Entrepreneurs
Thomas Peterffy Net Worth
| Net Worth: | $17 Billion |
|---|---|
| Age: | 82 |
| Born: | January 1, 1944 |
| Gender: | Male |
| Height: | 1.80 m (5 ft 11 in) |
| Country of Origin: | Hungary |
| Source of Wealth: | Entrepreneur |
| Last Updated: | Mar 8, 2026 |
Introduction
Thomas Peterffy is a Hungarian-born American billionaire businessman with an estimated net worth of $17 Billion.
Net Worth History
| Year | Net Worth |
|---|---|
| 2016 | $11.1 Billion |
| 2017 | $13.8 Billion |
| 2018 | $20.3 Billion |
| 2019 | $17.1 Billion |
| 2020 | $14.3 Billion |
| 2021 | $25 Billion |
| 2022 | $20.1 Billion |
| 2023 | $25.3 Billion |
| 2024 | $34 Billion |
| 2025 | $57.3 Billion |
Career Overview
After emigrating to the United States in 1965 following the Hungarian Revolution, Peterffy began a career as an architectural draftsman in New York City. He volunteered to help program a computer at his engineering firm, which sparked his interest in technology and led him to investigate other opportunities.
Thomas left the engineering company and bought a seat on the American Stock Exchange to trade options. He pioneered automation and technology in financial trading, writing code in his head during trading days and implementing it after hours.
Introducing New Technology On The Trading Floor
Peterffy introduced handheld computers to the trading floor in the early 1980s, and his AMEX seat business eventually evolved into Interactive Brokers. He stepped down as CEO of Interactive Brokers in 2019, choosing to relocate to Budapest for the company’s European headquarters due to “unique Hungarian logic.” His impact on the financial system was impressive, and in 2023, Tomas contributed to the launch of the news website The Messenger.
He also successfully advocated for the electronic linking of U.S. options markets in the 1990s and testified before the U.S. Senate on banking regulations. Drawing on his traumatic personal experiences in Eastern Europe, he created anti-socialist political ads during the 2012 American presidential campaign.
Supporting The Republican Party
He registered as an independent voter but donated to the Republican Party, supporting Donald Trump in the 2016 election due to his anti-socialist stance.
However, in 2023, he distanced himself from Donald Trump and expressed hope for a brokered convention due to the divisions within the Republican Party. After founding Interactive Brokers, he became chairman and led the company to become one of the leading online brokerage firms.
Peterffy co-founded OneChicago, an all-electronic exchange for single-stock futures, a business that flourished in the years following its incorporation. The Chicago Board Options Exchange, CME Group, and IB Exchange Group jointly controlled the company, creating an impressive and substantial financial platform.
Receiving The Order Of Merit
In 2017, Peterffy received the fourth-highest state order in Hungary, known as the Hungarian Order of Merit, for his economic contributions. The order was revived in 1991 after being established in 1946 and disbanded in 1949 due to the political climate.
In conformity with the 2011 Hungarian Constitution, the Order of Merit of the Republic of Hungary was renamed the Hungarian Order of Merit. After Interactive Brokers went public in 2007, it moved its listing to IEX in 2018, which resulted in improved profitability and increased opportunities.
Becoming The Top-Rated Online Broker
Barron consistently ranked the company as a low-cost but top-rated online broker, competing for market share with impressive service levels. However, regulations were tightly controlled, with the Commodities Futures Trading Commission and the Securities and Exchange Commission enforcing regulations on privately held businesses.
Following its listing, roughly 2,272 single-stock futures featuring brands like Apple and Google, founded by Larry Page and Sergey Brin, and IBM were available. Options Clearing Corporation cleared all trades (OCC), and the only securities futures marketplace in the United States at the time was run by OneChicago.
Prediction Markets
Peterffy has long supported the development of prediction markets, which he believes could grow larger than traditional equity markets within the next 15 years. These markets, designed to generate real-time consensus on future events, are seen as tools that could transform decision-making in various fields.
