Will Google Search revenue growth fall below 12% YoY in either Q1 or Q2 2026?

Search revenue is accelerating (+15% Q3 → +17% Q4) with strong underlying momentum. The DOJ behavioral remedies are in effect but their competitive impact on Search distribution operates on a 1-3 year timeline, not a 1-2 quarter timeline. Gemini MAU growing alongside Search acceleration provides directional evidence against near-term cannibalization. The 12% threshold represents a 5pp deceleration from Q4 levels — possible but unlikely within two quarters given momentum and the absence of a concrete disruption catalyst. Apple deal changes not yet in effect.

The base case strongly favors Search maintaining 12%+ growth through H1 2026. However, the unresolved AI cannibalization debate deserves modest weight — per-query economics remain undisclosed, and volume growth masking monetization decline is a possibility the committee explicitly flagged. The 15% rather than 12% probability accounts for the small but real chance that AI Overviews are already compressing per-query revenue in ways not yet visible in aggregate growth, plus any macro-driven advertising cyclicality in H1 2026.

The committee found revenue-side narrative 'largely ALIGNED with fundamentals' — the Myth Meter's most favorable possible assessment for Search. Four lenses independently validated Search strength. The 12% threshold requires a dramatic 5pp sequential deceleration with no identified near-term catalyst. DOJ mandated changes operate on a multi-year timeline. Even if Apple implements a choice screen (itself unlikely before year-end), the impact on Search revenue would not appear in Q1-Q2 results. Assigning 10% for unknown unknowns.

Search at +17% with acceleration trend. The question is whether anything breaks this in the next two quarters. DOJ remedies are in effect but competitor exploitation takes time. AI cannibalization possible but current data contradicts it. Only macro recession or sudden ad market downturn could realistically push below 12%. Given strong momentum, this is a low probability outcome.

Strong consensus across lenses that Search revenue is robust near-term. The CONDITIONAL classification from Gravy Gauge is about medium-term durability, not H1 2026 trajectory. Gemini growing alongside Search suggests complementarity not substitution in the near term. Setting at 11% — mostly driven by tail scenarios like surprise macro weakness.

While the base case is continued strength, I weight the AI cannibalization uncertainty higher than my peers. The committee explicitly noted per-query economics are undisclosed. If AI Overviews are reducing CPCs while boosting query volume, aggregate growth could mask declining unit economics — and a quarter of weaker advertising demand could suddenly expose this. Also, the +17% Q4 may have benefited from holiday advertising spend that won't repeat in Q1-Q2. Assigning slightly higher probability for the combination of seasonal normalization plus hidden monetization compression.

Search +17% and accelerating. No near-term catalyst for 5pp drop. DOJ impacts are multi-year. Low probability.

Strong momentum, 4-lens validation, no identified near-term catalyst. The 12% threshold is 5pp below current. Very low probability.

Mostly a low-probability event. But the AI transition and DOJ remedies create non-zero risk. Assigning 16% — slightly above base due to combination risks from macro weakness + early DOJ impacts + undisclosed AI query economics.