One Word Each
At 4:30 in the morning on a day in May 2014, the New York Stock Exchange had just closed, and in Hong Kong four Alibaba executives gathered around a computer. On the screen sat a 340-page document. Bottles of champagne waited nearby, unopened. According to people with direct knowledge of the night, each of the four typed a single word of the company's name. Then all four pressed send together. The filing began the initial public offering that would raise $25 billion that September, the largest in history at the time. It was a ritual of collective authorship, almost liturgical in its refusal to let any one person own the keystroke.
One of the four was Joe Tsai. He was not the founder whose face would ring the bell, and he was not the chief executive. For months JPMorgan Chase, Goldman Sachs and Morgan Stanley had been calling his phone and not Jack Ma's, because Tsai, then executive vice chairman, was the one deciding where the deal would go and who would take the fees. The New York Times had introduced him to American readers that January with a sentence that has trailed him since: "you would be forgiven if you have never heard of him." He gave the paper one of his rare interviews and spent much of it shrinking the event. "The I.P.O. is just one milestone and the company continues," he said. "There's a lot of life after an I.P.O." He allowed himself one moment of pleasure at being wanted: "Well, it always feels very good when people say that they love you and they want to talk to you." The Yale Alumni Magazine covered its own alumnus under the headline "Amazon who?"
The gesture at 4:30 a.m. contains most of him. Tsai has spent his life entering rooms that other people built: a New Jersey boarding school, a family law practice founded by his grandfather, a second-floor apartment in Hangzhou, a basketball franchise that Julius Erving had put on the map. In each he made the structure hold. He has always had a word in the name. He has rarely wanted the whole name.
The pattern raises a question that has followed him from the lacrosse fields of New Haven to the owners' meetings of the NBA: to whom does such a man belong? He was born in Taipei. He holds a Canadian passport, acquired in the 1970s when his parents were naturalized; a spokesperson could not tell the Financial Post whether he had ever lived in Canada. He was schooled in America from the age of thirteen. He lives in Hong Kong. He co-founded a mainland Chinese company and governs a team in Brooklyn. In October 2019 he described himself, in a letter read by millions, as "a Chinese having spent a good part of my professional life in China." In February 2026 a Stanford student asked him, in a rapid-fire round meant to be frivolous, which city felt most like home.
"Taipei," he said. "That's where I was born."
By the Numbers
The Indispensable Second
$50Monthly salary Jack Ma offered Tsai in 1999, per Ma's recollection
$700,000Tsai's reported annual pay at Investor AB before he left
18Alibaba co-founders. Tsai was the only one who was not a mainlander
$25BRaised in Alibaba's 2014 NYSE IPO, then the largest ever
$6BValuation of BSE Global's sports holdings in the 2024 Koch minority sale
30xIncrease in the New York Liberty's value from 2019 purchase to the 2025 $450M round
700M+Global downloads of Alibaba's open-source Qwen models by early 2026
The Spring Sport
The first sentence he learned to build was not his own. Before Lawrenceville there was a year of English cram school in Taipei, arranged after his mother told him, as he recalls it, "Joe, I'm going to send you to school overseas, but you have to learn how to speak English." He skipped seventh grade entirely. He memorized vocabulary by the column. When he arrived in New Jersey in 1977 at thirteen and entered the eighth grade, he still could not put the words together into a sentence. "Just kind of just land," he said, "I mean literally like fresh off the boat."
Lawrenceville was all boys, all boarding, and assigned him to Cleve House. "It's an all boys boarding school," he told the Stanford audience, "so that has its own sort of pitfalls and you just have to fit in." He recalls the wanting more clearly than the fear: "I wanted to be one of the guys. I wanted to conform. I wanted to fit in. I look different, I dress different, I speak a different language."
Sport was the obvious way in, and the obvious way failed. He tried out for baseball, a game he had grown up with in Taiwan's Little League culture, and was cut. He tried swimming and was cut again. What came next is the first decision in the record that sounds like the man who would later restructure Alibaba:
"But then I said, the hell with it. I'm going to try completely new things."
He played American football as an undersized inside linebacker, and in the spring, since baseball was closed to him, he picked up lacrosse. He became sports editor of the school newspaper and joined the Glee Club. By graduation in 1982, by one later account, he spoke without an accent. That is a remarkable fact, and it is also a little sad, because the accent was a piece of him that he had worked hard to remove.