Peterffy specifically highlights their value in political forecasting, where they can provide more accurate insights and predictions than traditional approaches.
Peterffy Foundation
In 2023, the Peterffy Foundation reported total assets of $110,978,113 and net assets of $110,184,720, reflecting its strong financial position. That year, the foundation generated $13,833,456 in revenue and recorded expenses of $8,385,943, allowing it to allocate over $7 million to support over 75 organizations across 13 countries. These contributions focused on Indigenous sovereignty, ecological regeneration, climate justice, and biodiversity protection, demonstrating Peterffy’s commitment to addressing global environmental and social challenges.
The foundation’s efforts are channeled through three key funds, each addressing critical environmental and societal challenges with a unique focus. The Living Forest Project prioritizes protecting old rainforests, supporting Indigenous and women leaders, and fostering sustainable economic alternatives in local communities.
One Small Planet focuses on restorative land and culture-based projects, although publicly available details about specific initiatives are limited. Finally, Reweaving the Web addresses the interconnected challenges of ecology and society, aiming to promote healing and long-term regeneration through innovative approaches.
In 2023, the foundation contributed €1 million to the Red Cross to support Indigenous communities, demonstrating its dedication to global outreach and impact. With a clear mission and substantial financial resources, the Peterffy Foundation demonstrates how thoughtful philanthropy can effectively tackle pressing global challenges.
Peterffy’s vision of blending forward-thinking market strategies with meaningful giving solidifies his reputation as a financial innovator and dedicated philanthropist.
Entrepreneurs
Steve Ballmer Net Worth
| Net Worth: | $120.1 Billion |
|---|---|
| Age: | 67 |
| Born: | March 24, 1956 |
| Gender: | Male |
| Height: | 1.96 m (6 ft 5 in) |
| Country of Origin: | United States of America |
| Source of Wealth: | Businessman |
| Last Updated: | February 15, 2024 |
Introduction
Steve Ballmer is an American investor, businessman, and philanthropist with an estimated net worth of $120.1 Billion.
Ballmer built his net worth during his thirty-four-year career at Microsoft, having joined the company when it was worth just a few million dollars. He served as the chief executive officer for fourteen years, earning an average of $1.2 million/year in compensation. His initial 8% stake in the company has since been reduced to less than 4%, with shares worth well over $3.2 billion sold during his tenure.
Since retiring, Ballmer has acquired the Los Angeles Clippers NBA team and begun focusing more heavily on philanthropic efforts with his wife, Connie Snyder. In this profile, we’ll discuss our research on Steve Ballmer’s net worth history, his career at Microsoft, his salary and earnings, and other factors that have shaped his wealth over time.
Quick Facts
- Previously held an 8% stake in Microsoft
- Earned $17.1 million in salary as CEO of the company
- Paid $2 billion to acquire the Los Angeles Lakers NBA team
Net Worth History
| Net Worth: | $120.1 Billion |
|---|---|
| Age: | 67 |
| Born: | March 24, 1956 |
| Gender: | Male |
| Height: | 1.96 m (6 ft 5 in) |
| Country of Origin: | United States of America |
| Source of Wealth: | Businessman |
| Last Updated: | February 15, 2024 |
Since nearly all of Steve Ballmer’s wealth was generated through his 8% stake in Microsoft, his net worth history can be tracked relatively easily. In 1986, Microsoft launched its IPO, which skyrocketed Microsoft’s valuation, giving it a market capitalization of $777 million. This gave Ballmer a net worth of roughly $62 million at the time.
By the end of 1990, the company’s market cap had grown to $4.8 billion, increasing the value of his stake to $384 million. In 2000, his stake had grown to an enormous $46.9 billion, but the dot-com bust wiped out over 60% of the company’s valuation in a matter of months. Ballmer often sold shares of Microsoft regularly. The most notable of which was in 2003, when he sold 39.3 million shares for $955 million. This reportedly reduced his ownership stake to 4%.
