• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia

Trendingnow

1

Egg companies made $1.22 billion in profit off a $6 carton — now they’re buying their way out of a price-fixing case with 53 million donated eggs

2

Meet the Zillennials: The luckiest micro-generation in the workforce, born between 1993 and 1998

3

Even as Elon Musk calls philanthropy ‘very hard,’ every day Americans gave a record $617 billion—despite feeling the squeeze over the cost of living

1

Egg companies made $1.22 billion in profit off a $6 carton — now they’re buying their way out of a price-fixing case with 53 million donated eggs

2

Meet the Zillennials: The luckiest micro-generation in the workforce, born between 1993 and 1998

3

Even as Elon Musk calls philanthropy ‘very hard,’ every day Americans gave a record $617 billion—despite feeling the squeeze over the cost of living

The algebra of iTunes

By
Philip Elmer-DeWitt
Philip Elmer-DeWitt
Down Arrow Button Icon
By
Philip Elmer-DeWitt
Philip Elmer-DeWitt
Down Arrow Button Icon
June 15, 2013, 12:40 PM ET
Add Fortune on Google for similar content.

Source: Asymco.com

FORTUNE — In a post titled “What’s an iTunes user worth?” Asymco’s Horace Dediu used the number of iTunes accounts Apple (AAPL) CEO Tim Cook announced Monday — 575 million — to draw the graph at right. It shows user accounts growing nearly six fold since 2009 — a growth rate of nearly half a million per day, or 44% compounded annually.

He also calculated iTunes revenue per user over the same four years and found it had fallen from nearly $74 per year to less than $40.

“One would expect such a decline as a user base expands,” he wrote, “and this approximate 50% decline in revenues per account seems reasonable for a six-fold base increase.”

Really? I’m pretty sure that I’m spending a lot more on Apple stuff these days than I was four years ago.

So I asked Dediu the dumb question: Why does a 50% decline in revenues per account seem reasonable for a six-fold base increase?

Click to enlarge.

“I thought it might have been obvious,” he replied. “but the latest 500 million users are not the same as the first 100 million. Namely, they are less likely to spend on media (or anything else) because they are less wealthy or live in countries which don’t have the same patterns of consumption. The first 100 million iTunes users were in the U.S. and Europe. The latest 500 million are more likely to be in China, Asia the Middle East and Eastern Europe.”

OK. That makes sense.

What makes less sense is the precipitous decline in another chart in the same post, reproduced below.

Source: Asymco.com

“It shows that for a number of years,” Dediu explains, “Apple’s users were valued (implicitly by the stock market) as likely to create a net present value of about $1200 in earnings. The current value is about a third of that, or $440 in earnings. Today’s expectation is therefore that each current customer will buy the equivalent of 1.8 iPhones. And nothing more, ever. A few months ago it was expected that each customer would buy three times as much.

“Although the rate of spending of each customer is decreasing, the number of new customers is increasing more rapidly. As this is happening the company’s equity is being priced such that an Apple user is considered less than half as valuable as she used to be—from 3.2x revenues to 1.5x revenues. This change in user value has been quite abrupt, happening only within the last nine months. What could justify a drop in user value would be a drop in customer satisfaction or loyalty. So far, I have seen no evidence of this happening.”

For a lively discussion about why the market values iTunes users the way it does, go to Asymco.com.

About the Author
By Philip Elmer-DeWitt
See full bioRight Arrow Button Icon
Add Fortune on Google for similar content.

Latest in

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in

Trump allies double down on efforts to reshape Federal Reserve
PoliticsFederal Reserve
Trump allies double down on efforts to reshape Federal Reserve
By Saleha Mohsin, Joshua Green and BloombergJuly 4, 2026
54 minutes ago
Ukrainian drones target more Russian oil infrastructure as fuel crisis adds political pressure on Putin, who shrugs off attacks as ‘not critical’
EnergyUkraine invasion
Ukrainian drones target more Russian oil infrastructure as fuel crisis adds political pressure on Putin, who shrugs off attacks as ‘not critical’
By The Associated PressJuly 4, 2026
1 hour ago
Costco CEO promises the $1.50 hot dog isn’t going away: ‘The price will not change as long as I’m around’
RetailCostco
Costco CEO promises the $1.50 hot dog isn’t going away: ‘The price will not change as long as I’m around’
By Sydney LakeJuly 4, 2026
2 hours ago
Older worker sad at laptop
SuccessGen X
A quarter of young baby boomers and Gen Xers who’ve been laid off in the last decade are still unemployed—and 11% have taken pay cuts to work
By Emma BurleighJuly 4, 2026
3 hours ago
usa
North Americahistory
Before independence, America tried — and failed — to conquer Canada
By Sarah M.S. Pearsall and The ConversationJuly 4, 2026
3 hours ago
The 1964 box set that predicted Dylan going electric — and still explains American music today
Arts & EntertainmentMusic
The 1964 box set that predicted Dylan going electric — and still explains American music today
By Ted Olson and The ConversationJuly 4, 2026
3 hours ago

Most Popular

Egg companies made $1.22 billion in profit off a $6 carton — now they’re buying their way out of a price-fixing case with 53 million donated eggs
Law
Egg companies made $1.22 billion in profit off a $6 carton — now they’re buying their way out of a price-fixing case with 53 million donated eggs
By Wyatte Grantham-Philips and The Associated PressJuly 2, 2026
2 days ago
Meet the Zillennials: The luckiest micro-generation in the workforce, born between 1993 and 1998
AI
Meet the Zillennials: The luckiest micro-generation in the workforce, born between 1993 and 1998
By Nick LichtenbergJuly 3, 2026
1 day ago
Even as Elon Musk calls philanthropy ‘very hard,’ every day Americans gave a record $617 billion—despite feeling the squeeze over the cost of living
Success
Even as Elon Musk calls philanthropy ‘very hard,’ every day Americans gave a record $617 billion—despite feeling the squeeze over the cost of living
By Preston ForeJuly 4, 2026
9 hours ago
Economists have found an answer to slowing cognitive decline: Avoid retiring early, study finds
Economy
Economists have found an answer to slowing cognitive decline: Avoid retiring early, study finds
By Sasha RogelbergJuly 2, 2026
2 days ago
$25 billion CEO says one-hour interviews are a waste of time—he puts candidates through six hours of tests and wants them to order wine at lunch
Success
$25 billion CEO says one-hour interviews are a waste of time—he puts candidates through six hours of tests and wants them to order wine at lunch
By Orianna Rosa RoyleJuly 3, 2026
1 day ago
On Wall Street, analysts increasingly don’t believe the U.S. government’s 'misleading' job numbers
Economy
On Wall Street, analysts increasingly don’t believe the U.S. government’s 'misleading' job numbers
By Jim EdwardsJuly 3, 2026
1 day ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.