Kroger and Instacart are delivering stronger retail media profit ROI than Amazon, Walmart and Target, according to Keen Decision Systems. Kroger generated USD2.35 for every dollar invested, while Instacart returned USD1.85. Kroger’s retail media investment rose 54.2% YoY, ahead of Target and Walmart. Retail media’s share of marketing investment increased from 5.6% in 2020 to 11.1% in 2025 and continues to grow. (Supermarket News)