In 2009, Ballmer’s net worth was estimated at approximately $11 billion. A year later, he reportedly sold more than 83.1 million Microsoft shares across five transactions, totaling more than $2.2 billion. However, it appears he’s been quiet on the trading front since then, with his net worth continuing to increase as Microsoft’s market cap grows.
In 2015, he was worth approximately $21.5 billion; by 2019, he was worth $41.2 billion, and by 2022, $91.4 billion. As of 2025, Steve Ballmer is estimated to be worth approximately $120.1 Billion.
Microsoft
In 1980, Steve Ballmer became Microsoft’s 30th employee, taking on the role of business manager. Upon joining, he received an 8% stake in the company and an initial reported base salary of $50,000/year. He helped oversee the Windows and Office franchises during the late 1980s and 1990s and helped launch Windows 95.
When Bill Gates stepped down as CEO of Microsoft in 2000, Ballmer took his place and led the company until 2014. During this time, Microsoft had some of its most successful years, launching Windows XP, Windows 7, and, most notably, its Xbox gaming console. In 2000, Microsoft reported annual revenues of $25 billion; by the time Ballmer stepped down, this figure had tripled to $78 billion.
Acquisitions
As CEO, Ballmer also led some of the company’s most notorious acquisitions, both good and bad. In 2007, they acquired aQuantive for $6.3 billion to compete with Google in digital advertising. Just five years later, Microsoft effectively wrote off $6.2 billion and admitted its failure.
In 2011, Microsoft acquired Skype for $8.5 billion, perhaps one of the more successful acquisitions during Ballmer’s reign as CEO. In 2013, they also acquired Nokia for $7.2 billion, hoping to compete in the smartphone market, but it again had to be marked down as a multi-billion-dollar write-off.
Microsoft Salary
| Year | Base Salary | Bonus | Total |
|---|---|---|---|
| 2000 | $600,000 | $200,000 | $800,000 |
| 2001 | $656,000 | $374,500 | $1,030,000 |
| 2002 | $656,000 | $324,500 | $980,500 |
| 2003 | $700,000 | $400,000 | $1,100,000 |
| 2004 | $901,000 | $175,000 | $1,080,000 |
| 2005 | $605,000 | $620,000 | $1,230,000 |
| 2006 | $616,667 | $350,000 | $966,667 |
| 2007 | $620,000 | $700,000 | $1,320,000 |
| 2008 | $640,833 | $700,000 | $1,340,000 |
| 2009 | $665,833 | $700,000 | $1,370,000 |
| 2010 | $682,500 | $670,000 | $1,350,000 |
| 2011 | $682,500 | $682,500 | $1,370,000 |
| 2012 | $685,000 | $620,000 | $1,300,000 |
| 2013 | $700,000 | $550,000 | $1,260,000 |
| 2014 | $500,000 | $375,000 | $875,000 |
| Totals: | $9,950,000 | $7,140,000 | $17,090,000 |
Ballmer never had a particularly high salary during his time at Microsoft, at least compared to his overall net worth today. We already mentioned his starting salary of $50,000/year, but how about as CEO?
From 2000 to 2014, as Microsoft’s CEO, Steve Ballmer received an annual base salary ranging from $600,000 to $700,000. The only two outliers from this range were in 2004, when he received $901,000, and 2014, which wasn’t a full calendar year. Ballmer also earned an annual bonus, ranging from $175,000 in 2004 to $700,000 (in multiple years). His average annual bonus as CEO was roughly $510,000.
Overall, this meant he earned between $800,000 and $1.2 million annually for the first seven years. This was followed by earnings of between $1.26 million and $1.37 million annually from 2007 to 2013. He’s estimated to have earned $17.1 million in compensation as the CEO.