At Yale, his father's university, he walked on to the varsity lacrosse team as a freshman and stayed four years. A teammate from Long Island named Jeff Gordon, who later became an executive at Dish Network in Denver, remembered that Tsai came from a different world than the team's mostly middle-class players, and that it made no difference. "We all immediately bonded," Gordon said. "I knew what hard work he put in on the lacrosse field on a daily basis. Joe always did what he thought was right, and he was a steadying presence for all of us." Gordon also remembered that Tsai wore a pink triangle on his chest in support of gay rights. In a jock culture in the mid-1980s this got him teased. His answer, as Gordon recalled it, was that it was just the right thing to do.
Keep that triangle in mind. It will matter later.
He liked to skip constitutional law classes for pickup basketball. One regular opponent was a future Supreme Court justice, Brett Kavanaugh, whom Tsai would rate decades later, with a lawyer's precision, as a "decent player."
The rest of the lacrosse story moves like compound interest. In 2017 Tsai bought the rights to an expansion team in the National Lacrosse League, the San Diego Seals. In 2019 he invested in the Premier Lacrosse League, founded by the player Paul Rabil and his brother Mike, alongside the Chernin Group and the Raine Group. He kept investing through 2026, when the league raised a $100 million Series E. In 2021 he joined Wayne Gretzky, Dustin Johnson and Steve Nash as co-owners of the Las Vegas Desert Dogs. He funded Yale's Tsai Lacrosse Field House and supports World Lacrosse, the sport's Olympic-recognized governing body. The boy who took up lacrosse because the baseball coach did not want him now owns a meaningful share of the sport's professional infrastructure.
He returned to Lawrenceville too. In June 2017 he and his wife, Clara, made the largest gift in the school's 207-year history. The previous record, set in 2010, was $60.2 million from a former English teacher and his wife; the Tsai figure was not disclosed. The money went to endowment and to a new athletic center and dining hall, to "reinforcing campus life around a strong community," in Tsai's phrasing. "I am grateful for what Lawrenceville has given me 35 years ago," he said. He also joined the board of trustees.
The fresh-off-the-boat eighth grader now sits on the board that governs the school, and he paid for the building where the boys eat.
Three Generations of Counsel
Tsai's family history runs through lawyers and a lost country.
His grandfather, Ruchin Tsar, had advised Chiang Kai-shek's Kuomintang government. In 1948 he left the mainland as part of the exodus of millions fleeing the Communists at the end of the civil war. The legal scholar Jerome Cohen met the grandparents in 1961, on his first visit to Taipei, when they gave a dinner for him and his wife. They had never been to the United States, Cohen remembered, yet they spoke excellent English, "probably as a result of missionary schooling in Shanghai before 'Liberation.'" Cohen put Liberation in quotation marks, and the Tsars would have too.
His father, Paul C. Tsai, was born in Huzhou, in Zhejiang Province, and grew up in Shanghai. He moved to Taiwan in 1948, arrived at Yale in 1953, and in 1957 became the first graduate student from Taiwan to receive a J.S.D. from Yale Law School. He went home to help build Taiwan's economic miracle through a series of government posts, and won the President's Award for Outstanding Performance in Government Services in 1963. In 1965 he and his father founded Tsar & Tsai, Taiwan's first partnership law firm. He endowed a professorship at Yale named for his mentor, Myres S. McDougal.
Paul Tsai and Cohen had been contemporaries in New Haven. They stayed friends until the friendship cooled, and the reason it cooled is the most revealing detail in the family history. Paul, Cohen recalled, "was always rather impatient with my interest in studying the PRC's legal system and urged me to focus on Taiwan instead." When Cohen began supporting normalization of relations with Beijing, "my ties to Paul withered." Then Cohen added a line about the son: "Joe obviously had a different attitude from his father's, turning to business involving the Mainland not long after Deng's Southern Tour in early '92."
Paul Tsai died in 2013. In March 2016 his son gave Yale Law School $30 million to support its China Center and rename it the Paul Tsai China Center. A man who had wanted an American scholar to look away from the mainland now has his name on a Yale center devoted to China. You can read the gift as homage, as reversal, or as the kind of reconciliation only a child can arrange after a parent has died. The plaque does not say which.
For a while Joe followed the family track. He took a J.D. from Yale Law in 1990, where he was articles editor of the Yale Law & Policy Review, joined Sullivan & Cromwell's tax group, and was admitted to the New York bar on May 6, 1991. "I come from a family of lawyers," he told a Stanford audience in 2020. "My grandfather was a lawyer, my father was a lawyer." The next sentence is the one that counts: "And I really wanted to get away from the law, and get into business."
