Net worth: $474 billion

YTD change in wealth: +$245 billion

Source of wealth: Tesla and SpaceX stock

Elon Musk is the CEO of the electric-vehicle maker Tesla and the spacecraft manufacturer SpaceX. He's also the owner of X, the social network formerly known as Twitter. His other businesses include The Boring Company, Neuralink, and xAI.

Musk's wealth has nearly doubled this year — surging by $245 billion or almost Jeff Bezos' entire net worth — because Tesla stock has jumped by over 85% and SpaceX's valuation has surged to $350 billion, per Bloomberg.

Net worth: $251 billion

YTD change in wealth: +$74.5 billion

Source of wealth: Amazon stock

Jeff Bezos is the founder, executive chairman, and former CEO of Amazon, the e-commerce and cloud-computing giant.

He also founded the space company Blue Origin and owns The Washington Post.

Net worth: $221 billion

YTD change in wealth: +$92.6 billion

Source of wealth: Meta stock

Mark Zuckerberg is the cofounder, chairman, and CEO of Meta Platforms, the social-media titan behind Facebook, Instagram, WhatsApp, and Threads.

Meta's Reality Labs division makes virtual-reality and augmented-reality headsets and experiences.

Net worth: $194 billion

YTD change in wealth: +$70.9 billion

Source of wealth: Oracle and Tesla stock

Larry Ellison is the cofounder, chief technology officer, and former CEO of Oracle, an enterprise software company specializing in cloud computing and database platforms.

He invested in Tesla prior to joining the automaker's board in 2018 and made more than 10 times his money on paper by the time his term as a director ended in August 2022.

Net worth: $178 billion

YTD change in wealth: -$29.3 billion

Source of wealth: LVMH stock

Bernard Arnault is the founder, chairman, and CEO of LVMH Moët Hennessy Louis Vuitton. His conglomerate owns a bevy of luxury brands, including Dior, Fendi, Dom Pérignon, Sephora, and Tiffany & Co.

LVMH stock has struggled this year, falling over 10% and eroding Arnault's net worth in the process.

Net worth: $175 billion

YTD change in wealth: +$48.2 billion

Source of wealth: Alphabet stock

Larry Page cofounded Google with his Stanford University classmate Sergey Brin in a friend's garage in 1998 and served as CEO until 2001.

He took the reins again between 2011 and 2015 after Google was restructured as a subsidiary of Alphabet alongside other businesses such as YouTube and Waymo.

Net worth: $165 billion

YTD change in wealth: +$23.9 billion

Source of wealth: Microsoft stock

Bill Gates is the cofounder and former CEO of Microsoft, which makes the Office application suite, the cloud-computing platform Microsoft Azure, and Xbox consoles.

He's renowned for his philanthropic work at the helm of the Bill & Melinda Gates Foundation, one of the world's largest charitable entities.

Net worth: $164 billion

YTD change in wealth: +$44.3 billion

Source of wealth: Alphabet stock

Sergey Brin cofounded Google with Page in 1998 and served as the search-and-advertising titan's first president.

He and Page stepped down from their respective roles as Alphabet's president and CEO in 2019.

Net worth: $156 billion

YTD change in wealth: +$25.4 billion

Source of wealth: Microsoft stock

Steve Ballmer served as Microsoft's CEO between 2000 and 2014. He joined the company in 1980 as Bill Gates' assistant, initially negotiating a profit share, which he later swapped for an equity stake when it became excessively large.

Ballmer retired as CEO in 2014 with a 4% stake — a position now worth more than $130 billion. He promptly bought the Los Angeles Clippers for $2 billion and remains the basketball team's owner.

Net worth: $143 billion

YTD change in wealth: +$23 billion

Source of wealth: Berkshire Hathaway stock

Warren Buffett acquired Berkshire Hathaway when it was a failing textile mill in 1965 and has since grown it into one of the world's largest companies. His nearly 15% stake is worth around $141 billion.

The famed investor's conglomerate owns scores of businesses, including GEICO, See's Candies, and BNSF Railway, and holds multibillion-dollar stakes in public companies such as Apple and Coca-Cola.

Buffett has gifted about half his Berkshire shares to the Gates Foundation and his four family foundations since 2006.

Net worth: $130 billion

YTD change in wealth: +$51.4 billion

Source of wealth: Dell stock

Michael Dell is the founder, chairman, and CEO of the eponymous computer maker. Dell stock has roughly tripled since March last year to $119, valuing the company at over $80 billion, as investors wager it will be a key beneficiary from the AI boom.

