DoorDash's $17 Billion Instacart Play: Who Actually Wins?

DoorDash has agreed to buy Instacart in a proposed $17 billion deal — and the companies' central claim is that the combination will let grocers compete with Amazon and Walmart. That's a big promise. Whether grocers see any real value from it is still an open question, and the companies themselves haven't answered it in detail.

The two delivery giants announced the deal last week. Both stand to expand beyond their cores: restaurant delivery for DoorDash, grocery e-commerce for Instacart. But advocacy groups for workers and consumers want regulators to block it, citing antitrust and labor concerns.

What do the companies promise retailers?

Scale, mostly. In their merger announcement, DoorDash and Instacart framed the deal as a lifeline for local commerce.

"The biggest online retailers and grocers are racing ahead, building their own delivery fleets, warehouses, membership programs, and AI shopping assistants," the companies said. "A grocer or retailer running on thin margins cannot build all of that alone, and with AI, the playing field risks being tilted even further away from local commerce."

Analysts at William Blair — Ralph Schackart, Jack Brenczewski and Justin Whitney — called Instacart's retailer relationships, grocery technology and advertising capabilities "highly complementary to DoorDash's business and grocery initiative." DoorDash's grocery marketplace and DashMart Fulfillment Services, they wrote, would gain meaningful scale, lowering unit fulfillment costs and amortizing the fixed costs of inventory management infrastructure. The analysts expect the deal to drive grocer sales through higher-quality orders and faster deliveries.

DoorDash is expected to keep Instacart's brand, enterprise technology products and app — so shoppers and independent contractors can stay on the platform they prefer.

Neil Saunders, managing director of GlobalData, said added retailer partnerships from Instacart could boost DoorDash's order densities and fulfillment efficiency, potentially lowering costs for retailers. "All retailers need to unlock efficiencies to compete, but very few of the regional and smaller supermarkets can afford the investment or justify the development of a network to rival either Walmart or Amazon in grocery," Saunders wrote in emailed comments. "DoorDash gives them an alternative way of doing this."

Carlos Castelán, a consultant at Catalant, said the combined company could serve more of a household's food needs — prepared meals one night, groceries the next — and capture a larger share of weekly food spending. In plain terms: one app for both dinner and the weekly shop.

What's the catch?

Saunders himself flagged one. Scale alone won't do the work.

"[The] challenge will be to use the scale to fundamentally improve the economics of the business and the proposition for retailers," he wrote. More innovation and infrastructure investment must come "on top of an already premium purchase price," which "raises the bar for the returns DoorDash must ultimately deliver." A $17 billion price tag buys scale; it doesn't automatically buy better retailer economics.

Why do critics want the deal blocked?

The United Food and Commercial Workers International Union, representing 1.2 million workers across North America, called the deal "a nightmare for shoppers and workers alike." UFCW International President Milton Jones said in a Friday press release that the combination would give the companies "even more power over the workers who make their operations run and be able to undercut good-paying, union grocery jobs at the same time."

The American Economic Liberties Project said the combined e-commerce market share could create a food delivery monopoly. Senior Legal Counsel Lee Hepner said the companies would use their power "to squeeze worker compensation on the way in and drain consumer wallets on the way out."

The pricing questions aren't hypothetical. The American Economic Liberties Project pointed to Instacart ending a controversial pilot in late 2025 that let some retailers charge consumers different prices for the same products. DoorDash and Instacart are also among nine companies the FTC recently ordered to explain how they use personal data to set prices and compensation. Groundwork Collaborative added its own worry: that AI-driven pricing could harm consumers if the deal closes.

Will regulators approve it?

The deal's logic — scale to fight behemoths — echoes the failed Kroger-Albertsons merger. That proposal landed when the FTC was chaired by a staunch critic of corporate concentration. Under the Trump administration, the FTC appears more amenable to large mergers.

One thing has changed since Kroger-Albertsons was announced in 2022: the FTC and DOJ unveiled updated merger guidelines in 2023 that, as law firm Holland & Knight noted, "expand significantly the number and types of transactions subject to antitrust challenge." Drafted under Biden, the guidelines remain in effect under Trump. A friendlier agency doesn't mean a blank check.

What happens if the deal clears?

Saunders expects DoorDash to prioritize improving the economics of picking and fulfillment — through dedicated, automated fulfillment facilities in key locations, or by extending DashMart-style capabilities to more retail partners. He also expects a focus on maintaining retailer trust, which he called the deal's real tension point.

"[There] is an inherent tension with retailers becoming too dependent on a third-party provider. Especially so when it comes to things like ownership of customer data and fees," Saunders wrote. "DoorDash will need to ensure that it is seen as a partner that enables retailers to succeed, rather than an increasingly powerful intermediary that extracts value from the business. This may also be a potential area of regulatory scrutiny."

For grocers weighing the deal, that's the question that matters: partner or gatekeeper. The $17 billion answer depends on what DoorDash does after the ink dries.