David Einhorn and Carlos Tavares
One made his name betting against companies he believed were hiding problems, from Allied Capital to Lehman Brothers. The other made his name rescuing struggling carmakers by slashing costs, then built one of the largest auto groups on Earth. David Einhorn and Carlos Tavares live in different worlds, but both earned reputations as blunt, numbers-first operators who don’t mind upsetting people.
There’s no known business deal or personal connection between David Einhorn and Carlos Tavares. Still, their paths cross in an interesting place: the car industry. Einhorn has spent years pushing and criticizing automakers as an investor, while Tavares spent decades running them. This article explores their backgrounds, careers, and where each stands in 2026.
Quick Facts
| Detail | David Einhorn | Carlos Tavares |
|---|---|---|
| Born | November 20, 1968, New Jersey | August 14, 1958, Lisbon, Portugal |
| Age in 2026 | 57 | 68 |
| Education | BA in government, Cornell University | Engineering degree, École Centrale Paris |
| Known for | Founding Greenlight Capital | Leading PSA Group and Stellantis |
| Famous move | Shorting Lehman Brothers before its collapse | Turning around PSA and creating Stellantis |
| Status in 2026 | Running Greenlight Capital | Former Stellantis CEO, out since December 2024 |
David Einhorn: The Short Seller With a Value Eye
Early Life and Education
David Einhorn was born in New Jersey and grew up in Wisconsin, where his father worked in finance. He studied government at Cornell University, graduating in 1991. He started his career at an investment bank, then joined a small hedge fund, where he learned to dig deep into company financial statements.
Career Timeline
- 1991: Began working on Wall Street after college.
- 1996: Founded Greenlight Capital with about $900,000, much of it from his parents.
- 2002: Openly questioned the accounting at Allied Capital, sparking a long and bitter fight with the company.
- 2004: Co-founded Greenlight Re, a reinsurance company based in the Cayman Islands.
- 2006: Finished 18th in the main event of the World Series of Poker and donated his winnings to the Michael J. Fox Foundation.
- 2007 to 2008: Bet against Lehman Brothers and warned in public about its balance sheet months before the bank collapsed.
- 2008: Published Fooling Some of the People All of the Time, his book about the Allied Capital saga.
- 2010s: Took high-profile positions in Apple and General Motors and bet against Tesla, which he criticized for years.
- 2017: Pushed GM to split its stock into two classes. Shareholders rejected the plan.
- 2022: Greenlight gained more than 36 percent, recovering losses from tough years in 2015 and 2018.
- 2026: Continues to run Greenlight with a value-investing approach and a long-standing position in gold.
Einhorn’s Style
Einhorn is known for deep research and a willingness to stand alone. He often presents short ideas at investment conferences, laying out in detail why he thinks a stock is overvalued. When he’s right, the payoff can be huge. When he’s wrong, he says so and moves on.
Carlos Tavares: The Turnaround Specialist
Early Life and Education
Carlos Tavares grew up in Lisbon. His father was an accountant and his mother a French teacher. He attended the French school in Lisbon, Lycée Français Charles Lepierre, then moved to France to study engineering at the École Centrale Paris, graduating in 1981. He has been a car lover since childhood and races cars as a hobby.
Career Timeline
- 1981: Joined Renault as a test driver and engineer.
- 2004: Moved to Nissan, Renault’s alliance partner, eventually leading its operations in the Americas.
- 2011: Became Renault’s chief operating officer.
- 2013: Left Renault after saying publicly that he wanted to run a major car company.
- 2014: Took over PSA Peugeot Citroën, which was losing money. Within two years, he returned it to profit.
- 2017: Bought Opel and Vauxhall from General Motors and turned them around.
- 2021: Became the first CEO of Stellantis, formed by merging PSA with Fiat Chrysler. The group owns Jeep, Ram, Peugeot, Fiat, Alfa Romeo, and more.
- 2023: Faced criticism over pay packages worth tens of millions of euros.
- 2024: Sales and profits fell hard in the US. Tavares resigned on December 1, 2024, more than a year before his planned retirement.
- 2025: Stellantis named Antonio Filosa as its new CEO.
Tavares’s Style
Tavares is famous for discipline and cost control. He set aggressive margin targets, cut factory costs, and trimmed models that didn’t make money. Supporters credit him with saving PSA and Opel. Critics argue that his cost cuts and high prices hurt Stellantis’s US dealers and sales.
