Q3 Digital Ad Forecast – Oxford Data Plan

  • ODP have a unique dataset that tracks ad spending from a daily panel as well as ad budget plans.
  • This means a lot of interesting and out-of-consensus forecasts on the digital ad companies like Google, Reddit, Meta, and Snap.
  • Below is a snapshot of the Q3 digital ad forecasts.
  • Snippet readers can email to get a free five week trial and the full pdf of forecasts which also includes Q4 guide estimates and the interesting consensus deviating forecasts.
  • This post is sponsored, see disclaimer.

Analyst Buys and Sells

  • This is a table of the S&P 500 companies with the highest percentage buy ratings and sell ratings.
  • All in a period where, according to FactSet, currently 59.9% of all stock ratings are a Buy ratings – if this holds to month-end, it will be highest (month-end) percentage of Buy ratings for the S&P 500 going back to at least 2010. 
  • Source: FactSet, Sep 2026.

Was Part of the Startup Boom a Data Illusion?

  • “Early in 2026 the Census Bureau completed a major update to the methodology of the HBA series. There had been a flood of applications starting in late 2024 with characteristics that made them seem like traditional HBA applications, but which actually ended up having a very low likelihood of transitioning to an employer business. There were “applications associated with internet sales,” and the methodological fix excluded them to make the series more accurate.“
  • Why it matters: Negates one of the most supportive bits of evidence of a post-pandemic entrepreneurship boom.
  • Source: Full paper here, Economic Innovation Group, Sep 2026.

Momentum Worked Before the Stock Database Began

  • Most factor work uses the CRSP database. This paper found a dataset predating CRSP.
  • Momentum and value survived this “out-of-sample” test.
  • Why it matters: Many factor studies begin with CRSP in 1926. Finding momentum and value in an earlier market makes data-mining a less convincing explanation.
  • Source: Baltussen, Swinkels and van Vliet, SSRN, May 2026.

Copper Production – Underestimated

  • “Clear visibility on copper supply growth extends only about three to four years out. As such, base-case production capability is always forecasted to decline due to closures and grade attrition. However, the actual trajectory of supply has been very different.“
  • Why it Matters: A narrative violation that copper is becoming more scarce.
  • Soruce: JP Morgan, Sep 2026.
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