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Pipeline and Real Money Trading: any guidelines on what we need to screen out?

Now that the pipeline framework is available for live trading I wonder if it is safe to trade blindly any stock that comes out the ranking scheme of our pipeline or if we should put some safety belts in our code. From pipeline point of view all stocks are the same, but are they?

Few things that have been reported in various posts are: Leveraged ETF, ETFs, stocks about to be de-listed, when-issued, ADRs, REITs, others?

Should we screen something out? Why?

Any advice from experienced traders?

Thanks.

1 response

I have the same question (although I'm considering cooking up a contest entry). Simon provides some filters here: https://www.quantopian.com/posts/equity-long-short.

Regarding stocks about to be de-listed, reportedly Q has a project to address this problem. It sounds complicated, though, since you'd need a new data set (I think) that would provide point-in-time notification that a de-listing is eminent (and then if for some reason the date gets pushed out or the decision is reversed, that info would need to be available, too). Does Interactive Brokers (and Robinhood?) send notifications by e-mail or something, or do you just wake up one day to find a holding can no longer be traded through Quantopian?