Quantopian's community platform is shutting down. Please read this post for more information and download your code.
Back to Community
test of before_trading_start() time-out
Grant Kiehne
posted Oct 11, 2015
API Feature Request

Here's a test of the before_trading_start() time-out. Indeed, it has been increased to 5 minutes.

So, if you have number crunching in your code, and can do it on a daily basis before the market opens, do it in before_trading_start().

One request is that it should be possible to catch a time-out error so that the algo doesn't crash.

Also, is there any reason to think that the execution time of code within before_trading_start() would vary (e.g. due to the load on the Q system)? Or should we expect it to be consistent?

In live trading, when does before_trading_start() run? Is it at 9:25 am, just before the market opens, or earlier?

1 response
Deepak Gopal V
Feb 14, 2017

Did you manage to find answer to this question?
In live trading, when does before_trading_start() run? Is it at 9:25 am, just before the market opens, or earlier?

Also what is the current timeout on before_trading_start()?

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.