on_open_order call. Here is an updated version:

def initialize(self):
    # Your initialization code
    self.symbol = "IBM"  # Example symbol
    self.quantity = 10  # Example quantity
def on_data(self, data):
    # Example order placement without specifying order properties
    if not self.portfolio.invested:
        self.market_on_open_order(self.symbol, self.quantity)

Make sure to replace the example values of self.symbol and self.quantity with your actual trading symbol and desired quantity.

Sources: Market On Open Orders - QuantConnect.com, Order Errors - QuantConnect.com, Order Ticket Demo Algorithm, Market On Open On Close Algorithm

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10 days ago

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