The moment he decided may be the meeting he later described about Sullivan & Cromwell's most important client, Goldman Sachs. The subject was setting up an offshore partnership in the Cayman Islands. A young man sat slouched in a chair in the corner and said he guessed he would be moving to the Caymans to run it. The senior lawyer, Tsai recalled, said Goldman needed to send "some more senior people." The young man answered, "I'm a partner." He was twenty-seven, about the same age as Tsai, who was then in his third year as an associate. "That kind of struck me," Tsai said.
He left soon after for Rosecliff, a small New York management-buyout firm, as vice president and general counsel. One account says he wanted "a role that allowed him to make decisions, instead of advising on them." In 1995 he moved to Hong Kong to run Asian private equity for Investor AB, the holding company of Sweden's Wallenberg family. He later said the interview came "just by fluke." By 1999 he was earning about $700,000 a year. He had a pregnant wife and a career that was easy to predict. His father had urged an American to keep his eyes on Taiwan; the son had settled in Hong Kong, facing the mainland. All that was left was to cross the border.
Ten Toothbrushes
In May 1999 a friend who was trying to sell his own company to an English teacher in Hangzhou introduced Tsai to that teacher. His name was Jack Ma. Ma had founded a small translation agency called Hope Translation in 1994 and an online directory called China Pages in 1995. Neither had made him rich. What he had in 1999 was a domain name, a website that had been live for a few months, and seventeen friends and former students who had followed him into the venture. He had no company. "It wasn't incorporated," Tsai has said. "All Jack had was a domain name and a fresh website."
Tsai has told the story many times and it rarely changes. He climbed the stairs to a second-floor apartment. Shoes were piled at the door. He took his off and went in. They talked for about an hour. He did not understand the business, which was a wholesale marketplace to connect Chinese manufacturers and trading companies with foreign buyers, built in English because it was meant for the rest of the world. "I couldn't understand the business plan because the Internet was new to everybody at the time," he said. What he understood was the man. "Jack used to be a teacher. And I think teachers make very good leaders because you have to communicate well. You also have to be able to identify good talent, good students, and develop them like what teachers do."
An hour in, he asked to use the bathroom.
"There were like 10 toothbrushes on the sink."
The group was sleeping in bags on the apartment floor and living there. Investor AB decided not to invest. Tsai decided something else.
Ma's version of what followed differs a little. In 2014 Ma told the Times that he had warned Tsai: "I can only pay you $50 a month. Will you still join me?" Other accounts give other figures for the salary, all of them tiny. Ma was candid about the reason he needed this particular recruit. "Look Joe, I don't know anything about finance or law, and I need to incorporate a company," Tsai recalled him saying. "I need to make sure that there's an agreement among all the founders as to how we run the business going forward. And I need to make sure that we can go out and raise capital. I don't know how to do any of this. So, why don't you come in and help me?"
"When he said he wanted to join us," Ma said, "I was very surprised." Ma told him to think it over and invited him along on a fundraising trip. That trip, as we will see, went badly, and Ma asked again whether Tsai still wanted in.
Clara Wu Tsai wanted to see the place first. She had been born in Lawrence, Kansas, where her father, De-Min Wu, was a prominent econometrician at the University of Kansas, and she had grown up on a campus mad about basketball. She held two Stanford degrees and a Harvard MBA. She was the granddaughter of Wu San-lien, the first elected mayor of Taipei. In 1999 she was pregnant, and according to Ma she asked to visit Hangzhou before her husband committed. Ma remembered what she told him: "I want to see it because my husband is crazy."
He joined anyway, and his first job lasted three months. "Jack fired me because he said, 'Joe, you have no clue how to do operations,'" Tsai said in 2026, with the timing of a man who has had a quarter century to enjoy the line. "I was like, 'All right, fine, I'll be the CFO.'"
The chief operating officer who couldn't operate became chief financial officer and stayed in the job for thirteen years. He was the only founder of the eighteen who was not from the mainland, the only one with family roots in Taiwan, and the only one educated in the West. He approached the work the way he had approached Cleve House. "I'm usually more of a listener, and I approach the work just with humility," he said. "It wasn't my place to come in and tell people what to do. So I listened a lot and just try to, again, that Lawrenceville experience, try to blend in, try to be one of the crowd."
Nineteen years after that first afternoon, Tsai wrote an essay for the South China Morning Post, the Hong Kong newspaper whose board he by then chaired. It may be the closest thing he has written to a creed:
Nineteen years ago, I walked into a modest second-floor apartment in Hangzhou, China, and that visit changed my life. I met a great teacher by the name of Jack Ma. I met not just him, but also his disciples – his students from university who followed him to start Alibaba. And, later, these students became great teachers in their own right. Alibaba is a story of teachers. It is a story of teachers who became leaders. It is a story of leaders who begot more leaders.
