Observed Signal · Mar 9, 2026 · M&A · Source: Adweek · Impact: 3/5 · Sentiment: Negative
Retail Media Faces M&A Surge Amid Growth Slowdown
Retail media is entering a more difficult phase marked by a wave of M&A and consolidation as marketers demand stronger measurement and unified shopper data. Recent deals cited by Adweek include Spins’ acquisition of MikMak, Omnicom folding TPN into Flywheel, Podean’s purchase of Ad Advance, and Infillion’s acquisition of Catalina; terms were not disclosed. Buyers are combining shopper-marketing datasets with adtech stacks (Infillion has previously acquired MediaMath, Gimbal and Fysical) to offer integrated measurement and commerce capabilities. Analysts say the sector’s early, rapid expansion is easing, driven by advertiser pressure to prove ROI, tighter budgets, and the concentration of spend with Amazon and Walmart. Observers expect further consolidation as retailers and tech firms seek scale and capabilities to compete for shifting brand budgets.
Consolidation and strategic acquisitions indicate the retail media sector is maturing — advertisers now demand stronger measurement and integrated data/tech stacks, which will reshape vendor relationships and buying patterns and likely spur further M&A.
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Key Takeaways & Evidence Grounding
- Spins acquired MikMak.
- Omnicom merged TPN into Flywheel.
- Podean acquired Ad Advance.
- Infillion acquired Catalina; terms of recent M&A were not disclosed.
- Amazon and Walmart account for roughly 85% of total retail media ad spend; eMarketer projects retail media ad spend to hit $70 million in 2026 according to the article.
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Retail Media Enters Maturity as Easy Growth Fades
After five years of rapid expansion, retail media is shifting from early-stage growth to maturity. IAB forecasts 12.1% growth in 2026 while Forrester projects global retail media investment could surpass $300 billion by the end of the decade. Growth to date has been concentrated among a few scaled players and fueled largely by trade and shopper funds (estimated 30–60% of spend), which are now diminishing. The next phase requires attracting incremental media budgets, improving measurement and accountability (particularly incrementality and in-store attribution), and integrating retail media into broader business functions — merchandising, loyalty, ecommerce and operations. The industry faces operational and measurement challenges and will discuss these topics at the IAB Connected Commerce Summit on April 14 in New York City.
Retail Media Silos and Measurement Hamper Growth
Executives at an ADWEEK House panel held at the Possible conference in Miami discussed persistent challenges slowing retail media growth despite forecasts of nearly $70 billion in spend this year (per Emarketer). Panelists—representing retailers, commerce media networks, brands and adtech firms—said Amazon and Walmart capture the majority of retail media dollars with operating models that are difficult for most retailers to replicate. That concentration, combined with issues around profitability, measurement, collaboration and lack of standardization, has contributed to slow or uneven expansion of many retail media networks and repeated network “resets.” The discussion highlighted the need for better measurement and cross-industry alignment to unlock broader retail media profitability and scale.
Walmart's TV Ambitions, Amazon's Data Transparency, Disinfo Retreat
This AdExchanger daily roundup covers several distinct news items. Walmart is expanding into TV advertising through its acquisitions of Vizio and Vibe.co, with Walmart Connect GM Ryan Mayward stating that commerce insights will drive stronger outcomes for brands. Amazon is beta testing an 'About You' page that lets users see the assumptions it makes about them based on collected data, including physical attributes, raising privacy concerns. Additionally, multiple countries have withdrawn sponsorship from the #Disinfo2026 conference amid US political pressure, reflecting a broader aversion among advertisers and governments to anti-disinformation efforts.
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