Same Cart, Different Price: Instacart’s Price Experiments Cost Families at Checkout

An independent live-test study by Groundwork Collaborative, Consumer Reports and More Perfect Union—recruiting 437 Instacart shoppers (193 submissions analyzed) across four U.S. cities—found widespread price variability on Instacart: 74% of items showed multiple simultaneous sales prices (up to five tiers), the average spread between lowest and highest item price was 13% (with some items 23% higher for some shoppers), and identical baskets varied by about 7% on average, which the authors estimate could cost a U.S. household of four roughly $1,200 annually. The report links this variability to Instacart’s 2022 acquisition of Eversight and its AI-driven price-testing tools; Instacart says tests are randomized and do not use personal demographic data, while Target denies a pricing relationship (Instacart later acknowledged scraping Target prices and applying markups). The findings raise reputational and regulatory risks for Instacart and its retail partners—fueling ongoing FTC scrutiny, proposed federal and state bans/disclosures on algorithmic or surveillance pricing—and could prompt enforcement, litigation, or legislative action that would affect margins, retailer partnerships and the online-grocery pricing model.

Analysis

The joint live-test study of 437 recruited Instacart shoppers (193 cleaned submissions analyzed) found pervasive price variability: 74% of tested items were shown at multiple simultaneous sales prices (up to five tiers), the average spread between lowest and highest item price was 13%, identical baskets varied about 7% on average, and some items or baskets diverged by as much as 23% or roughly $9–$10. Researchers translate the average basket variance into an estimated cost swing of about $1,200 per year for a household of four based on Instacart’s own spending estimates.

The report links this variability to Instacart’s 2022 acquisition of Eversight and its AI-driven price-testing tools; Instacart asserts tests are randomized and non‑demographic, while also acknowledging it scraped Target prices and applied markups and Target denies a direct pricing relationship. Researchers documented opaque practices such as differing “original” prices with identical sale prices and confirmed similar experimentation signals at Albertsons, Costco, Kroger and Sprouts in a follow-up test.

Investor implications center on a tradeoff between incremental margin opportunities from price optimization and rising regulatory, litigation and reputational risks: the study cites ongoing FTC scrutiny, proposed federal (Stop AI Price Gouging Act) and state-level disclosure/bans, and potential enforcement under unfair or deceptive pricing standards. Near-term catalysts to monitor are Instacart disclosures quantifying Eversight-related revenue/margin, any regulator enforcement actions or legislation outcomes, and changes in retailer partnerships or public guidance.

Key Decisions for Investors

• Adopt a cautious near-term stance on CART—consider trimming or hedging exposure until Instacart provides quantitative disclosure on how much revenue and margin depend on Eversight-driven price tests or regulators clarify enforcement intent
• Monitor regulatory and legislative catalysts (FTC inquiries, progress of the Stop AI Price Gouging Act, and state algorithmic pricing laws) and avoid adding to positions ahead of material legal resolution or clear company remediation
• For exposed retail names (TGT, KR, COST, ACI), reassess risk premia for reputational and pricing alignment exposure, review company disclosures on online vs. in‑store price reconciliation, and consider position hedges where guidance or contract risk is uncertain
• Prepare to selectively add to long positions only if adverse news triggers a sizable selloff and the company subsequently issues transparent, quantifiable remediation or regulators reach a resolution that limits future uncertainty