— Joe Tsai, South China Morning Post, November 17, 2018
He casts himself as a student in a company of teachers, a man who enrolled in Ma's school. Fortune later called him "as happy a No. 2 as they come." When a Stanford interviewer asked why Ma had been the public face for twenty-five years, Tsai gave the only answer he has ever given: "Because he's better at being in front on the stage."
Fifteen Meetings and Five Rivals
The trip to Silicon Valley was a disaster, and both men tell it as one.
"We went to Silicon Valley for a week," Ma said. "We were rejected by all of the venture capitalists." Tsai counts it more precisely: "We had something like 15 meetings. We didn't get a single investor interested in investing in our company." They had no slides and no demo. Investors asked Ma for his business plan, and he told them, in Tsai's telling, "I don't have a business plan." Tsai repeats it the second time with some wonder: "He actually said, 'I don't have a business plan.'"
What Ma offered instead was a sentence: "My mission is to make it easy to do business anywhere." It is still Alibaba's mission statement and still appears on the company's website. Looking back, Tsai can see the logic the investors missed: the internet was arriving just as China was preparing to enter the World Trade Organization. "The seeds were sown back then," he says. But in 1999 the venture capitalists simply looked baffled. "They didn't give us a lot of feedback. They were kind of reticent. They were just, I think they just wanted to reject us outright."
He drew the most consequential lesson of his career from the walk back to the car. "We came back and we said we have to do what we believe in rather than have investors tell us what we should do."
The first yes came through a friendship, and it was less than flattering. A friend of Tsai's was a partner running Goldman Sachs's emerging-technology investment business. She called him.
"She said, 'Joe, you know, I've got good news and bad news.' And at the time, you know, by then I was so, you know, disappointed with all the rejections. I was like I can't stand any bad news. So tell me the good news first." The good news was that Goldman's investment committee had approved a deal; Jeffrey Towson, who later dined with Tsai, puts the first Goldman check at $5 million. Tsai was about to hang up. "She said, 'Wait, wait, you want to hear the bad news?'" The bad news was that Goldman was backing five other companies with nearly the same model, to see which would win.
So Alibaba's first institutional investor bought it as one entry in a six-horse race. SoftBank followed with $20 million. Tsai led the negotiations for most of the early rounds. He has described Masayoshi Son's appetite with affection and some exasperation: "Masa will support anything that's big, anything that costs a lot of money he will support." The company survived the dot-com crash of 2000 and 2001, which many of its peers did not.
Years later the investor-skeptic became something more careful. "Alibaba has always been in our financing history we've always left money on the table," he said. "All of our investors... have all made money with us uh over the history of 20 years. And I think that's a winning formula." The man who had been rejected fifteen times decided that the people who finally said yes should never regret it. It reads like generosity. It is also a long-term strategy, since every investor who makes money with you will take your call next time.
The Lawyer's Hedge
By 2003, eBay had bought a Chinese company called EachNet and, at its peak, held about 90 percent of China's consumer e-commerce market. Ma wanted to attack it with a consumer marketplace he would call Taobao. He had already secured Son's backing. Then he went to his chief technology officer.
John Wu had come to Alibaba from Yahoo. (His wife, Jane Sun, would later run Ctrip.) He had worked on Yahoo Shopping, and he had watched it fail. "John said, 'No way in hell, over my dead body are we going to do this,'" Tsai recalled.
Ma overruled him and everyone else, which is what founders with charisma do. Tsai's reaction is the most instructive moment in his Alibaba career, and he describes it with plain honesty: "I didn't know strategically, I couldn't make that judgment. But I decided that we were going to structure it so that financially we weren't going to get totally hurt."
He did not argue the strategy, because he admitted he could not judge it. He went around the problem instead. He set up Taobao as a 50/50 joint venture between Alibaba and SoftBank, so that if Wu turned out to be right, half the losses would belong to Son, who seemed to like losing money in large amounts. A visionary pushed forward, a skeptic objected, and the lawyer quietly put a fence around the danger.
Ma, characteristically, put the project in the original apartment. Seven employees disappeared from their cubicles. "They all had to sign NDAs. They couldn't tell their colleagues or spouses or anybody," Tsai said. To fill the new site with listings, staff emptied their own closets. "We seeded that marketplace with a lot of junk." For almost a year, nobody outside knew Taobao belonged to Alibaba.
Within two years Taobao had about 60 percent of the market, and eBay China eventually closed. The joint venture then raised a question that only good outcomes raise: half of the winner belonged to someone else. The answer came in 2005, when Yahoo, under Jerry Yang, took a stake of about 24 percent in Alibaba. Tsai used the deal to buy the rest of Taobao. "That was the big, the best decision we've ever made," he said. "Otherwise today, Taobao will still be half owned by SoftBank."
