Why is Criteo stock plummeting today?
Criteo shares fell 27.6% pre-open to $16.21 after Q2 2026 results and a sharp full-year outlook cut. Adjusted EPS was $0.80 vs $0.70 consensus, but 2026 Contribution ex-TAC is now forecast to decline 10–12% at constant currency. Revenue fell 11% to $428M. The company also announced a CFO transition effective Aug. 10.
How this was made
The 30-second read
Why it matters
The guidance downgrade is unusually large versus the prior forecast, and it coincides with a CFO transition effective August 10, reinforcing investor concern about near-term execution.
Market read
Company-specific selloff appears driven by a major guidance reset and ongoing pressure from Retail Media client losses, not by macro weakness.
What to watch
The article highlights a $21M headwind from scope reductions and specific Retail Media client losses; traders may want to separate one-off client churn from underlying demand trends.
Background
Criteo reported Q2 2026 results alongside a severe full-year outlook cut, with revenue down 11% YoY and Contribution ex-TAC down 13% YoY.
Ticker impact
Criteo shares plunged pre-open after Q2 results were overshadowed by a sharp full-year outlook cut, including 2026 Contribution ex-TAC guidance down 10-12%.
Bearish near-term bias; expect elevated volatility as the market reprices 2026 contribution and EBITDA trajectory.
The article cites a materially worse constant-currency outlook versus prior low-single-digit decline, plus CFO transition timing that can amplify uncertainty.
Market effects
Signals heightened fragility in commerce media and ad-tech monetization when Retail Media client scope shrinks.
No clear macro spillover indicated, as major US indices were up modestly.
Primarily company-specific; no evidence of broader sector-wide deterioration in the article.
Counterpoint
The headline EPS beat (adjusted EPS $0.80 vs $0.70 consensus) could support a stabilization trade if investors view the guidance cut as temporary scope noise.
Key entities
- public_companyCriteo
Subject of the article, with shares down 27.6% pre-open after guidance cut and CFO transition.
- executiveConnor McGogney
Chief Strategy Officer set to become CFO on August 10.
- executiveSarah Glickman
Current CFO since 2020, succeeding out of the role on August 10.

