Buy/Sell prices off

[kazi]

Hi backtrader,

Thank you for this great project! I am seeing strange buy and sell prices:

2017-12-25, Close, 0.00061700
2017-12-25, BUY CREATE, 0.00061700
2017-12-25, BUY EXECUTED, Price: 0.00059600, Cost: 0.00059600, Comm 0.00000060
2017-12-25, Close, 0.00060900
2017-12-25, Close, 0.00060700
2017-12-25, Close, 0.00060200
2017-12-25, Close, 0.00060200
2017-12-25, Close, 0.00060500
2017-12-25, Close, 0.00060200
2017-12-25, Close, 0.00061700
2017-12-25, Close, 0.00061100
2017-12-25, Close, 0.00061500
2017-12-25, Close, 0.00060200
2017-12-25, SELL CREATE, 0.00060200
2017-12-25, SELL EXECUTED, Price: 0.00059200, Cost: 0.00059600, Comm 0.00000059
2017-12-25, OPERATION PROFIT, GROSS -0.00000400, NET -0.00000519
2017-12-25, Close, 0.00060600

The buy and sell parameters are set as follows:

self.order = self.buy(price=self.dataclose[0])
self.order = self.sell(price=self.dataclose[0])

The commission has been set to 0.001.

Please let me know if you need any further information.

Thank you in advance!

[ab_trader]

Since you are using market orders, than price parameter in the self.buy and self.sell is not used. Market order is executed based on the next available price - next bar open. If you want to specify the price of order execution, than you need use stop or limit orders. Please check the following doc section -
Docs - Order Management and Execution

[kazi]

Thanks @ab_trader I should have seen that! Appreciate your help.