The structure that limited the downside also set up the way back to full ownership. That is the real use of a hedge: it protects you while you are unsure and lets you take the whole thing once you are sure.
He did more of this kind of quiet structural work through the decade. He courted investors for Alibaba.com's $1.69 billion Hong Kong listing in 2007. He designed the most controversial feature of the 2014 IPO, a partnership structure that gave a group of 27 people outsized power to nominate a majority of the board. In 2014 alone he negotiated acquisitions at a pace of about two a month. Around 2009, the company began building its own software to run huge clusters of computers, out of what Tsai calls necessity rather than ambition: the e-commerce business was producing more users and data than anything on the market could handle. "Nobody has heard about cloud computing. Nobody really thought it was a business," he said. In his layman's description, the software let "clusters of 50,000 computers, 100,000 computers, to work and think like one brain." That brain, years later, would be what Alibaba ran its AI on.
Porter Erisman, who handled marketing and communications in the early years and later made a documentary about the company, summed up Tsai's role in 2014: "Alibaba wouldn't be where it is today without Joe Tsai. Joe is the international lens for the whole group."
Read the Term Sheet
The lawyer surfaced again, in a different arena, in 2017.
Mikhail Prokhorov, the Russian billionaire who owned the Brooklyn Nets, wanted to sell 49 percent of the team. Tsai had grown up at school near Philadelphia rooting for the 76ers, and the Nets were the franchise where Julius Erving had first become a star, winning ABA titles in 1974 and 1976. The price was steep but within reach. Then his bankers sent over the term sheet.
I was putting up half the money [of the team's value], and then I got a term sheet, and I'm treated like I own 1%. I'm like, 'C'mon, I'm a lawyer. I know how to read term sheets, this doesn't give me any rights.'
— Joe Tsai, to Sportico, 2021
He fired the bankers. He gathered what he calls his "rag tag team": Rich Tao, who helps run his family office, Blue Pool Capital, along with Oliver Weisberg and Henry Li. They decided he would not be a passive minority owner. Prokhorov, it turned out, was also willing to sell the other 51 percent, but only in a few years. Tsai's group had two weeks to bid on a deal that would eventually be governed by 38 separate legal documents. They submitted a large number to Allen & Company, which was running the sale, and then heard nothing for a week. "If you submit a big number, like we obviously did, and don't hear back in a couple of hours, you're obviously not the first guy on the list," Tao said.
They got the deal anyway: 49 percent in late 2017 at a $2.3 billion valuation, with an option to buy the rest by 2021. Tsai exercised it in August 2019. In a separate deal, he bought the Barclays Center for nearly $1 billion. "It was a process that taught me being a minority shareholder in a team is not a lot of fun," he said.
The choice of team was not obvious. The Tsais had narrowed their options to franchises that offered a clear route to control: Brooklyn and Houston. Their three children voted for the Rockets, who had James Harden and won 65 games in 2017–18, while the Nets won 28. The parents chose New York. "No knock on Houston, but I love New York," Tsai said. "And owning a sports team, especially in a major league like the NBA, it's like owning a nice apartment on Park Avenue." He kept coming back to the real-estate comparison. Asked at Stanford how he knew the teams would be good investments, he said, "I didn't. I thought they were safe investments in the sense that the value was not going to go down."
In January 2019 he led a group that bought the WNBA's New York Liberty from the Madison Square Garden Company. Three months later the NBA fined him $35,000, while he was still a minority owner, for a tweet defending general manager Sean Marks after a bitter playoff loss to Philadelphia. "NBA rules are rules and we respect that," Tsai wrote, "but our players and fans expect things to be fair." It was a careful sentence, and the league fined him precisely because it was careful.
The kids got their Harden in the end. In January 2021, with Kevin Durant and Kyrie Irving already on the roster (both had arrived before Tsai took control), the Nets traded players and a large stack of draft picks for him. The three stars played 16 games together. The best result was a seven-game second-round loss to Milwaukee. In the 2021–22 season the Nets and Barclays lost between $50 million and $100 million combined, according to the New York Post, and Tsai owed about $100 million in luxury tax, the second-largest bill in league history. He pushed out the chief executive of the parent company, John Abbamondi, even though attendance, ticket revenue and sponsorship had all set records under him. "Joe is hands-on, hard-driving, and if you don't fit with that, then he will keep going until he finds the person that fits," one sports banker told the paper.
