an issue with fundamentals.valuation_ratios.total_yield data

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an issue with fundamentals.valuation_ratios.total_yield data

edited Jan 31, 2016

API Seeking Help Using Data

total_yield suppose to be a sum of dividend_yield and buyback yield.
The total yield that shareholders can expect, by summing Dividend Yield and Buyback Yield.

I did a query where I fetched dividend_yield, buyback_yield and total_yield. In addition I fetched dividend_yield + buyback yield as shareholder_yield that should be equal to total_yield:

    fundamental_df = get_fundamentals(  
        query(  
            (fundamentals.valuation_ratios.buy_back_yield + fundamentals.valuation_ratios.dividend_yield).label('shareholders_yield'),  
            fundamentals.valuation_ratios.total_yield,  
            fundamentals.valuation_ratios.dividend_yield,  
            fundamentals.valuation_ratios.buy_back_yield  
        )  
        .filter(fundamentals.valuation.market_cap > context.minimum_market_cap)  
        .filter((fundamentals.valuation_ratios.dividend_yield + fundamentals.valuation_ratios.buy_back_yield) > 0.1)  
        .order_by((fundamentals.valuation_ratios.dividend_yield + fundamentals.valuation_ratios.buy_back_yield).desc())  
        .limit(context.num_stocks)  
    )  
    print fundamental_df.head(5)

The results show that total_yield is never the sum of dividend_yield and buyback_yield. It is quite randomly equal to either dividend_yield or buyback_yield:

2011-01-04PRINTsecurity Equity(20462 [BLT]) Equity(7761 [UIS]) \
shareholders_yield 1.5410 0.6785
total_yield 0.0052 0.0118
dividend_yield 0.0052 0.6667
buy_back_yield 1.5358 0.0118

security Equity(12821 [PMI]) Equity(21417 [NDZ]) \
shareholders_yield 0.5940 0.5889
total_yield 0.0012 0.5872
dividend_yield 0.0012 0.0017
buy_back_yield 0.5928 0.5872

security Equity(15814 [HMY]) Equity(7496 [TCH]) \
shareholders_yield 0.4276 0.415
total_yield 0.0062 0.000
dividend_yield 0.0062 0.415
buy_back_yield 0.4214 0.000

try it out by yourself:

1 response

Here seems to be another issue with buy_back_yield data as well.
Look at the previous log:
2011-01-04PRINTsecurity Equity(20462 [BLT]) Equity(7761 [UIS]) \
shareholders_yield 1.5410 0.6785
total_yield 0.0052 0.0118
dividend_yield 0.0052 0.6667
buy_back_yield 1.5358 0.0118

It is very unlikely that buy_back_yield can be 153%.

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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.