Michael Rubens Bloomberg and Lei Jun are billionaire founders, best known for Bloomberg L.P. and Xiaomi. One built a data empire for Wall Street. The other built a phone and car brand for millions. Their paths differ. Their drive looks similar.
This guide compares Michael Bloomberg and Lei Jun on net worth, careers, and business success. You will see the numbers, the choices, and the lessons. Every figure comes from public reports and trusted sources. Data checked in November 2026.
Michael Bloomberg and Lei Jun at a Glance
Michael Bloomberg and Lei Jun are global business leaders from two very different worlds. Bloomberg is an American billionaire businessman who sells data. Lei Jun is a Chinese technology entrepreneur who sells devices and cars.
| Detail | Michael Bloomberg | Lei Jun |
| Full name | Michael Rubens Bloomberg | Lei Jun (also written Jun Lei) |
| Age | 84 (born February 14, 1942) | 56 (born December 16, 1969) |
| Birthplace | Boston, Massachusetts | Xiantao, Hubei, China |
| Height | Not publicly disclosed | Not publicly disclosed |
| Weight | Not publicly disclosed | Not publicly disclosed |
| Spouse | Divorced from Susan Brown; reportedly partnered with Diana Taylor | Not publicly disclosed |
| Children | Two daughters, Emma and Georgina | Not publicly disclosed |
| Net worth | About $109 billion (Forbes, March 2026) | About $21.6 billion (Forbes, October 2026) |
| Profession | Founder of Bloomberg L.P., philanthropist, former NYC mayor | Founder, chairman, and CEO of Xiaomi |
| Social handles | X: @MikeBloomberg | Active on Weibo |
Forbes ranked Bloomberg 18th richest on its 2026 world list. Forbes put Lei Jun near $21.6 billion in October 2026, ranking him 118th worldwide. Stock prices move daily. Treat every figure as an estimate.
Michael Bloomberg: From Wall Street to Bloomberg L.P.
The Bloomberg L.P. founder turned a sudden firing into a global media and data firm. Today the Michael Bloomberg business empire covers financial data, news, TV, radio, and software. It all grew from one machine that traders loved.
Early life and education
Michael Bloomberg was born in Boston on February 14, 1942. His father kept books for a dairy company. His mother stayed home. He grew up in a middle class family.
- Johns Hopkins University: electrical engineering degree, 1964
- Harvard Business School: MBA, 1966
That mix of engineering and finance shaped his career. He understood both machines and markets.
Salomon Brothers: the fast climb and the sudden exit
Bloomberg joined Salomon Brothers in 1966 and rose fast. He became a partner. He ran stock trading and later the firm’s computer systems. Then came 1981. Phibro bought Salomon. Bloomberg lost his job. He left with a payout reportedly near $10 million.
Most people would have taken a long break. Bloomberg built a company instead.
Building the Bloomberg Terminal
The Bloomberg Terminal is a subscription computer system. It shows live prices, news, and analytics. Traders use it to decide fast. Here is the Bloomberg Terminal business model in plain words.
| Piece | How it works |
| Subscription | Customers pay per seat, reportedly near $30,000 a year |
| Data | Prices, deals, and research sit on one screen |
| Chat | Messaging links traders around the world |
| News | Bloomberg News feeds the same screen |
| Lock in | Users learn it once and rarely switch |
Bloomberg financial information services also include data feeds, analytics, and trading tools. Forbes estimates Bloomberg company revenue at nearly $15 billion a year. The firm is private, so it shares limited financial detail.
Case study: the terminal that sold itself
In the early 1980s, Merrill Lynch became the first big customer. The bank reportedly bought about 20 terminals. It also took a 30% stake for roughly $30 million. Bloomberg later bought that stake back, reportedly in 1986.
What happened next?
- Traders loved the speed.
- They told rivals about it.
- Rivals bought terminals too.
Lesson: Build a tool so useful that users spread it for you.
