Case Study: Mars Wrigley achieves record-breaking Walmart Halloween ROAS with Clinch

Mars Wrigley drives 76% higher ROAS with Clinch

Mars Wrigley faced the challenge of standing out in Walmart's crowded seasonal landscape for their 2025 Halloween campaign. They needed to reach the right shoppers with personalized product recommendations aligned with seasonal behaviors and rituals while managing complex audience segments and reacting to marketplace constraints in real-time. To address this, they partnered with Clinch and its omnichannel content orchestration platform.

Clinch implemented a multi-dimensional, audience-driven creative strategy that dynamically matched Walmart shoppers to products and seasonal moments. This solution generated 355 creative variations and enabled real-time optimizations. The results were a record-breaking campaign that achieved a 76% year-over-year increase in ROAS, a 73% reduction in CPM, and 132 million impressions, making it one of Mars' most efficient and effective Walmart activations to date.

Mars Wrigley