It’s a good year to be a member of The Forbes 400. As a group, the richest people in America are $500 billion richer than a year ago, aided by rebounding stock markets and an AI-driven tech boom. They now hold $4.5 trillion in wealth, tying a record set in 2021.<br /><br />It takes $2.9 billion to make the cut, up from $2.7 billion a year ago, also tying for the highest ever. Forbes calculated net worths using stock prices from September 8, 2023.<br /><br />Elon Musk again tops the list, worth an estimated $251 billion—the exact same as last year, despite a wild 12 months that included him being forced to buy Twitter for far more than it was worth, watching Tesla stock crater, getting into internet spats with the likes of the Ukrainian president Volodymyr Zelensky and the foreign minister of Taiwan, challenging Mark Zuckerberg to a cage fight—then adding tens of billions to his fortune as Tesla stock came roaring back. Musk is $90 billion wealthier than No. 2 Jeff Bezos and $93 billion ahead of No. 3 Larry Ellison, who added more dollars to his net worth than anyone in America over the past year, some $57 billion, largely thanks to the generative artificial intelligence craze helping push up shares of his software firm, Oracle.<br /><br />0:00 Intro<br />00:35 What Is The Forbes 400?<br />02:00 Elon Musk Tops This Year's List<br />03:05 How Big Is Musk's Lead?<br />03:42 How Did Larry Ellison Make $57 Billion In A Year?<br />05:18 The AI Boom And Net Worths<br />07:07 Who Lost Money?<br />09:32 Who's Returned To The List?<br />10:35 Who's New To The List?<br />11:58 How Many Women Made The List?<br />13:24 Self-Made v Inherited<br />14:54 What's The Age Range?<br />16:25 How Charitable Are These Billionaires?<br />18:15 Trends To Look For<br /><br />Read the full story on Forbes: https://www.forbes.com/forbes-400/<br /><br />Subscribe to FORBES: https://www.youtube.com/user/Forbes?sub_confirmation=1<br /><br />Fuel your success with Forbes. Gain unlimited access to premium journalism, including breaking news, groundbreaking in-depth reported stories, daily digests and more. Plus, members get a front-row seat at members-only events with leading thinkers and doers, access to premium video that can help you get ahead, an ad-light experience, early access to select products including NFT drops and more:<br /><br />https://account.forbes.com/membership/?utm_source=youtube&utm_medium=display&utm_campaign=growth_non-sub_paid_subscribe_ytdescript<br /><br />Stay Connected<br />Forbes newsletters: https://newsletters.editorial.forbes.com<br />Forbes on Facebook: http://fb.com/forbes<br />Forbes Video on Twitter: http://www.twitter.com/forbes<br />Forbes Video on Instagram: http://instagram.com/forbes<br />More From Forbes: http://forbes.com<br /><br />Forbes covers the intersection of entrepreneurship, wealth, technology, business and lifestyle with a focus on people and success.