He does not hide from the Harden trade. "The Harden decision was definitely on my watch," he told David Rubenstein for Rubenstein's book on team owners, From the Owner's Box. "That's why I'm hated by fans on social media."
What followed was an expensive education in patience. By 2024 he was explaining the difference between "'I want to win,' versus, 'I want to build a winning mentality and culture that's sustainable.'" He added: "You could ruin your future by trading away all of your assets and just win now." In the 2025–26 season the rebuilding Nets went 20–62. That spring the Knicks, his neighbors across the river, won the NBA championship. "It doesn't make us feel very good," Tsai said. "It irates our fan base, and it is embarrassing." Then, without changing tone: "But in business or in competition, in sports, or in anything, you shouldn't let the embarrassment factor affect how you perform… So it doesn't change my thinking at all."
Meanwhile the business side kept compounding regardless of the scoreboard. In June 2024 he sold 15 percent of BSE Global, the parent of the Nets, Liberty and Barclays, to Julia Koch and her children for about $700 million, valuing the sports holdings at $6 billion. That October the Liberty won the WNBA championship, and the city threw them a ticker-tape parade. In May 2025 a minority sale of the Liberty, raising money for a practice facility, valued the team at $450 million, about thirty times what Tsai had paid in 2019. In December 2024 he bought 3 percent of the Miami Dolphins. Bloomberg's breakdown of his wealth in 2025 showed how much of it now sat in arenas rather than Alibaba shares.
He explained the economics to NetsDaily in terms a Wallenberg would recognize. "These franchises trade like art – valuation is based on supply and demand as opposed to profits or cash flow," he said. "Demand far outstrips supply, and supply is strictly controlled and limited (that's why they're called 'franchises')." He also put it as arithmetic: "There are 30 NBA franchises and 3,000 billionaires in the world." Clara, interviewed for the same Rubenstein book, called sports an "anti-AI" investment, valuable because live, unscripted human events cannot be automated.
He also admitted, unusually for a billionaire, that he enjoyed being a member of a very small club. "I can be chairman of a public company, but there are thousands of public companies. There are only thirty NBA owners," he told Rubenstein. "When you have something that other people don't have, it feels pretty good."
Inside the club he is not especially important. In 2021 he sat only on the league's blockchain committee. He wanted the media committee "because it would be such a great learning experience for me." The second-largest individual shareholder of one of the world's biggest technology companies was, in the NBA's eyes, a new member asking to learn.
Third Rail
In October 2019, as the Nets' charter plane neared Shanghai for two preseason games against the Lakers, Tsai posted an open letter on Facebook. The games were set for that Thursday in Shanghai and Saturday in Shenzhen, in the week of the 70th anniversary of the People's Republic. The previous Friday night, Houston Rockets general manager Daryl Morey had tweeted, "Fight for Freedom. Stand with Hong Kong." The Chinese Basketball Association suspended ties with the Rockets. Chinese broadcasters dropped their games, and Chinese companies began pulling sponsorships in droves.
Tsai had owned the Nets outright for about a month. He wrote that he "didn't expect [his] first public communication with [Nets] fans would be to comment on something as politically charged and grossly misunderstood." Then he made his case:
Supporting a separatist movement in a Chinese territory is one of those third-rail issues, not only for the Chinese government, but also for all citizens in China. The one thing that is terribly misunderstood, and often ignored, by the western press and those critical of China is that 1.4 billion Chinese citizens stand united when it comes to the territorial integrity of China and the country's sovereignty over her homeland. This issue is non-negotiable.
— Joe Tsai, open letter to NBA fans, October 2019
He called the Hong Kong protests a "separatist movement." Critics noted that the phrase came straight from Beijing's vocabulary and that of its allies in Hong Kong. He granted that Morey had a right to free expression, "an inherent American value," and then argued that some subjects are untouchable in some places. He identified himself plainly: "As a Governor of one of the 30 NBA teams, and a Chinese having spent a good part of my professional life in China, I need to speak up."
The backlash in the United States was fast and has not fully gone away. Years later, a profile of him on a conservative research site still opened with the letter.
In the days that followed, though, he described his role in more modest terms. "I'm in the eye of the storm," he told the Wall Street Journal. "I've communicated with a bunch of people on both sides and my role is to help everyone understand the other side's perspective." He was trying to translate between two audiences who had no interest in being translated for. CCTV and Tencent announced they would not air the games. China's education ministry canceled a planned Nets visit to a Shanghai school where the NBA had donated a new court. Tsai went to the school anyway, alone. "I went to visit the school to see the principal, told her [in these] unfortunate circumstances they have to do what they have to do," he said. "The NBA is donating the court, the court is built, but we don't get a chance to have a dedication."
