Pipeline USEquityPricing.close is not split-adjusted and causes all kinds of problems. What to use instead?

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Pipeline USEquityPricing.close is not split-adjusted and causes all kinds of problems. What to use instead?

edited Oct 20, 2018

Seeking Help Getting Started Using Data Research Pipeline

Can you please share, how are corporate action events not causing any problems for you in the research environment / Alphalens?

See the attached example.

0) what is going on with this data? There was a split on 2016-06-09 (yahoo finance), so what is that jump on 2016-05-16 ?

1) at first Factors.DailyReturns() seems to be split-insensitive, ie. usable. But why does it jump at 2016-05-17? So it is not reliable then

2) USEquityPricing.close : it is not usable for any returns calculation (ie. it will corrupt your Alphalens results)

3) Fundamentals.shares_outstanding : the docs say "This field is updated quarterly and it is not adjusted for corporate action events including splits" what does this mean? So between a split and the following update the value is basically invalid?

Is there a price field somewhere which would not cause such problems? Do I have to manually generate my prices using market cap / #shares at time zero?

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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.