Position object does not have amount property?

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Position object does not have amount property?

Daniel Sandberg

edited Jul 19, 2013

I am trying to sum up the value of all my short positions only. So.... I want to parse thru all open positions and if the number of shares opened is negative (a short position) then I was to add that position's value to a variable. Here is a sample of the loop

    for pos in context.portfolio.positions:  
#        print(str(pos.sid) )  
        if pos.amount<0: #short position  
            context.totalShorts += (pos.amount * pos.price)

and I'm getting this error

AttributeError: 'Security' object has no attribute 'amount'
USER ALGORITHM:40, in handle_data
if pos.amount<0: #short position

1 response

Daniel Sandberg

So I guess this works

    for sym in data.keys():  
        if context.portfolio.positions[sym].amount < 0:  
            context.totalShorts += (context.portfolio.positions[sym].amount * data[sym].price)

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The material on this website is provided for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation or endorsement for any security or strategy, nor does it constitute an offer to provide investment advisory services by Quantopian.

In addition, the material offers no opinion with respect to the suitability of any security or specific investment. No information contained herein should be regarded as a suggestion to engage in or refrain from any investment-related course of action as none of Quantopian nor any of its affiliates is undertaking to provide investment advice, act as an adviser to any plan or entity subject to the Employee Retirement Income Security Act of 1974, as amended, individual retirement account or individual retirement annuity, or give advice in a fiduciary capacity with respect to the materials presented herein. If you are an individual retirement or other investor, contact your financial advisor or other fiduciary unrelated to Quantopian about whether any given investment idea, strategy, product or service described herein may be appropriate for your circumstances. All investments involve risk, including loss of principal. Quantopian makes no guarantees as to the accuracy or completeness of the views expressed in the website. The views are subject to change, and may have become unreliable for various reasons, including changes in market conditions or economic circumstances.