Speculation of a deal has swirled since last week, and several outlets reported the acquisition could value Instacart at roughly $17 billion. DoorDash could announce a deal to buy Instacart as soon as Thursday, in a transaction reportedly valuing the grocery-delivery company at about $17 billion. DoorDash is negotiating a potential acquisition of Instacart, valued at $17 billion, to enhance its grocery delivery services and expand its market presence.