Checkout upsells are 100%+ of Amazon's retail profit — why merchants fear agentic commerce

davidyin44 · x · 2026-11-15

A Theory Ventures chart (from FY25/FY26 10-K filings) explains why merchants and platforms dread agentic commerce: checkout ads and upsells are the profit engine.

If AI agents comparison-shop and buy at pure product prices, platforms lose the cross-subsidy that funds their profits — the real economic motive behind resistance to agentic commerce.

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