Amazon Ad Growth Cools to 11% After Prime Day Shift

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Amazon ad growth cools to 11%

Amazon’s advertising machine hit a slower gear in the third quarter of 2026, and the earnings miss that followed shows how much calendar timing and currency can move a headline number.

Ad growth drops from 26% to 11%

Advertising revenue at Amazon grew 11% year over year in Q3, a sharp step down from 26% in the second quarter and from roughly 22% across the previous four quarters. The company pointed to two mechanics: Prime Day ran in Q2 for most larger markets, pulling ad spend earlier into the year, and unfavorable foreign exchange rates trimmed reported international revenue.

The softer advertising showing fed a broader miss. Amazon posted $201.9 billion in net sales and diluted EPS of $1.89, just below the $202.31 billion and $1.96 that LSEG’s consensus expected. Shares fell 4% in after-hours trading.

A calendar effect, not necessarily a demand problem

For media planners, the Prime Day shift is the kind of factor that distorts year-over-year comparisons. When a major sales event moves from one quarter to another, the period it leaves behind faces a hard comparison while the earlier quarter gets an artificial lift. Currency does something similar: a stronger dollar shrinks reported international ad dollars even when local demand is steady.

The practical read is to avoid treating the 11% figure as a demand cliff. The combined Q2 and Q3 performance, or a foreign-exchange-adjusted view, is a cleaner signal of underlying ad momentum. Still, the slowdown deserves a hard look in the fourth quarter, when holiday retail media dollars should show whether growth rebounds toward the prior 20%-plus range.

AWS accelerates while retail stays quiet

Amazon Web Services was the bright spot. AWS revenue rose 39% year over year to $46 billion, its fastest pace in nearly five years and well above the 20% growth recorded in Q3 2025. CEO Andy Jassy said the company expects AWS growth above 40% in both 2027 and 2028, and called the segment’s annualized revenue run rate $184 billion.

“There has never been a trillion dollar revenue business, and we may have two of them in the next 5-10 years,” Jassy said.

Retail was steadier: North American revenue rose 6% to $112.9 billion, while international grew 5% to $43.1 billion. That makes AWS the earnings engine carrying the stock story while advertising faces a noisy quarter.

What this means for ad buyers

For entertainment marketers and media planners buying Amazon inventory, the takeaway is to build timing sensitivity into forecasts:

  • Compare Q2 and Q3 together when Prime Day or other sales events shift quarters.
  • Track foreign-exchange-adjusted ad growth before judging international demand.
  • Rebase Q4 assumptions only if the holiday quarter fails to show a rebound.

The next check is Q4: a bounce back toward the low-20s would confirm Q3 was mostly a calendar artifact. A repeat near 11% would be a signal to reassess how aggressively advertisers are pressing Amazon’s retail media and streaming ad products.

Source: Variety


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