Mayor, candidate, and CEO again
Bloomberg served as New York City mayor from 2002 to 2013. He returned to run Bloomberg L.P. in 2014. In 2020 he ran for president. He ended that bid after Super Tuesday. Reports say he spent close to $1 billion of his own money.
Michael Bloomberg leadership style stays hands on and data first. His offices use open floors with few private rooms. The boss sits in the open too.
Michael Bloomberg net worth in 2026
Forbes estimates Michael Bloomberg’s net worth near $109 billion in 2026. He owns about 88% of Bloomberg L.P. That stake drives nearly all of his wealth.
| Date | Estimated net worth | Source |
| 2020 | About $48 billion | Forbes |
| January 2026 | About $109.4 billion | Forbes |
| March 2026 | About $109 billion, rank 18 | Forbes World’s Billionaires List |
His wealth more than doubled in six years. Another Forbes state ranking lists about $94.9 billion. Different dates and stock prices explain the gap.
Lei Jun: The Technology Entrepreneur Behind Xiaomi
Xiaomi founder Lei Jun is a Chinese technology entrepreneur who turned a budget phone brand into a car maker. His Lei Jun entrepreneurship journey spans software, online retail, investing, and hardware.
Early life and the two year degree
Lei Jun was born on December 16, 1969, in Xiantao, Hubei. He studied computer science at Wuhan University. He reportedly finished the four year degree in two years. He has also credited a book on early Silicon Valley for his ambition.
That speed shows his focus. It also shows how he works. He sets a hard goal and moves quickly.
Kingsoft, Joyo.com, and the angel years
Lei joined Kingsoft in 1992 and later became its CEO. He founded Joyo.com, an online store, in 2000. Amazon bought it in 2004 for a reported $75 million. Kingsoft went public in Hong Kong in 2007. Lei stepped down as CEO that year. He then became an angel investor.
Lei Jun investment portfolio highlights include:
- UCWeb, a mobile browser later absorbed by Alibaba
- YY, a live video platform now called JOYY
- Vancl, an online clothing brand
He also cofounded Shunwei Capital in 2011. It is a venture fund for tech startups.
Founding Xiaomi
Lei founded Xiaomi in April 2010 with a team of cofounders. The Xiaomi smartphone business took off with the Mi 1 in 2011. Xiaomi sold phones online with thin margins and loud fan support. Today the company also sells TVs, wearables, home devices, and cars.
Case study: Xiaomi’s IPO and the 5% promise
Xiaomi listed in Hong Kong in July 2018. It reportedly raised about $4.7 billion. Lei made a public pledge around the listing. Xiaomi’s hardware net margin would stay under 5%. He said extra profit would go back to users.
Why did it matter?
- Buyers trusted the brand.
- Rivals found price wars harder.
- Investors had to accept thin margins.
Lesson: A clear public promise can become your brand.
Lei Jun net worth in 2026
Forbes estimates Lei Jun’s net worth near $21.6 billion as of October 2026. Most of it reportedly comes from his Xiaomi shares.
| Date | Estimated net worth | Source |
| May 2025 | About $42.6 billion | Forbes |
| October 2026 | About $21.6 billion | Forbes |
Forbes said his fortune fell by $15.6 billion on its March 2026 list. That was the biggest drop of anyone. Be careful with other websites. Some show $11 billion. Others show far higher numbers. Forbes remains the most cited source.
Michael Bloomberg and Lei Jun Compared
Both men are billionaire entrepreneurs who still lead their firms. Their customers and methods differ.
What they have in common
- Each founded the company that made his fortune.
- Each started with an engineering or tech background.
- Each kept strong control of the business.
- Each sold products that people use every day.
- Each entered public life. Bloomberg became mayor. Lei Jun became a National People’s Congress deputy in 2013.
