David Einhorn and Carlos Tavares
One built a hedge fund from less than $1 million and became famous for betting against companies that others trusted, including Lehman Brothers before its collapse. The other spent four decades in the auto industry, rescuing struggling carmakers and then leading the merger that created Stellantis, the maker of Jeep, Ram, Peugeot, and Fiat.
David Einhorn and Carlos Tavares have no documented business deal or personal connection. They work in different industries on different continents. But people often search for David Einhorn and Carlos Tavares together, and comparing them offers a look at two very different kinds of corporate power: the outside investor who questions companies and the inside leader who runs them.
This article covers their backgrounds, education, career highlights, and where they are in 2026.
Quick Facts
| David Einhorn | Carlos Tavares | |
|---|---|---|
| Full name | David Michael Einhorn | Carlos Antunes Tavares |
| Born | November 20, 1968 | August 14, 1958 |
| Birthplace | New Jersey, USA | Lisbon, Portugal |
| Education | Cornell University (B.A.) | École Centrale Paris (engineering) |
| Known for | Founding Greenlight Capital | Leading PSA Group and Stellantis |
| Famous move | Shorting Lehman Brothers before 2008 | Turning around PSA, creating Stellantis |
| Side passion | Poker | Motor racing |
Is There a Connection Between David Einhorn and Carlos Tavares?
There’s no public record of Greenlight Capital taking a major public position on Stellantis or of any meeting between the two men. Einhorn invests across many industries, while Tavares spent his career running automakers. The pairing likely comes from interest in comparing high-profile figures in finance and industry.
David Einhorn: Early Life and Education
David Einhorn was born on November 20, 1968, in New Jersey, and grew up in Wisconsin. He graduated from Cornell University in 1991 with a degree in government. After college, he worked at the investment firm Siegler, Collery & Co.
David Einhorn: Career Timeline
- 1996: Co-founded Greenlight Capital with about $900,000, much of it from his parents.
- 2002: Publicly criticized Allied Capital, a business lender, and bet against its stock. The fight lasted years.
- 2004: Helped found Greenlight Re, a reinsurance company based in the Cayman Islands.
- 2006: Finished 18th in the World Series of Poker Main Event and donated his winnings, about $660,000, to the Michael J. Fox Foundation.
- 2008: Published Fooling Some of the People All of the Time, a book about his Allied Capital battle. He also warned publicly about Lehman Brothers’ accounting months before the bank failed.
- 2010s: Became known for high-profile short positions and activist campaigns, including pushing Apple to return more cash to shareholders.
- 2020s: Continued running Greenlight Capital and sharing his views in quarterly investor letters.
Carlos Tavares: Early Life and Education
Carlos Tavares was born on August 14, 1958, in Lisbon, Portugal. He moved to France for his education and graduated from the École Centrale Paris, one of France’s top engineering schools, in 1981.
Carlos Tavares: Career Timeline
- 1981: Joined Renault as a test driver and engineer.
- 2004 to 2011: Held senior roles at Nissan, Renault’s alliance partner, including running its operations in the Americas.
- 2011: Became chief operating officer of Renault.
- 2014: Became CEO of PSA Group, the maker of Peugeot and Citroën, and led a major turnaround.
- 2017: Led PSA’s purchase of Opel and Vauxhall from General Motors.
- 2021: Became the first CEO of Stellantis, formed by the merger of PSA and Fiat Chrysler.
- 2024: Stellantis had announced he would retire when his contract ended in early 2026, but he resigned early, on December 1, 2024, amid falling sales and tension with dealers and unions.
- 2025: Stellantis named Antonio Filosa as its new CEO.
Tavares is a lifelong car enthusiast who has raced in amateur motorsport events.
How Their Careers Compare
| Category | David Einhorn | Carlos Tavares |
|---|---|---|
| Industry | Finance and investing | Automotive |
| Role | Outside investor | Inside executive |
| Famous for | Short selling and activism | Turnarounds and mergers |
| Biggest win | Calling Lehman Brothers’ risks | Creating Stellantis |
| Public image | Analytical, skeptical | Demanding, cost-focused |
| Hobby | Poker | Motor racing |
Investor vs. Operator
The biggest difference between David Einhorn and Carlos Tavares is how they relate to companies.
