DoorDash is the dominant U.S. food delivery marketplace (56-67% share) with compounding three-sided network effects, a rapidly scaling advertising platform ($1B+ run rate, ~100% YoY growth), and a clear path to sustained GAAP profitability ($935M net income FY2025, first full profitable year). The $3.9B Deliveroo and $1.2B SevenRooms acquisitions transform DoorDash from a U.S.-centric delivery marketplace into a global commerce platform operating in 45+ countries with in-store restaurant tech capabilities. At $155 near 52-week lows (down 46% from peak), the market is overly discounting integration risk and gig worker regulation while underweighting the advertising profit engine and the margin expansion runway as international operations approach breakeven.