Where they differ
| Area | Michael Bloomberg | Lei Jun |
| Home market | United States | China |
| Core product | Data terminal | Phones, devices, cars |
| Customers | Finance professionals | Everyday consumers |
| Pricing | Premium | Low margin value |
| Ownership | Private | Public, Hong Kong |
| Net worth | About $109 billion | About $21.6 billion |
| Reported giving | $25.4 billion lifetime | $2.2 billion in shares, 2021 |
Bloomberg’s Business Philosophy
Bloomberg wins by selling must have data, staying private, and staying open. Three habits drive the Michael Bloomberg business empire.
Sell information people can’t live without
Traders cannot work blind. One late price can cost millions. So they pay for speed and accuracy. That need makes the terminal sticky. Switching also means retraining a whole desk.
Stay private and stay in control
Bloomberg owns about 88% of his company. No public shareholders push for quick profits. He can plan for decades. Most profits also flow to Bloomberg Philanthropies.
Build a culture around transparency
Staff sit in open spaces. Leaders sit there too. Ideas move fast because walls do not block them. Many companies have copied the open floor idea.
Lei Jun Technology Strategy
Lei Jun technology ventures follow one rule. Make great products at honest prices.
The Iron Triangle model
Lei Jun calls his model the Iron Triangle. It links three parts.
- Hardware: devices sold at thin margins
- New retail: online and store sales
- Internet services: apps, ads, and subscriptions
Cheap hardware wins users. Services then earn money from those users over time.
Fans as Cocreators
Xiaomi treated early fans as testers and partners. Fans voted on features. They reported bugs and shared ideas. That feedback cut ad costs and sped up updates. Apple has loyal users too. Xiaomi invited its fans into the design room.
The EV bet in numbers
Xiaomi passed 800,000 electric vehicle deliveries by September 7, 2026. That took about 29 months from the first SU7 handover in April 2024.
| Period | Deliveries | Note |
| 2024 | About 139,000 | SU7 launch year |
| 2025 | More than 410,000 | YU7 added |
| 2026 target | 550,000 | Set by Lei Jun |
| By September 2026 | 800,000 total | Cumulative milestone |
The Xiaomi electric vehicle business reportedly turned profitable within 18 months. The SU7 and YU7 compete with the Tesla Model 3 and Model Y. Xiaomi sells its cars in China today. Overseas expansion is planned from 2027.
Simple math shows about 250,000 deliveries so far in 2026. That makes the 550,000 target a stretch.
Chips, AI and robots
Xiaomi unveiled its own 3 nanometer Xring O1 chip in May 2025. The goal is to rival Apple and Qualcomm. Xiaomi also adds AI features across phones, cars, and home devices. It has shown robot projects too, such as the CyberOne humanoid in 2022.
Own chips cut supplier risk. They also take years and large budgets.
Their Approach to Technology
Bloomberg uses technology as a tool for clients. Lei Jun uses technology as the product itself. Technology industry innovation shows up in both firms, but in different forms.
- Bloomberg: data, analytics, news, and software for professionals
- Lei Jun: devices, chips, cars, and services for consumers
- Both: fast feedback from users
Lei Jun leadership philosophy centers on timing. He has reportedly said that even pigs can fly when standing at the wind outlet. His point is simple. Find a big wave, then ride it with strong products.
Entrepreneurship and Long Term Expansion
Both men grew by adding new products to a strong core.
Bloomberg’s growth path
The terminal came first. Bloomberg News arrived in 1990. Radio and TV followed. Today the firm also sells data licensing and software.
Lei Jun’s growth path
Phones came first. TVs, smart home devices, and wearables followed. Cars were announced in 2021, with first deliveries in 2024. Xiaomi reportedly planned to invest $10 billion in EVs over ten years.
Setbacks that shaped them
- Bloomberg lost his Salomon job in 1981. His 2020 presidential run ended early.
- Xiaomi’s phone sales fell in 2016. Lei Jun then rebuilt the plan.
- Lei Jun’s fortune dropped $15.6 billion on Forbes’ March 2026 list.
Lessons for founders
- Solve one painful problem first.
- Make customers your sales team.
- Keep control while you can.
- Make a public promise and keep it.
- Expand from a strong core, not from a guess.
