9th Annual Retailer Preference Index (RPI) for U.S. Grocery
7th January 2026
Three-minute read
Since its launch in 2017, dunnhumby’s Retailer Preference Index (RPI) has become a trusted resource for U.S. retailers and brands, surveying over 10,000 shoppers annually to track preferences across 60+ grocery retailers.
The 2026 RPI will deliver vital insights into the factors driving customer loyalty - especially price, promotions, and rewards, the pillars of long-term success in today’s competitive market.
Our unique methodology combines financial performance with customer perceptions, giving retailers actionable intelligence to strengthen their value propositions and improve competitive standing.