Einhorn studies businesses from the outside. When he thinks a company is overvalued or hiding problems, he bets against it and sometimes says so publicly. When he thinks a company is undervalued, he buys in and may push for change.
Tavares worked from the inside. His job was to cut costs, raise profit margins, and make factories more efficient. At PSA and early in his Stellantis years, that approach delivered strong profits, though critics later said deep cost cuts hurt quality and dealer relationships.
What David Einhorn and Carlos Tavares Have in Common
- Bold decisions: Both made risky calls that others avoided.
- Strong opinions: Both are known for speaking bluntly.
- Numbers focus: Einhorn studies financial statements closely. Tavares was famous for tight cost control.
- Competitive hobbies: Einhorn plays high-stakes poker. Tavares races cars.
- Global reach: Einhorn invests worldwide. Tavares ran companies with factories on several continents.
Lessons From Their Careers
- Do your homework. Einhorn’s Lehman warning came from careful study of the bank’s books.
- Fix what’s broken. Tavares turned PSA from a struggling company into a profitable one.
- Know when to change course. Tavares’s exit shows how quickly leaders can lose support.
- Stand by your research. Einhorn held his Allied Capital position through years of pushback.
Where Are They Now?
David Einhorn continues to run Greenlight Capital, sharing his views in investor letters and occasional interviews.
Carlos Tavares left Stellantis in December 2024 and has kept a lower profile since. Stellantis continues under new leadership.
Where to Learn More
For David Einhorn, read Fooling Some of the People All of the Time and his Greenlight Capital investor letters. For Carlos Tavares, business coverage of PSA’s turnaround and the Stellantis merger gives the clearest picture of his career.
Two Management Philosophies
Einhorn’s investing style combines value investing with short selling. Greenlight buys companies it thinks are cheap and bets against companies it thinks are overpriced or poorly run. The fund posted strong returns in its early years, went through a difficult stretch in the late 2010s, and later rebounded. Einhorn shares his thinking in quarterly letters that investors read closely.
Tavares’s management style focused on efficiency. He was known for pushing hard on costs, simplifying operations, and demanding high profit margins. That approach helped Stellantis post record profits early on. Later, critics argued that deep cuts hurt product quality and relations with US dealers, and his pay package drew public criticism in Europe. His experience shows how a strategy that works in good times can come under pressure when sales fall.
Both approaches rely on discipline. Einhorn applies it to research and risk. Tavares applied it to factories and budgets.
In Short
In short, Einhorn’s career shows the power of independent research and the courage to bet against popular opinion. Tavares’s career shows how far strong operational discipline can take a company, and how quickly support can fade when results slip. Both men built reputations as tough, data-driven leaders. Their stories are useful for anyone interested in how money and management shape the companies we rely on every day, from car loans to retirement funds.
Final Thoughts
David Einhorn and Carlos Tavares took very different paths through the business world. Einhorn built a hedge fund on careful research and bold bets, including his famous warnings about Lehman Brothers. Tavares rose through the auto industry, rescued PSA, and led the creation of Stellantis before an early exit. Comparing David Einhorn and Carlos Tavares shows two sides of corporate power: the skeptic on the outside and the boss on the inside.
Key Takeaways
- David Einhorn was born November 20, 1968, in New Jersey. Carlos Tavares was born August 14, 1958, in Lisbon, Portugal.
- There’s no documented business deal or personal connection between David Einhorn and Carlos Tavares.
- Einhorn graduated from Cornell in 1991, co-founded Greenlight Capital in 1996 with about $900,000, and became famous for warning about Lehman Brothers before 2008.
- Einhorn finished 18th at the 2006 World Series of Poker Main Event and donated his winnings to the Michael J. Fox Foundation.
- Tavares graduated from École Centrale Paris, worked at Renault and Nissan, and turned around PSA Group as CEO from 2014.
- Tavares became Stellantis’s first CEO in 2021 and resigned on December 1, 2024, earlier than his planned 2026 retirement.
- One is an outside investor and the other an inside operator, but both are known for bold calls and blunt opinions.
