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

What the Father of Card Counting Has to Say About Investing

By
Anne VanderMey
Anne VanderMey
Down Arrow Button Icon
By
Anne VanderMey
Anne VanderMey
Down Arrow Button Icon
December 24, 2016, 10:00 AM ET
Courtesy of Random House

We caught up with Ed Thorp, an investor who is also widely regarded as the inventor of card counting and the father of wearable computers. In his new book, A Man for All Markets, he aims to do for stock investing what he did for blackjack. Here’s how:

“Donald Trump’s election shocked the nation, but from a statistical perspective, it shouldn’t have. The margin of error in most polls was larger than the difference between the candidates, so the underdog had good chances from a gambler’s perspective. Like polls, markets can be wrong too. As an investor, I constantly watch for where conventional wisdom could miss. Markets are mostly good at predicting outcomes, but very bad at anticipating black-swan events.”

A version of this article appears in the January 1, 2017 issue of Fortune with the headline “When the Markets Screw Up.”

About the Author
By Anne VanderMey
See full bioRight Arrow Button Icon

Latest in Leadership

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
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
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
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Leadership

Have a strong brand in a world of noise—it’s like having the only red T-shirt in a stadium full of white ones
MagazineVolvo
Have a strong brand in a world of noise—it’s like having the only red T-shirt in a stadium full of white ones
By Kamal AhmedApril 2, 2026
16 minutes ago
In the age of AI anxiety, the 100 Best Companies to Work For are betting on their people
NewslettersCEO Daily
In the age of AI anxiety, the 100 Best Companies to Work For are betting on their people
By Diane BradyApril 2, 2026
2 hours ago
Gen Z fled San Francisco for Texas and Florida. Now they’re turning ‘welcomer cities’ into the next big tech towns
Real EstateGen Z
Gen Z fled San Francisco for Texas and Florida. Now they’re turning ‘welcomer cities’ into the next big tech towns
By Sydney LakeApril 2, 2026
2 hours ago
Macquarie bets impact investing can fill an Asian financial access gap for the ‘missing middle’
AsiaAustralia
Macquarie bets impact investing can fill an Asian financial access gap for the ‘missing middle’
By Nicholas GordonApril 1, 2026
13 hours ago
jamie dimon
Workplace Culturereturn to office
Jamie Dimon, office-work champion, vows his anti-remote culture ‘would crush you.’ The economy’s top talent begs to differ
By Jake AngeloApril 1, 2026
15 hours ago
Ayesha and Stephen Curry
C-Suitephilanthropy
Warren Buffett revives his legendary charity lunch auction—this time with Stephen Curry. His last one raised $19 million
By Jacqueline MunisApril 1, 2026
16 hours ago

Most Popular

Two-thirds of parents say their adult Gen Z kids still rely on them financially  for support—even though it's putting them under strain
Success
Two-thirds of parents say their adult Gen Z kids still rely on them financially  for support—even though it's putting them under strain
By Fortune EditorsMarch 31, 2026
2 days ago
Jerome Powell says the $39 trillion national debt is ‘not unsustainable,’ but warns the trajectory ‘will not end well’
Economy
Jerome Powell says the $39 trillion national debt is ‘not unsustainable,’ but warns the trajectory ‘will not end well’
By Fortune EditorsMarch 30, 2026
3 days ago
Current price of gold as of April 1, 2026
Personal Finance
Current price of gold as of April 1, 2026
By Fortune EditorsApril 1, 2026
21 hours ago
Current price of oil as of April 1, 2026
Personal Finance
Current price of oil as of April 1, 2026
By Fortune EditorsApril 1, 2026
22 hours ago
A man used AI to call 3,000 Irish bartenders to track the cost of Guinness. Now pubs are lowering their prices to compete
AI
A man used AI to call 3,000 Irish bartenders to track the cost of Guinness. Now pubs are lowering their prices to compete
By Fortune EditorsMarch 30, 2026
3 days ago
Hiring just hit a level not seen since the economy was ‘closed down literally’ during COVID, top economist says
Economy
Hiring just hit a level not seen since the economy was ‘closed down literally’ during COVID, top economist says
By Fortune EditorsMarch 31, 2026
2 days 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.