Los Angeles Clippers Acquisition
Upon leaving Microsoft in 2014, Ballmer acquired the NBA’s Los Angeles Clippers for $2 billion. Several bids were placed to purchase the team after Donald Sterling, the previous owner, was caught on tape making racist comments and was banned for life by the NBA. Ballmer’s bid was the highest, closing his acquisition of the team. At the time, the purchase was considered an incredibly high-risk move, with professional valuations of the Clippers coming in at under $1 billion.
However, in recent years, his investment has paid off significantly, with the team’s value more than doubling in the last five years. Recent estimates place the club’s value at $5.5 billion, generating $353 million in revenue over the past twelve months.
Entrepreneurs
Dave Portnoy Net Worth
| Net Worth: | $120 Million |
|---|---|
| Age: | 48 |
| Born: | March 22, 1977 |
| Gender: | Male |
| Height: | 1.83 m (6 ft 0 in) |
| Country of Origin: | United States of America |
| Source of Wealth: | Entrepreneur |
| Last Updated: | Mar 7, 2026 |
Introduction
Dave Portnoy is an American entrepreneur and sports media personality with an estimated net worth of $120 Million.
Quick Facts
- Filed for Chapter 7 bankruptcy in 2004
- Sold Barstool Sports to Penn National Gaming for $600+ million
- Bought back the company for just $1 in 2023
- Lost as much as $500,000 betting on a single game of football
- Holds a real estate portfolio valued at nearly $100 million
Early Financial Issues
While studying at the University of Michigan for a degree in education, Dave Portnoy founded TheGamblingMan, a sports betting website. He used the website to publish his weekly picks, a forerunner of his move into sports media and online newspapers.
This is important to note because Portnoy has always been “The Gambling Man,” pun intended. According to reports, several years after graduating, he owed roughly $77,000 in gambling debts. Roughly $59,000 of this debt was owed to credit card companies, and the additional $18,000 came from a loan from his father. As a result, he was forced to file for Chapter 7 bankruptcy in 2004.
Portnoy still gambles extensively today, often betting as much as $500,000 on a single game. In fact, he’s mentioned in past interviews that his biggest loss was half a million dollars on a college football game between Virginia Tech and North Carolina. The difference is that today he has hundreds of millions of dollars to his name. Thus, he’s unlikely to ever need to file for bankruptcy again.
Barstool Sports
Barstool was the natural evolution of TheGamblingMan. Dave Portnoy launched Barstool in 2003, which initially was a free print newspaper in the Boston, Massachusetts area. The newspaper provided readers with sports news and Portnoy’s gambling picks, primarily focusing on Boston-based teams. This included the likes of:
- NFL – New England Patriots
- MLB – Boston Red Sox
- NBA – Boston Celtics
- NHL – Boston Bruins
In its earlier years, the Barstool newspaper was marketed and distributed at local subway stations and sports bars, before the official website, BarstoolSports.com, launched. The company recognized the growth of the internet and quickly began using blogging and social media to build its fan base of “Stoolies.” During this era, several figures led the charge, including Dan “Big Cat” Katz, Kevin “KFC” Clancy, and Alex Cooper.
Revenue Sources
Today, Barstool Sports has over 200 million social media followers and hosts hundreds of shows, including One Bite, Wake Up Barstool, Barstool Radio, Big Boys Club, and Fantasy Football Factory. The company generates income predominantly through advertising revenue, brand sponsors, merchandising, and additional partnerships.
The Chernin Group Acquisition
In January 2016, Dave Portnoy sold a 51% stake of Barstool to The Chernin Group, in a deal valued at between $10 million and $15 million. This was the first outside investment that Barstool had received, helping drastically increase its growth rate. Some reports suggest that the Chernin Group later invested an additional $15 million in 2018, bringing their total investment to $25 million. Their stake was also reportedly increased to 60%.
Despite selling a majority stake of Barstool, Portnoy retained full creative control, deciding which content would and wouldn’t be published on Barstool outlets.
