• Publication: JOURNAL OF ACCOUNTING RESEARCH, SEPTEMBER 2016 (version here)

What are the research questions?

  1. Are crowdsourced earnings forecasts from a source such as Estimize, useful in the capital markets by capturing new information about future earnings?
  2. Does a site such as Estimize add incremental accuracy when combined with the conventional, sell-side earnings forecasts such as the IBES consensus as well as a statistical model of forecasts? Is the crowdsourced consensus more or less related to earnings surprise announcement returns?
  3. Is the crowdsourced consensus more or less related to earnings surprise announcement returns?

What are the Academic Insights?

  1. YES- Significant two-day excess returns (0.41%) surrounding large upward/downward EPS revisions were documented.  Notably, this excess return was not reversed over the following two weeks and was unrelated to confounding corporate events.
  2. YES- Including the Estimize forecast with either a statistical model or using the IBES consensus resulted in significant improvements in the accuracy of forecasting actual EPS.  The accuracy improvements extended to all forecast horizons.  Accuracy of the Estimize contribution increased with the number of Estimize contributors.
  3. YES- The Estimize consensus added incremental explanatory power to the three day earnings surprise announcement returns, controlling for the IBES consensus forecast.  With five or more contributors, the Estimize forecast dominated the IBES consensus in explaining the three day announcement returns.

Why does it matter?

This paper is interesting because it is the first to examine the value of this alternative source of earnings forecasts.  A crowdsourcing site such as Estimize versus other whisper sites, attracts and utilizes a wider variety of capable forecasters including analysts, portfolio managers, independent investors, corporate finance professionals and students.

The results indicate that capable external forecasters, using their own content, are able to provide and distribute less biased, more relevant and incrementally useful information about future EPS.

One caveat, Estimize contributors are potentially able to capitalize on sell-side estimates given those are timelier and widely available.  The benefit in forecasting accuracy from such an advantage is inherently compromising.

The Most Important Chart from the Paper:


Tommi Johnsen, Ph.D., (@TommiJohnsen) is an independent investment consultant. With co-author Elisabetta Basilico, PhD, CFA she is writing an upcoming book on research backed  investing. You can learn more at http://academicinsightsoninvesting.com/

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