If you attempt to sell a security in your portfolio that isn't in the set_universe for that day you will get an error. To add it into data.keys() you can do a simple for loop in initialize.
For stock in context.portfolio.positions:
data.keys().append(stock) That certainly sounds strange, when you iterate through "context.portfolio.positions" or "data" this should return all of the open positions you have in your portfolio. Regardless of how they were added (symbols(), fetcher, set_universe, etc).
Could you share the full code? Or a skeleton structure with your example? If you don't want to share it publicly, you can collab with me at [email protected]
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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.
