DoorDash: The Bet Behind The Instacart Deal

DoorDash announced yesterday that it agreed to acquire Instacart at an equity value of approximately $17 billion. Instacart, formally Maplebear Inc. (CART), brings a grocery marketplace, technology for retailers' own online stores and an advertising business.

DoorDash wants to connect those businesses with its delivery network. The potential payoff is more efficient delivery and more revenue from each shopping relationship. For shareholders, the question is whether those benefits can generate enough additional cash to justify the purchase price, financing costs and integration work.

Management expects the deal to close at the end of 2027 or in the first half of 2028, subject to Instacart shareholder approval, regulatory approvals and other customary conditions. The companies remain separate until closing.

DoorDash connects customers, local merchants and delivery workers. Instacart combines its grocery marketplace with software that helps retailers manage online shopping and fulfillment, including through their own websites.

Advertising adds another way to earn revenue from that shopping activity. Brands pay to reach people deciding what to buy. This is often called retail media, meaning advertising associated with a retailer's shopping environment.

In its third quarter results, also released yesterday, Instacart reported $1,095 million in revenue for the three months ended September 30, 2026. That included $764 million of transaction revenue and $331 million of advertising and other revenue, all in US dollars. Advertising and other revenue grew 23% from a year earlier.

Showing an extra ad does not itself require another physical delivery. That makes advertising a potentially attractive way to earn more from an existing shopping visit. Its value still depends on whether brands get additional sales for their spending. The company reports advertising and other revenue together, so the figure should not be treated as a pure advertising total.

If more compatible orders and delivery workers are available in the same area, the combined company could match them more efficiently. Less idle time could lower delivery costs. More reliable service could give customers a reason to order again.

Grocery makes that harder than it sounds. Picking a basket, finding substitutes for unavailable items and keeping frozen food cold involve different work from collecting a prepared meal. Orders need to fit together geographically and operationally for the larger network to save money.

Retailer software offers another possible benefit. A grocer could get online shopping, advertising and delivery tools from one provider rather than assemble each piece separately. That could simplify operations and deepen the relationship with the provider. It could also make switching harder.

On yesterday's earnings call, CFO Ravi Inukonda said he expected $500 million of incremental synergies in the third year after closing, net of planned investments. Synergies are the additional benefits management expects from combining the businesses. This is a forecast that depends on execution, rather than cash already earned.

The useful evidence would be lower delivery costs, faster fulfillment, fewer refunds and customers returning without heavier promotions. Those improvements would tell shareholders more than a larger combined order count.

DoorDash says DashPass and Instacart+ members would pay one membership fee instead of two after the combination. It estimates $100 million in annual membership fee savings for consumers. That is management's estimate of customer savings, rather than savings in the company's operating costs.

Giving up duplicate subscription fees could reduce revenue. The trade could still work if a more useful membership keeps customers longer and encourages enough additional profitable orders. Delivery costs and discounts determine how much of that extra activity reaches the bottom line.

What matters is the profit a retained member generates after those costs. A growing membership count would be encouraging, but it would answer only part of the question.

Under the agreement, at least 75% of the aggregate purchase consideration would be cash, with DoorDash stock capped at 25%, subject to shareholder elections and allocation rules. The phrase equity value describes the value offered for Instacart's shares. It does not mean DoorDash is paying entirely in stock.

DoorDash expects to fund the cash portion with cash on hand and debt financing. Spending existing cash leaves less of a cushion for other investments or setbacks. Borrowing adds interest and repayment obligations. Issuing shares spreads ownership across more shares, diluting existing holders. The stock percentage of the purchase price is different from the percentage dilution those holders would experience.

The company has obtained a financing commitment for a bridge loan facility, subject to customary conditions. A bridge provides temporary financing support while a borrower works toward longer term funding. The eventual borrowing cost and financing mix will help determine what this acquisition can earn for DoorDash shareholders.

A business can be useful to own and still cost too much to buy. The strategic argument needs to survive the financing bill.

The strongest competition concern starts with the grocer. A retailer could gain better tools while losing an independent company to negotiate with. Putting delivery, customer access, software and advertising under one owner could weaken retailers' bargaining power over fees, data access and commercial terms.

The concern extends to other participants. Consumers could face less competition over promotions and service. Delivery workers could have fewer independent platforms competing for their time.

The companies argue that combining their capabilities would help local retailers compete with larger businesses that build these tools themselves. DoorDash also promises no grocery exclusivity after closing, allowing grocers to work with other delivery platforms.

That promise is more valuable when alternatives offer comparable service and switching is affordable. Regulators' assessment of those choices, and any conditions they impose, could change the economics even if the deal closes.

The strongest investment case would be retailers choosing the combined tools, customers returning because service improves, and additional cash generation after financing and integration costs. Growth driven mainly by deeper discounts or fewer effective alternatives would be much less persuasive.