Penn National Gaming Acquisition
When Penn National Gaming acquired a 36% stake in Barstool Sports in early 2020, the deal valued the company at approximately $450 million. Penn paid $163 million for its stake, including $23 million for convertible preferred stock in Penn Gaming. When converted, this stock equated to 0.5% of the company’s market cap.
However, following its investment in Barstool, Penn Gaming’s stock price went on quite the rollercoaster ride. Days after the announcement, it was trading at $38 per share. In the midst of the 2020 pandemic, the price crashed to $7 per share. Between May 2020 and March 2021, Penn Gaming’s share price exploded to $130 per share.
During this time, the company’s market cap peaked at roughly $20 billion. Given that Portnoy reportedly received one-third of the 0.5% stake in Penn Gaming, his share was potentially worth as much as $33 million. Of course, there’s no telling whether or when he sold the stock, or how much he sold it for.
At this point, Dave Portnoy and several Barstool executives held a combined 28% stake in the company. The Chernin Group owned a 36% stake, and Penn Gaming the remaining 36%.
Final Acquisition
Shortly thereafter, Penn National Gaming increased its stake in Barstool to 50%, reportedly paying an additional $62 million. In 2022, the company acquired the other half of Bartstool for a reported $387 million, valuing the entire company at $774 million.
Barstool Sports Buyback
By the grace of the gods, Dave Portnoy was blessed with an incredible opportunity in August 2023. At the time, Penn National Gaming had just signed a 10-year, $2 billion betting partnership contract with ESPN that would see them help launch ESPN Bet. However, the network didn’t want to be associated with the Barstool brand, and under the terms of the deal, requested that Penn exit Barstool Sports.
The company was willing to take an $850 million loss on Barstool to make the $2 billion ESPN deal possible, and thus, they presented Portnoy with an opportunity.
Penn Gaming would sell the company back to Dave Portnoy for just $1, under one condition: they would receive 50% of the proceeds if he decided to sell Barstool again in the future. The founder also signed a non-compete preventing him from working with any other betting company.
Real Estate
Since selling (and technically reacquiring) Barstool Sports, Dave Portnoy has invested a significant chunk of his wealth into real estate.
In September 2023, Dave paid $42 million for two properties in Nantucket, Massachusetts, totaling 1.2 acres. This transaction was reported in the media as the “most expensive home in Massachusetts history,” which is slightly misleading, since the purchase wasn’t for a single home. The two properties combined comprise 8,625 square feet of living space, six bedrooms, and eleven bathrooms.
More recently, in October 2025, the founder of Barstool Sports acquired a 10,228-square-foot, eight-bedroom, ten-bathroom mansion in Ismorada, Florida. He splurged $27.8 million on the property, which also broke a local sales record.
Entrepreneurs
Peter Woo Net Worth
Peter Woo may be one of the richest men in Hong Kong, but just how much is he worth today?
| Net Worth: | $13 Billion |
|---|---|
| Age: | 77 |
| Born: | September 5, 1946 |
| Gender: | Male |
| Height: | Unknown |
| Country of Origin: | China |
| Source of Wealth: | Entrepreneur |
| Last Updated: | January 22, 2024 |
Introduction
Peter Woo is a Hong Kong billionaire businessman with an estimated net worth of $12.5 Billion.
Net Worth History
| Year | Net Worth |
|---|---|
| 2016 | $6.6 Billion |
| 2017 | $10.5 Billion |
| 2018 | $12.2 Billion |
| 2019 | $10.8 Billion |
| 2020 | $11.5 Billion |
| 2021 | $18 Billion |
| 2022 | $17 Billion |
| 2023 | $15.8 Billion |
| 2024 | $15.1 Billion |
| 2025 | $12.5 Billion |
Peter Woo’s net worth is primarily derived from his controlling stake in Wheelock & Company Limited, which is approximately just 18%, based on a December 2019 filing. He previously controlled as much as 60.51% of the company. The company was privatized in 2021; therefore, we’re unable to obtain an accurate valuation for 2025. That said, valuation history is available for the years from 2001 to 2020. During this period, Wheelock & Co.’s market capitalization increased significantly from $2.23 billion to $16.23 billion.
