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Google and Meta: The Ad Business Amazon Built on Their TurfWide moat
Amazon (AMZN) — moat facet
Google infers intent, Meta infers behaviour, Amazon watches a shopper with a wallet out — and can prove the sale afterwards.
The only market where Amazon is unambiguously the attacker is advertising. Its ad business reached $68.6 billion in 20251 and $78.0 billion over the twelve months to September 20262, which makes Amazon the third-largest digital advertising company in the world behind Google and Meta3 — a position built almost entirely out of revenue those two used to collect.
The structural advantage is that Amazon sells advertising at the point of purchase rather than upstream of it. Google infers intent from a query and Meta from behaviour; Amazon observes a shopper who is standing in the aisle with a wallet out, and can prove the sale afterwards. That closes the loop advertisers have wanted for a century, and it explains why ad dollars have moved despite Amazon's audience being far smaller than either rival's.
The uncomfortable question is who pays. Amazon's advertisers are substantially the same sellers who already pay it referral and fulfilment fees — the advertising is, in effect, a second toll for visibility on a shelf they already rent, and the subject of persistent complaints and regulatory interest. Watch advertising revenue growth against paid-unit growth: advertising rising much faster than units means sellers are paying more for the same traffic, which is lucrative until it becomes the reason they leave.
The one market where Amazon is the aggressor: third-largest globally and still growing above 25%, built on purchase intent neither rival can observe directly and on closed-loop attribution advertisers have wanted for a century. The constraint is internal — the customers being charged are Amazon's own sellers.
The third-largest digital ad business, built on purchase intent. Growth falling below Meta's would say the attribution advantage is no longer enough.
- ReportedIts ad business reached $68.6 billion in 2025 and $78.0 billion over the twelve months to September 2026, which makes Amazon the third-largest digital advertising company in the world behind Google and Meta — a position built almost entirely out of revenue those two used to collect.Amazon.com Inc., Form 10-K, FY2025 — segment results (net sales North America $426,305M, International $161,894M, AWS $128,725M; operating income $29,619M, $4,750M and $45,606M of a consolidated $79,975M, against $24,967M, $3,792M and $39,834M of $68,593M in 2024), net sales by product line (online stores $269,287M, physical stores $22,561M, third-party seller services $172,162M, advertising services $68,635M, subscription services $49,619M, AWS $128,725M, other $5,935M), net income $77,670M, and 2025 charges of $2.5 billion recorded in Q3 2025 primarily related to the settlement of a lawsuit with the Federal Trade Commission — Fiscal year ended December 31, 2025 · publ. February 2026 · source ↗
- Moat Explorer calcIts ad business reached $68.6 billion in 2025 and $78.0 billion over the twelve months to September 2026, which makes Amazon the third-largest digital advertising company in the world behind Google and Meta — a position built almost entirely out of revenue those two used to collect.Moat Explorer calculation from the advertising-services line of Amazon's third-quarter 2026 supplemental table: $21,317M (Q4 2025) + $17,243M (Q1 2026) + $19,809M (Q2 2026) + $19,637M (Q3 2026) = $78,006M over the twelve months to September 2026; the September quarter's $19,637M grew 11% as reported and 12% excluding currency, after 26% excluding currency in the June quarter and 22% in each of the four quarters before it — Q4 2025 - Q3 2026 · publ. 2026 · source ↗
- Third-party estimateIts ad business reached $68.6 billion in 2025 and $78.0 billion over the twelve months to September 2026, which makes Amazon the third-largest digital advertising company in the world behind Google and Meta — a position built almost entirely out of revenue those two used to collect.Amazon advertising revenue and market position — ~$68.6B in FY2025, running above $80B annualised on ~$19.8B quarterly (+26%); third-largest digital advertising company globally behind Google and Meta, ~11% of global digital ad spending — 2025-2026 · publ. 2026 · source ↗