The court was built but never dedicated. Someone sympathetic to Tsai could use it as a symbol of everything he had tried to do; someone hostile could too.
It helps to go back a year, to July 2018, when Tsai was still a minority owner. Marks called to say he planned to trade Jeremy Lin to Atlanta to clear salary. Tsai had called Lin his "favorite player" and "a good friend." "Sean, if you trade Jeremy Lin, I will be hated in China, Taiwan, and Hong Kong," he told Marks, according to Rubenstein's book. "The entire Chinese community will hate me forever." Marks replied: "That's why I'm calling you." The trade went through, and the criticism across Asia came as Tsai had predicted.
Notice that in his fear he named China, Taiwan and Hong Kong as three separate places. A year later, in public, he described them as one homeland. Both statements came from the same man.
The Lin affair taught him to control his own voice. Against the advice of his communications staff, he opened a Twitter account under the handle @joetsai1999, the year of the toothbrushes, and promised to stick to sports. "I need to have a direct channel to communicate with our fans," he told Rubenstein. "I can't have the New York Post interpret." He has mostly kept the promise. The great exception, the letter about Hong Kong, was posted on Facebook and linked from Twitter, arguably within the letter of the promise and well outside its spirit.
The comparison with Yale is hard to avoid. The young man who wore a pink triangle into a locker room because it was "just the right thing to do," whom Gordon remembered as someone who "always did what he thought was right," grew into the man who told American fans that a pro-democracy movement was a separatist threat. One way to reconcile the two is to say he still did what he thought was right and believed every word of the letter. Another is to say that at Yale he stood with the outsiders and in 2019 he stood with the country where his business lives. A third explanation is the one his own account supports best: he has always worked hardest at being accepted by the group in front of him, and in October 2019 there were two groups in front of him, and he had to choose. By 2024 he was calling the dispute "water under the bridge."
His work in Chinese basketball since then has been patient and generous. In 2019, just before the Morey tweet, he and Yao Ming started a scholarship program to send Chinese teenagers to American high schools. It is run by Jintian "Jay" Li, now 36, a Beijing native who started out as an intern at the NBA's offices in Secaucus, New Jersey, after college in Rochester, then went home to serve as Yao's chief of staff at the Chinese Basketball Association. With Tsai's money, Li became chief executive of the Asian University Basketball League, a twelve-team, six-country effort to build "an NCAA system for Asia." Li's story mirrors Tsai's in reverse: a young man who went to America and came back to build bridges in the other direction. "I'll do anything to help develop young basketball talent from China," Tsai has said. Han Xu played 58 games for the Liberty. In October 2025 the NBA China Games returned after six years, in Macau, with the Nets on the floor and Alibaba Cloud as sponsor, and NBA China signed a multi-year partnership with Alibaba.
Then the politics came back. In July 2026, after the Pentagon designated Alibaba a "Chinese military company," Representative John Moolenaar, the Republican who chairs the House committee on competition with the Chinese Communist Party, called on the NBA to review Tsai's ownership. Alibaba sued, denied any military ties, and won a federal judge's order barring enforcement while the case proceeded. NetsDaily, which follows the team closely, predicted the league would not act and suggested readers not bet on it.
He had told a podcast in 2025 that running a team was "both a business and also it's an institution," with "this church and state element. It's almost like running a news organization." He would know: he also chairs the board of the South China Morning Post, which Alibaba bought in 2015. When the purchase was announced, Jerome Cohen, his father's old friend, worried that Tsai might turn the paper into "merely a more influential version of the China Daily." In the same post he also wrote: "Yet Joe Tsai may surprise people."
Two Lanes
After the 2014 IPO, Tsai gave up the CFO job and became vice chairman. He spent most of the next decade on investments and, increasingly, on sports, while the company went through what he now calls a period when "we stopped innovating and we suffer from it." Regulators turned hostile, and competitors such as PDD Holdings and ByteDance, which he has called "extreme competition," took ground. He describes the early years, without much nostalgia, as a "free market" era, and the present as a "new normal" with clearer rules, more predictability and red lines.
In September 2023 he came back as chairman, with Eddie Wu, another of the eighteen founders, as chief executive. He insists the decisions were made together: "Number one, I wouldn't say I made the decision. We collectively, as a new management team..." But the voice in the decisions is clearly his. Alibaba had been presenting itself to investors as six separate business groups. "That's stupid," he said at Stanford. "If I was an investor, start listening to a guy you know that says I have six businesses, then they're going to say what are you going to really focus on?" Alibaba halted the planned breakup and kept two lanes: e-commerce, and cloud computing with AI built into it. Everything else would be sold, exited, or managed so it did not distract leadership. "You only have 24 hours a day. You're not going to be able to watch eight different businesses."
