Quantopian's community platform is shutting down. Please read this post for more information and download your code.
Back to Community
order_percent Still spending more than portfolio has!
William Lyman
posted Jul 4, 2015

I was told to use order_percent as a means of only spending approximately what is available in capital. I've noticed though that with a million in capital, it will continually buy 50,000 worth of each stock well after going through the million dollars. (it even appears to keep buying 50,000 after already buying 50,000 worth of each stock with each passing minute)

Even if I make sure I don't have any open orders for the security about to be bought this happens.

Shouldn't order_percent(s, .05) do ~50,000 and then with the next stock 5% of the remaining 950,000$?

I should also ask, is the stock I purchase each day sold automatically at the end of the trading day?

Thanks,
-William

1 response
Thomas Wiecki
Jul 4, 2015

Hi William,

order_percent is relative to all assets (cash + portfolio value) so that is expected. You might want to take a look at order_target_percent() to achieve a certain allocation.

Stocks are not automatically sold at the end of the trading day. You can use schedule_function() and write a function to sell all stocks (using order_target_percent(stock, 0)) 15 minutes before the close.

Thomas

Disclaimer

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.

About Quantopian
Careers
Community
Events
Documentation
Academia
Lectures
Status
Facebook
Twitter
LinkedIn
YouTube
Terms of Use
Privacy Policy

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.