What's Going On With Maplebear Stock Tuesday?

Maplebear Inc. (NASDAQ:CART), which operates as Instacart, saw its stock fall on Tuesday as Amazon.com, Inc. (NASDAQ:AMZN) expanded its grocery delivery footprint, heightening competitive pressure on Instacart despite the company's newly announced retail technology partnerships.

The stock has faced renewed selling after Amazon said it now offers fast grocery delivery in more than 5,000 U.S. cities and towns, adding that strong customer feedback is driving plans to expand same-day delivery of fresh groceries to more communities in 2026.

On Tuesday, Stifel analyst Mark Kelley reiterated a Buy rating on the stock but cut his price forecast from $49 to $46.

Expanded Retail Tech Partnership

In a separate development, Maplebear announced an expanded omnichannel partnership with Allegiance Retail Services, aimed at strengthening digital capabilities for independent grocers.

The alliance includes Instacart's Storefront Pro enterprise commerce platform, providing modern e-commerce tools for all Allegiance retailers. Instacart is also rolling out its Carrot Ads retail media offering across Allegiance stores to support revenue growth both online and in-store.

Instacart's AI-powered Caper Carts are already in use at select Foodtown supermarkets in New York, New Jersey, and Pennsylvania, with additional deployments planned for 2026.

Unified Loyalty Strategy

Instacart is also integrating with AppCard, Allegiance's loyalty platform, to align promotions, rewards, and coupons across digital and physical shopping. Company officials said the unified loyalty experience is designed to deliver consistent, personalized savings for customers.

CART Price Action: Maplebear shares were down 7.22% at $37.43 at the time of publication on Tuesday, according to Benzinga Pro data.

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