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Laurent Crouzet INVESTOR

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Hi.

Oanda does allow its users to trade very freely, trading other quantity than lot/mini-lot/micro-lot sizes (for instance 53 456 EUR/USD and not either 53 000 or 54 000). That is also possible when using QC to trade on OANDA.

However, OANDA allows also to trade than micro-lot size of 1000.

But when using QC to trade on OANDA in backtesting mode, these orders of less than 1000 EUR/USD are not accepted, and we got the error message instead;

"Backtest Handled Error: Unable to submit order with id -10 which quantity (100) is less than lot size (1000)."

Is this a bug, that will be corrected, maybe by updating SetBrokerageModel(BrokerageName.OandaBrokerage)?

If it is not a bug, why do you prevent QC users to trade as freely on OANDA as they can be used to -when they trade on OANDA directly?

Thanks for the answer.

Update Backtest

Laurent Crouzet

Accepted Answer

Update Backtest

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Stefano Raggi

8.8k Pro ,

Hi Laurent Crouzet
it seems you are using the default brokerage model for FXCM, which has a lot size of 1000 for EURUSD.

If you insert this line in the Initialize method, the lot size will be set to 1 and the order should go through without errors:

SetBrokerageModel(BrokerageName.OandaBrokerage);

This example algorithm runs in the cloud with no errors:

    public class BasicTemplateAlgorithm : QCAlgorithm

    {

        public override void Initialize()

        {

            SetStartDate(2013, 10, 07);  //Set Start Date

            SetEndDate(2013, 10, 11);    //Set End Date

            SetCash(100000);             //Set Strategy Cash



            SetBrokerageModel(BrokerageName.OandaBrokerage);

            AddForex("EURUSD", Resolution.Second);

        }



        public override void OnData(Slice data)

        {

            if (!Portfolio.Invested)

            {

                Buy("EURUSD", 100);

            }

        }

    }

If the SetBrokerageModel line is removed, you will get the lot size error.

Laurent Crouzet

4.9k Pro ,

Thanks, Stefano!

The issue was the order of the code: I wrote the SetBrokerageModel line below the AddForex...

Laurent Crouzet INVESTOR

Update Backtest

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