Dell owns about 46% of his company, and pocketed well over $10 billion from the sale of Dell-backed VMware to Broadcom last year.

Net worth: $117 billion

YTD change in wealth: +$44.5 billion

Source of wealth: Walmart stock

Jim Walton is the youngest son of Walmart founder Sam Walton, who gave each of his four children a 20% stake in the budding retail business over 70 years ago. Jim and his two surviving siblings, Rob and Alice, each still own over 11% of the company.

Jim's net worth crossed $100 billion in September following an 80% surge in Walmart stock this year.

Net worth: $115 billion

YTD change in wealth: +$71.4 billion

Source of wealth: Nvidia stock

Jensen Huang cofounded Nvidia in 1993, but the microchip maker has become a market darling within the past two years as its semiconductors have proven pivotal to developing artificial intelligence.

Nvidia's stock price has skyrocketed from under $15 at the end of 2022 to $132. That has boosted the company's value to $3.2 trillion — meaning it now rivals Apple as the world's most valuable company —and bolstered Huang's superrich status in the process.

Net worth: $115 billion

YTD change in wealth: +$43.3 billion

Source of wealth: Walmart stock

Rob Walton, Sam Walton's eldest, sat on Walmart's board for more than 40 years before retiring this June.

His net worth passed $100 billion for the first time in September, making him the second Walton to join the club after his younger brother, Jim.

Net worth: $114 billion

YTD change in wealth: +$43.8 billion

Source of wealth: Walmart stock

Alice Walton is Sam Walton's only daughter, and the world's richest woman after overtaking L'Oréal heiress Françoise Bettencourt Meyers earlier this year.

She joined her brothers, Jim and Rob, in the $100 billion club in September.

Net worth: $104 billion

YTD change in wealth: +$16.9 billion

Source of wealth: Inditex stock

Amancio Ortega is the founder and former chairman of Inditex, a fashion retail group home to brands such as Zara, Bershka, and Massimo Dutti.

The billionaire philanthropist and real-estate investor stopped running Inditex in 2011. His daughter Marta Ortega Pérez was appointed chair at the end of 2021.

Buffett loves playing bridge, sometimes playing for over 8 hours a week, the Washington Post reported. He also likes to hit the green for some golf, spends a great deal of his time reading, and loves to play the ukulele — he said in 2020 that he has a collection of 22 ukuleles. He's played the ukulele since he was young and used his skills to court his first wife Susan, their son Peter once told NPR.

Buffett once bought and donated 17 Hilo ukuleles to the North Omaha branch of the nonprofit Girls Inc, and showed up at the group's building to give a group lesson.

The vast majority of Buffett's net worth is tied to Berkshire Hathaway, his publicly traded conglomerate that owns businesses like Geico and See's Candies and holds multibillion-dollar stakes in companies like Apple and Coca-Cola.

Buffett owns about 15% of Berkshire — a stake valued at over $130 billion.

Berkshire Hathaway itself has assets worth more than $1 trillion.

The CEO of Berkshire Hathaway began building his wealth by investing in the stock market at age 11, according to Forbes, and first filed a tax return at the age of 13.

As a teenager, he was raking in about $175 a month by delivering The Washington Post — more than his teachers (and most adults). Berkshire Hathaway later owned nearly 30% of the newspaper for 40 years until shedding the stake in 2014.

He also sold calendars, used golf balls, and stamps. He had amassed the equivalent of $53,000 by the time he was just 16.

The vast majority of Buffett's wealth was earned after his 50th birthday. His salary at Berkshire Hathaway last year was just $100,000, the same as it's been the last 40 years, and he reimbursed the company $50,000 in part to cover his personal calls and postage.

The company spent triple Buffett's yearly salary — $313,595 — on his personal and home security last year, according to the company's proxy statement.

Buffett's greatest investment mistake is said to be a Sinclair gas station that he bought in 1951 at the age of 21 — he bought a stake in the station with a friend, and the business was consistently outsold by the larger Texaco station opposite it.

He eventually lost the $2,000 he invested out of his total net wealth of $10,000 at the time, Yahoo Finance reported, referencing Glen Arnold's book "The Deals of Warren Buffett, Volume 1: The First $100M." 

Buffett married his first wife, Susan Buffett, in 1952. Together they had three children: Susie, Howard, and Peter. Though he and Susan remained married until Susan's death in 2004, they had lived apart since the 1970s. He married his second wife and longtime companion, Astrid Menks, in 2006.

