When does the Portfolio data change after buying or selling?

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When does the Portfolio data change after buying or selling?

posted Oct 26, 2016

API Seeking Help Getting Started

The portfolio information is not updated right after a buy/sell.

However, after sometime it does get updated. Trying to understand if there is some sort of check to be done before looking at the Portfolio details.
For example:
I expect to see:

2016-10-19 09:31  PRINT BUY:  
2016-10-19 09:31  PRINT Position Count: 1

But I see:

2016-10-19 09:31  PRINT BUY:  
2016-10-19 09:31  PRINT Position Count: 0

Just trying to understand what's going on.

Output:

2016-10-19 09:31  PRINT BUY:  
2016-10-19 09:31  PRINT Position Count: 0  
2016-10-19 09:31  PRINT Portfolio Cash: 1000.0  
2016-10-19 09:31  PRINT Portfolio Value: 1000.0  
2016-10-19 15:30  PRINT SELL:  
2016-10-19 15:30  PRINT Position Count: 1  
2016-10-19 15:30  PRINT Portfolio Cash: 411.724999963  
2016-10-19 15:30  PRINT Portfolio Value: 997.324999963  
2016-10-20 09:31  PRINT BUY:  
2016-10-20 09:31  PRINT Position Count: 0  
2016-10-20 09:31  PRINT Portfolio Cash: 996.499998897  
2016-10-20 09:31  PRINT Portfolio Value: 996.499998897  
2016-10-20 15:30  PRINT SELL:  
2016-10-20 15:30  PRINT Position Count: 1  
2016-10-20 15:30  PRINT Portfolio Cash: 412.049998831  
2016-10-20 15:30  PRINT Portfolio Value: 996.999998831

2 responses

An easy way to check whether the portfolio has actually been updated is in the handle_data function.

I've updated your algo as an example of how to see this portfolio data change.

handle_data runs at a minute basis, and I added a method to log when the portfolio updates

The output is:

2016-10-19 09:31  PRINT BUY:  
2016-10-19 09:32  PRINT Portfolio updated 2016-10-19 13:32:00+00:00  
Portfolio Cash now: 411.724999963  
2016-10-19 10:00  PRINT SELL:  
2016-10-19 10:01  PRINT Portfolio updated 2016-10-19 14:01:00+00:00  
Portfolio Cash now: 998.524999736  
2016-10-20 09:31  PRINT BUY:  
2016-10-20 09:32  PRINT Portfolio updated 2016-10-20 13:32:00+00:00  
Portfolio Cash now: 414.074999669  
2016-10-20 10:00  PRINT SELL:  
2016-10-20 10:01  PRINT Portfolio updated 2016-10-20 14:01:00+00:00  
Portfolio Cash now: 998.274998882

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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.

Thanks @Matthew, I will give this a try.

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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.

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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.