CIRP: the number of Amazon Prime members in the US remained at 172M as of June 30, the same as six months earlier, after Amazon raised prices in February 2022
Amazon.com Inc.'s number of Prime members in the US stagnated in the first half of the year, suggesting a $20 annual price increase … Tweets: @rakeshlobster and @spencersoper Tweets: Rakesh Agrawal / @rakeshlobster : Nice to have such price inelasticity. https://twitter.com/... @spencersoper : Looks like $139 a year for Amazon Prime is a bit much for some folks. Growth stagnated in the US so far this year. They had to hit the ceiling eventually. https://www.bloomberg.com/...
Context & Ripple Effects
CIRP's tracking shows Prime's US growth curve bending long before this plateau: membership doubled to 85M subscribers by mid-2017, then decelerated sharply, adding only 12M over the following year while members spent $1,400 annually versus $600 for non-members. Against that backdrop, Amazon pushed through its first major fee increase — $20 to $139 per year starting February 2022 — betting that the spending gap made existing members too sticky to lose.
The June 30 reading of 172M, unchanged from six months earlier, is the first flat print in CIRP's series: the fee increase went through without visible member losses, but also without the net additions that carried every prior period.
First-order effects
- Amazon pockets roughly $20 more per renewing US member with no attrition showing up in the headline count — the price bet paid off on retention, at least through June.
- Growth has stalled entirely: whatever new signups Amazon adds are being offset by cancellations among marginal members who balked at $139, meaning the US base no longer compounds on its own.
Second-order effects
- With US membership saturated, Amazon's Prime economics shift toward squeezing more value per existing member — deeper bundles across delivery, devices, and media — rather than acquiring households it already can't convert.
- Rival subscription programs get their opening: shoppers priced out or never converted at $139 are the addressable pool for Walmart-style competing memberships, turning Prime's ceiling into someone else's growth market.
Third-order effects
- If the pattern holds, US retail memberships follow the classic S-curve: once penetration approaches the ceiling of willing households, fee increases replace member growth as the monetization lever, and investors reprice these programs on revenue-per-member rather than subscriber counts.
- A flat US base raises the stakes on international expansion and non-retail attach (ads, content, devices) to keep the Prime flywheel spinning — the membership itself stops being the growth story.
The trend: US subscription commerce is entering its saturation phase, where incumbents like Amazon trade member growth for price and the battleground shifts to converting each other's non-members.