--- title: Mark Zuckerberg Has Lost $9 Billion So Far Amid Facebook Data Controversy description: Mark Zuckerberg net worth decreased by $5 billion as shares of Facebook were sold off and dropped 8 percent on Monday. authors: - name: Brad Tuttle role: Senior Editor url: https://money.com/author/brad-tuttle/ bio: Brad Tuttle is a former senior editor at Money with over 10 years’ experience covering a vast number of personal finance topics, including careers, cars, travel, budgeting, investing, insurance, credit cards, consumer psychology, real estate, banking, and shopping and deals. education: Columbia University School of Journalism, MS at_money_since: 2014 articles: 366 covers: - Investing - Banking - Business - Career Advice - Credit - Credit Cards - Economy and Politics - Education - Health and Wellness - Housing - Identity Theft - Insurance - Lifestyle - Loans - Mortgages - Personal Finance - Pets - Professional Services - Retirement - Shopping - Taxes - Technology social: - https://twitter.com/bradrtuttle - https://linkedin.com/in/brad-tuttle-834b225 former_staff: true published: '2018-03-19T16:56:42.000Z' modified: '2024-05-16T13:03:50.000Z' section: Investing tags: - Amazon - Billionaires - facebook - facebook stock - Mark Zuckerberg - Tech - Tech word_count: 492 canonical: https://money.com/mark-zuckerberg-net-worth-facebook-stock/ type: Article source: structured-blocks --- > **Disclosure:** We research all brands listed and may earn a fee from our partners. Research and financial considerations may influence how brands are displayed. Not all brands are included. [Learn more](https://money.com/page/disclaimer/). ![Inside The Oculus Connect 4 Event](https://img.money.com/2018/03/markzuckerberg5billion-em-860273932.jpg) *Mark Zuckerberg, chief executive officer and founder of Facebook Inc.* It's been a rough start to the week for Mark Zuckerberg. The Facebook founder and CEO became $5 billion poorer in a matter of hours on Monday, and his net worth had dropped by nearly $4 billion more by midday on Tuesday. Like most of the [world's richest people](https://money.com/the-10-richest-people-in-america/), Mark Zuckerberg's net worth is determined largely by the rise and fall of the stock market. In particular, Zuckerberg's wealth is based on the performance of Facebook shares. Early on Monday, the company's stock was down as much as 8%, as U.K. and U.S. politicians criticized Facebook and Zuckerberg for alleged data breaches that shared millions of users' personal information. The data was reportedly used for political purposes during the 2016 U.S. presidential election season, which culminated in Donald Trump's arrival in the White House. When the market closed on Monday, Facebook stock was down roughly 7% for the day. And on Tuesday morning, Facebook shares fell another 5.5%. According to [Forbes "World's Billionaires"](https://www.forbes.com/billionaires/list/#version:realtime_header:worthChange) list, which updates the estimated wealth of billionaires in real time, Mark Zuckerberg's net worth was roughly $66 billion at around noon on Tuesday, compared to just under $75 billion when the stock market closed on Friday. In other words, Mark Zuckerberg has theoretically lost $9 billion in less than two days. Although the stock market soared in early 2018, investors have gotten spooked more recently by [Trump's move to impose tariffs](https://money.com/why-stock-market-is-plunging-trump-tariff/) on imported steel and aluminum, and by the departure of Trump's top economic advisor, among other reasons. Facebook and Mark Zuckerberg have had a particularly rough going in 2018. Zuckerberg's net worth already plunged over $3 billion during one week in early March as Facebook shares were sold off. Facebook stock had since recovered, and as of Friday Zuckerberg's wealth was up $2.5 billion for the year to date, according to the [Bloomberg Billionaire Index](https://www.bloomberg.com/billionaires/). Yet as Facebook shares took a beating on Monday and Tuesday, Zuckerberg went into the red for year, with a theoretical drop in net worth of about $6 billion thus far in 2018. The Facebook founder wasn't the only tech billionaire hit with steep