DoorDash's EPS beat is mostly tax-driven, and the apparent discount on its Instacart purchase will take time to matter. Despite a strong quarter, $1.06 GAAP EPS at a 3.9% tax rate would be about $0.85 at 23%, roughly in line with consensus; organic GOV growth stayed at 23%. DoorDash is paying 11.7x annualized Q3 EBITDA for Instacart versus its own 16x multiple, but the $17B deal won't close until late 2027 or 1H28, and management plans to reinvest more than 100% of first-year synergies. x.comÂ