Hi,
The problem is in the line between 329 and 334. Basically costBasis and marketPrice is always returning zero even though it shouldn't. So "if (float(marketPrice) / max(float(costBasis),0.01)) > 1.1:" never become True. I want stocks to get out once I made 10% return. Could you please help me understand what I am missing?
why is "context.portfolio.positions[sid].cost_basis" not working?
After following up with Ujae via email, we determined that the issue was on line 329:
for sid in context.portfolio.positions.items():
should have been:
for sid in context.portfolio.positions:
as .items() returns a tuple for each key/value pair in the positions dictionary. This meant that sid was being assigned to a tuple in each iteration of the for loop, instead of the sid.
As a side note, naming a variable sid is discouraged as it's easy to confuse with the sid() function! So doing something like:
for stock in context.portfolio.positions:
is preferred.
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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.