losses on Monday. Shares of Alphabet, the parent company of Google, were down 4%, and the net worths of company founders Larry Page and Sergey Brin had each fallen roughly $1.5 billion, according to [Forbes](https://www.forbes.com/billionaires/list/#version:realtime_header:worthChange). The [world's richest man](https://money.com/jeff-bezos-net-worth-healthcare-earnings/), Amazon founder and CEO Jeff Bezos, saw his wealth decrease by $2 billion on Monday as Amazon shares fell by nearly 3%. But whereas Facebook shares have continued to fall on Tuesday, Amazon stock has recovered, up nearly 2% thus far for the day. The net worth of Jeff Bezos is up again as a consequence, increasing nearly $2 billion according to [Forbes](https://www.forbes.com/profile/jeff-bezos/?list=rtb). And overall, Jeff Bezos is having a much better 2018 than Mark Zuckerberg in terms of net worth. Whereas Zuckerberg's wealth has been hit with a net decrease, Bezos is up about $30 billion so far this year. ```json { "@context": "https://schema.org", "@graph": [ { "@type": "BreadcrumbList", "@id": "https://money.com/mark-zuckerberg-net-worth-facebook-stock/#breadcrumb", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://money.com" }, { "@type": "ListItem", "position": 2, "name": "Investing", "item": "https://money.com/investing/" }, { "@type": "ListItem", "position": 3, "name": "Stocks", "item": "https://money.com/stocks/" }, { "@type": "ListItem", "position": 4, "name": "Mark Zuckerberg Has Lost $9 Billion So Far Amid Facebook Data Controversy" } ] }, { "@type": "WebSite", "@id": "https://money.com/#website", "url": "https://money.com", "name": "Money", "publisher": { "@id": "https://money.com/#organization" } }, { "@type": "WebPage", "@id": "https://money.com/mark-zuckerberg-net-worth-facebook-stock/#webpage", "url": "https://money.com/mark-zuckerberg-net-worth-facebook-stock/", "name": "Mark Zuckerberg Has Lost $9 Billion So Far Amid Facebook Data Controversy", "isPartOf": { "@id": "https://money.com/#website" }, "datePublished": "2018-03-19T16:56:42.000Z", "mainEntity": { "@id": "https://money.com/mark-zuckerberg-net-worth-facebook-stock/" }, "inLanguage": "en-US", "breadcrumb": { "@id": "https://money.com/mark-zuckerberg-net-worth-facebook-stock/#breadcrumb" }, "dateModified": "2024-05-16T13:03:50.000Z" }, { "@type": "Article", "headline": "Mark Zuckerberg Has Lost $9 Billion So Far Amid Facebook Data Controversy", "articleSection": "Investing", "image": [ { "@type": "ImageObject", "url": "https://img.money.com/2018/03/markzuckerberg5billion-em-860273932.jpg", "width": 4000, "height": 2667, "caption": "Inside The Oculus Connect 4 Event" } ], "author": [ { "@type": "Person", "name": "Brad Tuttle", "url": "https://money.com/author/brad-tuttle/", "@id": "https://money.com/author/brad-tuttle/#author", "description": "Brad Tuttle is a former senior editor at Money with over 10 years’ experience covering a vast number of personal finance topics, including careers, cars, travel, budgeting, investing, insurance, credit cards, consumer psychology, real estate, banking, and shopping and deals.\r\n\r\n", "image": "https://img.money.com/2014/01/Brad-Tuttle.png?w=226&h=247&crop=1", "alumniOf": "Columbia University School of Journalism, MS", "sameAs": [ "https://twitter.com/bradrtuttle", "https://linkedin.com/in/brad-tuttle-834b225" ] } ], "publisher": "https://money.com/#organization", "datePublished": "2018-03-19T16:56:42.000Z", "description": "Mark Zuckerberg net worth decreased by $5 billion as shares of Facebook were sold off and dropped 8 percent on Monday.", "abstract": "Mark Zuckerberg net worth decreased by $5 billion as shares of Facebook were sold off and dropped 8 percent on Monday.", "@id": "https://money.com/mark-zuckerberg-net-worth-facebook-stock/", "inLanguage": "en-US", "dateModified": "2024-05-16T13:03:50.000Z", "wordCount": 492, "keywords": [ "Amazon", "Billionaires", "facebook", "facebook stock", "Mark Zuckerberg", "Tech", "Tech" ], "about": [ { "@type": "Thing", "name": "Investment", "sameAs": [ "https://en.wikipedia.org/wiki/Investment" ] }, { "@type": "Thing", "name": "Stock", "sameAs": [ "https://en.wikipedia.org/wiki/Stock" ] } ] } ] } ```