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Philanthropy and Social Impact
Both founders give. Bloomberg gives at a far larger scale.
Bloomberg Philanthropies
Michael Bloomberg philanthropy reached $4.3 billion in 2025, according to the group’s annual report. Lifetime giving now stands at $25.4 billion. The group works in about 700 cities across 150 countries. The Chronicle of Philanthropy ranked him first among US donors for the third year in a row.
Key gifts include:
- $1 billion to Johns Hopkins University in 2024 for medical school aid
- $600 million for medical schools at historically Black colleges in 2024
Bloomberg has said, “When mayors succeed, millions of lives improve.” Focus areas include public health, arts, education, climate, and city government.
Lei Jun’s giving
Lei Jun charitable donations include a reported $2.2 billion in Xiaomi shares in 2021. He also joined the ALS Ice Bucket Challenge. He reportedly pledged about 600 million yuan to Wuhan University in 2017. Public detail on many gifts is limited. Treat totals with care.
Comparing their impact
| Area | Bloomberg | Lei Jun |
| Main vehicle | Bloomberg Philanthropies | Share donations and personal gifts |
| Reported total | $25.4 billion lifetime | $2.2 billion in 2021 |
| Focus | Health, cities, education, arts, climate | Education, relief, health research |
| Reporting | Annual report | Limited public detail |
Are Michael Bloomberg and Lei Jun Connected?
No public record shows a direct business or personal link between them. Bloomberg News covers Xiaomi like any large listed company. Many people pair the names because both appear on global rich lists. Both also lead firms built on technology. That makes this a useful comparison. It is not a partnership.
Frequently Asked Questions
Who is richer, Michael Bloomberg or Lei Jun?
Bloomberg is richer by a wide margin. Forbes estimates about $109 billion for Bloomberg and $21.6 billion for Lei Jun.
What is Michael Bloomberg’s net worth in 2026?
Forbes estimates it near $109 billion. Most of it comes from his 88% stake in Bloomberg L.P.
What is Lei Jun’s net worth in 2026?
Forbes estimates it near $21.6 billion as of October 2026. Xiaomi shares make up most of it.
How did Michael Bloomberg build his wealth?
He built the Bloomberg Terminal after leaving Salomon Brothers. Subscriptions, data, and news grew into a huge private firm.
How did Lei Jun build his wealth?
He founded Xiaomi in 2010 and took it public in 2018. Earlier wins at Kingsoft, Joyo.com, and angel investing helped too.
Does Xiaomi sell phones in the United States?
Xiaomi does not sell phones through major US carriers. Some products appear through online retailers.
Who gives more to charity?
Bloomberg gives far more. His lifetime giving stands at $25.4 billion.
Fast Facts
- Bloomberg turns 85 in February 2027.
- Forbes ranked Bloomberg 18th richest in 2026.
- Bloomberg owns about 88% of Bloomberg L.P.
- Bloomberg gave an estimated $4.3 billion in 2025.
- Lei Jun was born in Xiantao in 1969.
- Lei Jun reportedly finished college in two years.
- Xiaomi listed in Hong Kong in 2018.
- Xiaomi passed 800,000 EV deliveries by September 2026.
- Lei Jun’s wealth fell $15.6 billion on Forbes’ March 2026 list.
- No public link between the two men is confirmed.
About the Data
This article draws on the Forbes World’s Billionaires List 2026, the Bloomberg Philanthropies Annual Report 2025 to 2026, the Chronicle of Philanthropy Philanthropy 50, and EV reports from Gasgoo, TechNode, and CnEVPost. Estimates carry hedges where facts remain unconfirmed.
Conclusion
Michael Bloomberg and Lei Jun prove that big ideas beat big budgets. Bloomberg sold data that traders could not ignore. Lei Jun sold value that fans could not resist. One fortune sits near $109 billion. The other sits near $21.6 billion.
Both founders still run their firms and still take bold bets. Study their choices and borrow what fits your business. Start small. Stay close to customers. Keep control of the vision. Then share your wins, as both men have.