When Susie was born, Buffett apparently turned a dresser drawer into a bassinet for her to sleep in, according to Roger Lowenstein's 2008 biography of the billionaire. For his second child, Howard, he borrowed a crib.

Despite his multibillionaire status, Buffett has long lived a relatively modest and frugal lifestyle. He previously told CNBC and Yahoo Finance's "Off the Cuff" that he's "never had any great desire to have multiple houses and all kinds of things and multiple cars."

Buffett lives in a modest home in Omaha, Nebraska, which he once called the "third-best investment" he's ever made in a letter to Berkshire shareholders.

He bought the home for $31,500 in 1958 — adjusted for inflation, that's about $342,000. It's now worth an estimated $1.4 million, according to Zillow, and spans 6,280 square feet with five bedrooms and 2.5 bathrooms.

Buffett has made some security upgrades since buying it and it's now guarded by fences and security cameras.

In 1971, Buffett purchased a vacation home in Laguna Beach, California, for $150,000. Part of a gated community called Emerald Bay, the house has six bedrooms, is walking distance from the beach, and was renovated after Buffett bought it. 

He initially put it on the market in early 2017 for $11 million, then cut the price down to $3 million later that year. It sold in October 2018 for $7.5 million, after almost two years on the market. 

Unlike many other ultra-wealthy individuals, Buffett has long driven a fairly modest set of wheels.

He previously drove a 2001 Lincoln Town Car with a license plate that read "THRIFTY" for about a decade, before auctioning it off for charity and replacing it with a 2006 Cadillac DTS. In 2014, he replaced the DTS with a Cadillac XTS, according to Forbes.

"The truth is, I only drive about 3,500 miles a year so I will buy a new car very infrequently," Buffett once told Forbes.

One splurge Buffett has made is on a private jet. Buffett spent $850,000 on a used Falcon 20 jet in 1986, then sold the first jet and upgraded to a different used jet in 1989, spending $6.7 million.

He and his late business partner Charlie Munger nicknamed the second jet "The Indefensible," Buffett revealed in a letter to shareholders.

Despite the fact that Berkshire Hathaway is a major Apple shareholder, Buffett didn't upgrade to a smartphone until 2020.

Before that he preferred the Samsung SCH-U320, which can be bought on eBay for under $20.

Though Buffett did make the switch to an iPhone eventually, he told CNBC that he just uses it "as a phone."

Buffett has said he has about 20 suits, all made in China by designer Madame Li, according to CNBC.

He has a longstanding friendship with Li, an entrepreneur who worked her way up in the business. Buffett's gotten the same $18 hair cut for years from a barber shop in the same building as his office.

Buffett once told Fortune that he eats "like a six-year-old." He gets his breakfast at McDonald's almost every morning on the way to work.

In 2017, he was spending no more than $3.17 on his order, paying with exact change, he said in the HBO documentary "Becoming Warren Buffett." He also drinks at least five Cokes a day.

Buffett once went to McDonald's in Hong Kong with longtime friend Bill Gates and paid with coupons, Gates reminisced in his 2017 annual letter.

The letter reads: "Remember the laugh we had when we traveled together to Hong Kong and decided to get lunch at McDonald's? You offered to pay, dug into your pocket, and pulled out …coupons!"

Gates has described Buffett as a "thoughtful and kind" friend, and has said that every time he visits Omaha, Buffett drives to the airport to pick him up.

Warren Buffett is considered one of the world's most generous philanthropists. He pledged in 2006 to donate about 85% of his Berkshire Class A shares to five foundations: the Bill & Melinda Gates Foundation, the Susan Thompson Buffett Foundation (named after his late wife), and three foundations run by his three children.

He teamed up with Bill and Melinda Gates in 2010 to form The Giving Pledge, an initiative that asks the world's wealthiest people to dedicate the majority of their wealth to philanthropy. Buffett himself has pledged that 99% of his wealth will go to philanthropy during his lifetime or upon his death.

As of 2023, the shares he's already given away were worth about $50 billion based on their value at the time of donation, or about $130 billion given Berkshire Hathaway's stock value at the time. If Buffett had kept those shares rather than donating them, he'd likely be the world's wealthiest person with a net worth of nearly $300 billion.

Buffett plans on leaving his kids $2 billion each, the Washington Post reported in 2014. He once said in a letter to shareholders that he recommends that super-wealthy families "leave the children enough so that they can do anything but not enough that they can do nothing."

"There are things money can't buy," Buffett once said at a shareholders' meeting. "I don't think standard of living equates with cost of living beyond a certain point. My life couldn't be happier. In fact, it'd be worse if I had six or eight houses. So, I have everything I need to have, and I don't need any more because it doesn't make a difference after a point."