He was blunt with the managers of businesses that didn't make the cut. "A lot of the management teams of those gray area businesses came to us and said, oh, we're strategic and important," he said. "I'm like, you're not." The student who listened in the apartment had become the chairman who said no. Asked about Alibaba's demanding internal culture, he dismissed a fashionable word: "I mean use the word inclusive. I'm sorry, we're running a business. We can't include everybody in the enterprise."
He held on to one gray-area business against nearly everyone's advice. Alibaba's food-delivery arm had about 20 percent of the market against a rival's 70, and "every investor is like, when are you going to exit this business?" He kept it because a delivery network that can bring a meal in thirty minutes might one day bring clothing, luggage, or a phone in thirty minutes. "If I sold that business, I would have lost that quick delivery infrastructure." It was the Taobao reasoning again: he valued what the asset might enable later, not just what it earned now.
The AI bet rested on work done long before anyone called it AI. Alibaba had transformer research going in 2019, "three years before OpenAI publicly came out with ChatGPT," though, Tsai admits, "we didn't put enough resources into it." When ChatGPT arrived in 2022, the company already had the transformer research and the cluster software it had built out of necessity around 2009. The Qwen models, released as open source, passed 700 million downloads. By 2025, about 30 percent of the code written by Alibaba engineers was generated by AI. Fortune's 2025 list summed it up: "Alibaba is back at the top of China's tech sector."
His argument about AI echoes his old role as a bridge, now applied to geopolitics. "I think AI is a race among companies. But AI shouldn't be a race between countries," he said. "I described AI as having access to AI as having access to water and air. Can you imagine if a country denies another country something that's essential to life?" At the All-In Summit in September 2025 he debated David Sacks, the White House adviser on AI, arguing that victory meant faster adoption, not the strongest model, and that real AGI was probably twenty years away rather than the five to ten that Demis Hassabis has suggested. On how he defines winning, he said: "I hate the word diffusion. I wanted to say proliferation. But then people bring in kind of the analogy of nuclear weapons."
He describes his own job in smaller terms than outsiders do. Asked whether he sets Alibaba's direction, he said, "I think that's too grandiose. I say my job is to get out of people's way." He now values sleep over the gym. Asked for the best thing he ever bought on Taobao, he named a pair of Under Armour gym shorts from about ten years earlier. He still works out in them.
What He Brought
At some point the man who was always the second name began putting his own name on buildings, though usually his wife's name came first. There is the Wu Tsai Theater at Lincoln Center, named in 2022 after a $50 million commitment to speed up the renovation of David Geffen Hall. There are the Wu Tsai Institute at Yale for the study of human cognition and the Wu Tsai Human Performance Alliance, launched in 2021 with a $220 million pledge across Stanford, Kansas, Oregon, UC San Diego, Boston Children's Hospital and the Salk Institute. In 2017 came Tsai CITY at Yale. He has explained that he deliberately called it a center for innovative thinking, not innovation or entrepreneurship, because "the process of thinking through problems, rather than the idea itself, is really the emphasis." In the spring of 2020, with New York hospitals overwhelmed, the couple shipped 2.6 million masks, 170,000 goggles and 2,000 ventilators to the city. That August they made a ten-year, $50 million commitment to racial justice and economic mobility in Brooklyn. He is a founding board member of The Asian American Foundation. Jeremy Lin, the player whose trade cost Tsai so much goodwill in Asia, later joined its advisory council.
On August 1, 2026, Joe and Clara Wu Tsai announced they were divorcing after thirty years of marriage. The woman who had flown to Hangzhou to check whether her husband had lost his mind had co-signed almost everything he built afterward. The record does not say more, and neither should we.
There is an obvious way to read his whole career as a story of arrival. A boy is cut from the baseball team in New Jersey and ends up owning teams in four leagues. A tax associate is impressed by a twenty-seven-year-old Goldman partner and later decides where Goldman's IPO fees go. A mainland company's sole outsider becomes its chairman. A boy who could not form an English sentence ends up explaining China to America and America to China, and is criticized by both for it. He gives his advice to young people the same way every time: "Find the people first. Find the people that you want to spend time with."
At the end of the Stanford session, Jeremy Tepper, the student interviewer, had a last question about the first afternoon in Hangzhou: the stairs, the shoes, the ten toothbrushes on the sink. Did Tsai have one there too?
"Yeah," Tsai said. "I brought my toothbrush afterwards."