Summary * Instacart (CART) and DoorDash (DASH) are pursuing the online grocery and convenience market from different angles — CART through deep grocery integration and value-add services, DASH via delivery scale and logistical efficiency. * CART’s retail media business is critical for profitability, leveraging real-time inventory data to deliver high-margin ad products, while DASH lags due to weaker grocer integration. * CART emphasizes customer experience and item accuracy through a vertica