Where Their Worlds Meet: The Car Business
David Einhorn and Carlos Tavares both have strong views on the auto industry.
| Auto Industry Role | David Einhorn | Carlos Tavares |
|---|---|---|
| Position | Outside investor | Inside operator |
| Big bet | Long GM, short Tesla | Merged PSA and Fiat Chrysler |
| View on EVs | Long skeptical of Tesla’s valuation | Warned that EVs were too expensive for many buyers |
| Main focus | Stock value and capital structure | Profit margins and costs |
| Outcome | Mixed results on GM and Tesla calls | Record profits, then a sharp slump and exit |
Einhorn treated carmakers as investments, judging them by valuation and how they used capital. Tavares ran them from the inside, judging success by margins and cash flow. Both were skeptical of the hype around electric vehicles at times, warning about costs and expectations.
Lessons From Their Careers
- Do the homework. Einhorn’s best calls came from reading financial filings line by line. Tavares knew factory costs down to the detail.
- Be willing to be unpopular. Einhorn faced lawsuits and attacks from companies he shorted. Tavares faced anger from unions, dealers, and politicians.
- Results matter, but so does timing. Einhorn’s Lehman call made his name. Tavares’s high-margin strategy worked until the US market turned.
- Admit mistakes. Einhorn has written with candor about losing years. Tavares stepped aside when results fell short.
Why People Search for Them Together
Searches for David Einhorn and Carlos Tavares often come from readers interested in tough-minded business leaders. Both are known for bold, data-driven decisions and for clashing with powerful opponents. Both also illustrate a key tension in modern business: the gap between what investors want and what operators can deliver.
There’s also a European-American angle. Einhorn is an American hedge fund manager. Tavares is a Portuguese executive who led French and Italian-American companies. Looking at David Einhorn and Carlos Tavares together shows how global finance and global manufacturing intersect.
Life Beyond Work
- Einhorn is a serious poker player and a major donor to causes including Robin Hood, a New York charity fighting poverty. He and his wife, Cheryl, have three children.
- Tavares is an amateur racing driver who has competed in endurance races. He also owns vineyards and has invested in businesses in his home country of Portugal.
How Each Handles Criticism
David Einhorn and Carlos Tavares have both faced intense criticism, and their responses say a lot about them.
Einhorn’s short campaigns have drawn lawsuits, regulatory investigations, and personal attacks from the companies he targeted. During the Allied Capital fight, the company accused him of manipulating its stock. Investigators later found serious problems at Allied, and Einhorn’s view was backed up in large part. He has said that short selling is lonely work, because almost no one wants to hear that a popular company has problems.
Tavares faced criticism from a different direction. Unions in Europe and the US accused him of cutting too deep. American dealers complained about high prices and too much unsold inventory. Politicians in Italy and France questioned his commitment to local factories. Tavares often answered with blunt statements about competition and costs, which won him respect in some circles and anger in others.
Looking at David Einhorn and Carlos Tavares together shows two leaders who never chased popularity. Both believed that hard numbers matter more than comfortable stories, and both were willing to pay a price for that belief.
Final Thoughts
David Einhorn and Carlos Tavares represent two sides of business. Einhorn is the outside critic, digging through numbers to spot weakness. Tavares was the inside boss, cutting costs to build strength. Both earned fame and fortune by being tougher and more disciplined than their rivals, and both faced fierce criticism along the way.
In 2026, Einhorn is still running Greenlight, while Tavares has stepped away from Stellantis after one of the most dramatic careers in the car industry.
Key Takeaways
- David Einhorn was born November 20, 1968, and studied government at Cornell. Carlos Tavares was born August 14, 1958, in Lisbon and studied engineering at École Centrale Paris.
- There’s no known business connection between David Einhorn and Carlos Tavares, but both have strong ties to the car industry.
- Einhorn founded Greenlight Capital in 1996 and became famous for shorting Allied Capital and Lehman Brothers.
- Einhorn pushed GM to split its stock in 2017 and spent years betting against Tesla.
- Tavares turned around PSA, bought Opel, and became the first CEO of Stellantis in 2021.
- Tavares resigned from Stellantis on December 1, 2024, after US sales slumped. Antonio Filosa took over in 2025.
- Both are known for blunt, numbers-first decisions and for being willing to stand alone.