In 2016, the company was worth approximately $11.43 billion, with Peter Woo’s net worth estimated at $6.6 billion. At the time, his fortune was largely tied to the company’s value. By 2018, Woo was worth an estimated $12.2 billion, but experienced a brief decline during the business restructuring.
Following privatization, Peter Woo’s net worth skyrocketed to approximately $18 billion, but it has been slowly dipping ever since. This is due to several factors, the majority of which have impacted the real estate portion of the business. One such factor is the weakening relationship between Hong Kong and Mainland China, which impacts a wide variety of Hong Kong-based companies.
As a result, Woo’s net worth is currently estimated to be in the realm of $12.5 Billion.
Before Wealth & Fame
Peter Woo was educated at St. Stephen’s College, a government-funded boarding school and Hong Kong’s largest secondary school. He went on to earn his bachelor’s degree, majoring in physics, from the University of Cincinnati in the United States and became the senior class president.
Shortly after, he obtained his MBA from Columbia Business School and then worked at Chase Manhattan Bank in New York and Hong Kong after graduating. Like many of the richest people in the world, Woo started relatively small before working his way up to become a billionaire.
Banking & Real Estate
While working for Chase Manhattan Bank, Peter Woo met his future wife, Bessie, the sister of the woman he was arranged to marry. Later, Woo moved on to work for Wharf Holdings, a Hong Kong-based real estate and infrastructure company, which helped him earn his fortune.
He eventually took over as managing director of Wheelock Properties, a subsidiary of Wharf Holdings, and helped the company achieve lasting success. Like Joseph Lau, the real estate industry proved to be perfect for Peter Woo, and he excelled in the business thanks to his keen sense.
Due to his diverse interests, Woo began focusing on real estate specifically in Hong Kong, Singapore, and China. His group owns several investment properties in the region, such as Harbour City and Times Square in Hong Kong.
Additional Businesses
Along with Wheelock Properties, Peter Woo helped operate numerous other businesses, including i-Cable Communications and Wharf New T&T. He also owns the private high-end luxury retail group LCJG, which comprises the fashion house Joyce and Lane Crawford.
Lane Crawford has been a highly successful retail company, operating in China since 1850, and is now part of the Joyce Group. Of course, overseeing some of the most popular online brands and real estate operations isn’t enough for Woo because he likes being busy. In addition to these businesses, he also sits on the boards of numerous other Fortune 500 companies, which demonstrates his significant influence.
Boards, Politics & Non-Profits
Peter Woo serves on the advisory boards of numerous Fortune 500 companies, including JPMorgan Chase, one of the world’s largest banks. He is also a member of the advisory board for General Electric, an American multinational corporation with several divisions, including energy and aerospace.
Additionally, Woo is a member of the Standing Committee of the Chinese People’s Political Consultative Conference. This is an advisory body in China, and its members advise on and propose solutions to social and political issues. For his work, the Government of Hong Kong appointed Woo to be a Justice of the Peace in 1993, and in 98 he was awarded the Gold Bauhinia Star.
Past Ventures
As one of the wealthiest individuals in Asia, Peter Woo has held numerous prominent positions throughout his career. From 1993 to 1997, he served as chairman of the Council of the Hong Kong Polytechnic University. He was also the founding chairman of the Hong Kong Environment and Conservation Fund Committee, serving in that position from 1994 to 2004. Woo has also been the chairman of the Hong Kong Hospital Authority and the Hong Kong Trade Development Council.
In 1996, he became directly involved in politics, running in the first Hong Kong Chief Executive Election before the colony was handed over to Chinese rule.
Most recently, he made headlines calling for an end to travel restrictions put in place due to the COVID-19 pandemic. While he remains active in business, in 2013, he appointed his son, Douglas Woo, as the managing director of Wheelock in 2013.
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