Year-to-date wealth gain: $257 billion

Net worth: $486 billion

Source of wealth gain: Tesla and SpaceX stock

Elon Musk is the CEO of automaker Tesla and spacecraft manufacturer SpaceX. He's also the owner of X, the social network previously known as Twitter, along with Neuralink, xAI, and The Boring Company.

Musk's $257 billion wealth gain this year exceeds the total net worth of Jeff Bezos, the second-richest person on the planet. The serial entrepreneur could soon become the first individual to amass a $500 billion fortune.

Year-to-date wealth gain: $90.9 billion

Net worth: $219 billion

Source of wealth gain: Meta stock

Mark Zuckerberg is the cofounder and CEO of Meta, the parent company of Facebook, Instagram, WhatsApp, and Threads.

Meta stock has soared 75% this year as investors wager Zuckerberg's big bets on AI and the metaverse will pay off in the years ahead. Zuckerberg has added about $90 billion to his net worth as a result, propelling him into third place on Bloomberg's rich list.

Year-to-date wealth gain: $72.9 billion

Net worth: $250 billion

Source of wealth gain: Amazon stock

Jeff Bezos is Amazon's founder, executive chairman, and former CEO.

Amazon shares have leaped 52% this year as investors bet the online retailer can harness AI to supercharge its sales and leverage Amazon Web Services to become a key provider of cloud infrastructure to AI companies.

Year-to-date wealth gain: $70.4 billion

Net worth: $193 billion

Source of wealth gain: Oracle and Tesla stock

Larry Ellison is the cofounder, executive chairman, and chief technology officer of Oracle, one of the largest enterprise software companies.

Oracle stock has jumped 61% this year as the company has emerged as a key provider of cloud data centers for AI businesses, fueling a $70 billion increase in Ellison's net worth.

Ellison purchased more than 1.5% of Tesla prior to joining its board in December 2018, making him the electric-vehicle maker's second-largest individual shareholder after Musk. He's believed to have retained his stake, now worth upward of $20 billion, since resigning as a director in 2022.

Year-to-date wealth gain: $70 billion

Net worth: $114 billion

Source of wealth gain: Nvidia stock

Jensen Huang is the founder and CEO of Nvidia, the graphics chip maker that has emerged as a critical seller of "picks and shovels" to the AI gold rush.

Nvidia's stock has surged 163% this year, making it one of the world's most valuable companies with a $3.2 trillion market value and lifting Huang's net worth by $70 billion.

Year-to-date wealth gain: $48.9 billion

Net worth: $127 billion

Source of wealth gain: Dell Technologies stock

Michael Dell is the founder and CEO of Dell Technologies, the maker of PCs, printers, and other computing equipment.

Dell shares have soared 55% this year as the company has shifted its focus toward AI-powered devices and servers.

Year-to-date wealth gain: $47.4 billion

Net worth: $174 billion

Source of wealth gain: Alphabet stock

Larry Page cofounded Google in 1998 and was the company's CEO until 2001 and again between 2011 and 2015 after Google was restructured as a subsidiary of Alphabet.

Alphabet shares have surged 40% this year as investors wager the search-and-advertising titan can dominate AI. The stock jump has fueled a $47 billion rise in Page's net worth.

Year-to-date wealth gain: $45.1 billion

Net worth: $118 billion

Source of wealth gain: Walmart stock

Jim Walton is the youngest son of Walmart founder Sam Walton and, like his siblings, one of the retailer's largest shareholders with an 11%-plus stake.

Walmart stock has climbed 82% this year, fueled by resilient consumer spending in the face of historic inflation and soaring interest rates in recent years. The surge led to Walton amassing a $100 billion fortune for the first time in September.

Year-to-date wealth gain: $44.4 billion

Net worth: $114 billion

Source of wealth gain: Walmart stock

Alice Walton is the only daughter of Walmart founder Sam Walton.

She overtook L'Oréal heiress Françoise Bettencourt Meyers in August to become the world's richest woman.

Year-to-date wealth gain: $43.8 billion

Net worth: $115 billion

Source of wealth gain: Walmart stock

Rob Walton is the eldest son of Sam Walton and an heir to the Walmart fortune.

He and his siblings owe a big chunk of their wealth to their father, who handed them each a 20% stake in the family business over 70 years ago instead of having them inherit his fortune upon his death, in turn avoiding paying billions of dollars in estate taxes.