Leadership4 distinct publishers3 min readPublished
Regulators say a synthetic bid quietly lifted the clearing price inside Amazon's ad auctions. The awkward part for buyers is that the only party who can confirm their own exposure is the party being sued.
The Board Room · Leadership desk
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The two numbers Amazon has put in front of advertisers answer a question the FTC did not ask. Amazon says its ranking formula gives more weight to ad relevancy than to bid amount, and that approximately 92% of selected Sponsored Products ads in 2024 were not the highest bid [10][12]. It estimates that this approach saved advertisers more than $8 billion between 2021 and 2025 [11]. Those are claims about which ad gets picked. A soft reserve, as the FTC describes it, is a claim about what the winner then pays: a second-price auction charges the winner a notch above the next-highest bid, so a synthetic bid inserted into the mix moves the notch [3][4]. Both descriptions can hold at the same time, which is the whole difficulty for a buyer working only from platform-supplied reports.
The scale is worth handling carefully. The FTC's headline figure is more than $20 billion since late 2018, applied through surcharges the suit says ran for seven years across more than a million Amazon brands and sellers [5][2]. Spread evenly, that is roughly $2.9 billion a year, about 4.2% of the more than $68 billion in site ad revenue the agency attributes to Amazon [27]. Across the 1.2 million advertising accounts the FTC counts, the average works out near $16,700 over the whole period [28]. Distribution is unknown, so no individual advertiser should read the average as its own bill. But a margin of that order sits inside the normal variance of paid search, and the complaint alleges Amazon tested how far it could push charges without advertisers flinching, with one manager described as hoping advertisers would not notice and cut bids or spend [26][25].
A skeptic has a reasonable answer to all of this. Luke Stillman of Madison and Wall does not expect Amazon's ad business to take a major hit, because advertisers decide where to spend based on whether the advertising works and what it returns, which he says is truer in commerce media than in any other channel [21]. Amazon makes a related argument, saying marketers adjust bids on performance rather than auction mechanics [29]. That is probably right about revenue, and it is also why the gap persists: return-based buying treats the clearing price as an input it never audits, so a quiet margin produces no trigger. Stillman also notes that if Amazon were forced to change its auction dynamics, prices could fall in the short term to advertisers' benefit [22], which means the upside arrives, if it arrives, from a remedy buyers do not control.
Which leaves the part operators can act on. Ebiquity's Ruben Schreurs is telling clients to remain calm and pragmatic about what are still allegations, and to quantify what they spent on the ad products named in the suit over the period it covers [17][18]. His second suggestion is the cheaper one: obtain a statement from Amazon confirming that none of their spending was exposed, which preserves a claim later [19]. Alan Chapell's point is that independent efficacy checks were already the right investment and now warrant more [20], and Nick Manning's is blunter, that walled gardens and black boxes hold all the cards [15]. The record also shows repeated transparency scandals have not dented platform spending, as CMOs lean harder on the largest platforms for audiences, targeting and measurement [23]. This quarter the choice is whether to fund measurement you own; next quarter that choice determines whether the exposure question is one you can answer yourself or one you have to ask Amazon to answer for you.
Ranked by verification strength, evidence, and original report placement.
The FTC and 22 states sued Amazon on Monday, alleging the online retailer "secretly and systematically overcharged" advertisers on Amazon.com.
The lawsuit alleges undisclosed surcharges were applied for seven years, increasing the prices that more than 1 million Amazon brands and sellers were required to pay to advertise on the platform.
The complaint alleges the scheme likely extracted more than $20 billion from advertisers since it began in late 2018.
Amazon called the action a "misguided lawsuit" and said that after reviewing approximately 1.5 million pages spanning six years, the FTC leans on a handful of simplified communications to allege a companywide effort to deceive, which Amazon called "patently false".
Internal documents show one manager allegedly describing Amazon's pricing strategy as "hoping that advertisers don't notice and decrease bids or ad spend".
The suit alleges Amazon tested how much it could increase the amount it charges without advertisers flinching.
Distinct publishers with included, body-backed reporting in this cluster.
businessinsider.com
1 article · September 2, 2026
cbsnews.com
1 article · August 31, 2026
forbes.com
1 article · August 31, 2026
theguardian.com
1 article · August 31, 2026
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Evidence-backed comparisons of source perspectives and observed adoption signals. Read the methodology
Which Builder, Operator, and Investor concerns the observed source mix emphasized—not a truth score.
Evidence, demonstrated adoption, hype gap, incentives, and confidence are assessed independently, each on its own current evidence. How these are measured.
Four retellings of one complaint
Every load-carrying number — $20 billion, 1.2 million accounts, seven years, the manager's quote about advertisers not noticing — originates in a complaint filed the same morning, and no outlet here has seen an auction log. The consistency across CBS News, Forbes, the Guardian and Business Insider measures the filing's clarity, not its accuracy. Amazon's counter-figures are no better attested: they come from its own blog post, unaudited. What lifts this above a press-release cluster is that Business Insider describes the alleged mechanism precisely enough to be tested, and the Guardian quotes documents rather than only officials.
Priced, not repriced
Observable behaviour so far amounts to one afternoon's 3% share move and a set of consultants telling clients to stay calm and go pull their invoices. The only instance of advertisers actually withholding money — the 24-hour platform boycott by the 700-plus Million Dollar Sellers group — happened in April over unrelated policy changes and is cited as precedent, not consequence. Madison and Wall's expectation that commerce-media spend keeps following returns is the base case, and nothing in this reporting contradicts it.
An allegation wearing a price tag
The $20 billion travels because it is round, large and attached to a familiar defendant. Divided by the seven years and the 1.2 million accounts the agency itself names, it is about $2.9 billion a year and roughly $16,700 per advertiser — real money, and about 4.2% of one year's site ad revenue. The outlets are careful with "alleges", so the overstatement lives in presentation rather than in the facts: Forbes's Big Number treatment does the most lifting, and Amazon's rebuttal statistics only reach readers of one story. Business Insider pulls the other direction by quoting the analyst who thinks the business barely flinches.
Nobody quoted here is disinterested
The FTC chair and a bipartisan bloc of attorneys general got a press conference out of a number with a "b" in it, and California's Rob Bonta made the coalition itself part of the message. Amazon's exculpatory statistics were produced by the party defending a $68bn revenue line. And three of the advisers in Business Insider — Ebiquity, Encyclomedia, Madison and Wall — sell precisely the audit, price-setting and independent-measurement work they recommend buyers now purchase. None of that makes anyone wrong; it does mean every figure in this story arrived with a purpose.
Firm on the filing, thin on the merits
Who sued, when, for how much, and what each side says are all nailed down by four independent accounts. Past that the ground softens fast: whether a soft reserve was actually used, whether any of it reached shoppers' receipts, and what a court will do all rest on one unadjudicated complaint answered by one blog post. Even the timeline wobbles — late 2018 in Business Insider, 2019 in the Guardian — which is a small tell about how much of this is still being read off a summary rather than the record.