Sharwan Patel

How to set order volume to balance percentage?

Programming

Hi all, I have a question related to placing orders. 
I checked from Tech Doc that the order volume refers to the number of contract to buy. 
However, I want to buy for 1% of balance. How can I do that? 

0 0
Posted on : 2022-10-04 02:14:21.078199
 
William Cheung
I don't think it is supported in current API functions. 
You need to calculate by yourself. 

0 0
Posted on : 2022-10-05 01:20:10.747992
 
admin

Hi Patel, the sendOrder function currently doesn't support order size as a percentage of account balance. So it needs some calculation as follows.

As an example, you want to trade for 1% of current available balance: 



 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
    def on_marketdatafeed(self, md, ab):
        
        pct = 0.01  # trade for 1% percent balance

        availableBalance = ab['availableBalance']  # get your current available balance

        contractSize = self.evt.getContractSpec(md.instrument)["contractSize"] # get contract size of current instrument

        volume = round(pct*availableBalance/contractSize, 2)  # how much contract can buy for 1% balance
        
        order = AlgoAPIUtil.OrderObject(
            instrument = instrument,
            openclose = 'open',
            buysell = 1,
            ordertype = 0,
            volume = volume
        )
        self.evt.sendOrder(order)

1 0
Posted on : 2022-10-05 11:15:25.274312



Categories