The world’s five richest men have more than doubled their vast wealth since 2020, according to an Oxfam report, as the charity calls for curbs on “corporate power.”

The report found that the combined fortune of the world’s wealthiest people — Tesla CEO Elon Musk, LVMH boss Bernard Arnault and family, Amazon founder Jeff Bezos, Oracle founder Larry Ellison, and veteran investor Warren Buffett — has jumped from $405 billion in March 2020 to $869 billion in November 2023. Oxfam used data from Forbes and Wealth X which has not been independently verified by CNBC.

Oxfam’s report was published Monday to coincide with the start of the latest World Economic Forum Annual Meeting, which sees the so-called global elite of top business and political leaders meet in Davos, Switzerland, although the five billionaires named in the report are not due to attend.

Seven of the world’s ten biggest companies have a billionaire as their CEO or main shareholder, the report found. Meanwhile, the world’s richest 1% of people own 43% of global financial assets, according to the research, such as publicly listed instruments like stocks and bonds, along with stakes in privately-held businesses.

“If current trends continue, the world will have its first trillionaire within a decade but poverty won’t be eradicated for another 229 years,” Oxfam said.

The charity also highlighted that net profit among 148 of the world’s biggest companies jumped 52% in the year to June 2023, versus their average profits between 2018 and 2021.

“Extreme poverty in the poorest countries is still higher than it was pre-pandemic, yet a small number of super-rich men are racing to become the world’s first trillionaire within the next ten years,” Aleema Shivji, Oxfam’s interim chief executive, said.

The charity called on governments to reduce the gap between the ultra-rich and the rest of society by “reining in corporate power,” including by breaking up monopolies, capping CEO pay and adding new taxes on permanent wealth and excess profits.

CNBC attempted to approach the individuals named for comment.

The Nasdaq just wrapped up its fifth straight week of gains, jumping 3.3% over the last five days. It’s the longest weekly winning streak for the tech-laden index since a stretch that ended in Nov. 2021. Coming off its worst year since 2008, the Nasdaq is up 15% to start 2023.

The last time tech stocks enjoyed a rally this long, investors were gearing up for electric carmaker Rivian’s blockbuster IPO, the U.S. economy was closing out its strongest year for growth since 1984 and the Nasdaq was trading at a record.

This time around, there’s far less champagne popping. Cost cuts have replaced growth on Wall Street’s checklist, and tech executives are being celebrated for efficiency over innovation. The IPO market is dead. Layoffs are abundant.

Earnings reports were the story of the week, with results landing from many of the world’s most valuable tech companies. But the numbers, for the most part, weren’t good.

Apple missed estimates for the first time since 2016, Facebook parent Meta recorded a third straight quarter of declining revenue, Google‘s core advertising business shrank and Amazon closed out its weakest year for growth in its 25-year history as a public company.

While investors had mixed reactions to the individual reports, all four stocks closed the week with solid gains, as did Microsoft, which reported earnings the prior week and issued lackluster guidance in projecting revenue growth this quarter of only about 3%.

Meta was the top performer among the group this week, with the stock soaring 23%, its third-best week ever. In its earnings report on Wednesday, revenue came in slightly above estimates, even with sales down year over year, and the first-quarter forecast was roughly inline with expectations.

The key to the rally was CEO Mark Zuckerberg’s pronouncement in the earnings statement that 2023 would be the “Year of Efficiency” and his promise that “we’re focused on becoming a stronger and more nimble organization.”

“That was really the game-changer,” said Stephanie Link, chief investment strategist at Hightower Advisors, in an interview on Friday with CNBC’s “Squawk Box.”

“The quarter itself was OK but it was the cost-cutting that they finally got religion on, and that’s why I think Meta really took off.”

Zuckerberg acknowledged that the times are changing. From the year of its IPO in 2012 through 2021, the company grew between 22% and 58% a year. But in 2022 revenue fell 1%, and analysts expect growth of only 5% in 2023, according to Refinitiv.

On the earnings call, Zuckerberg said he doesn’t expect declines to continue, “but I also don’t think it’s going to go back to the way it was before.” Meta announced in November the elimination of 11,000 jobs, or 13% of its workforce.

Link said the reason Meta’s stock got such a big bounce after earnings was because “expectations were so low and the valuation was so compelling.” The stock lost almost two-thirds of its value last year, far more than its mega-cap peers.

Apple, which slid 27% last year, gained 6.2% this week despite reporting its steepest drop in revenue in seven years. CEO Tim Cook said results were hurt by a strong dollar, production issues in China affecting the iPhone 14 Pro and iPhone 14 Pro Max, and the overall macroeconomic environment. 

“Apple is navigating what is of course a very difficult environment quite well overall,” Dan Flax, an analyst at Neuberger Berman, told “Squawk Box” on Friday. “As we move through the coming months and quarters, we’ll see a return to growth and the market will begin to discount that. We continue to like the name even in the face of these macro challenges.”

Amazon CEO Andy Jassy, who succeeded Jeff Bezos in mid-2021, took the unusual step of joining the earnings call with analysts on Thursday after his company issued a weaker-than-expected forecast for the first quarter. In January, Amazon began layoffs, which are expected to result in the loss of over 18,000 jobs.

“Given this last quarter was the end of my first full year in this role and given some of the unusual parts in the economy and our business, I thought this might be a good one to join,” Jassy said on the call.

Managing expenses has become a big theme for Amazon, which expanded rapidly during the pandemic and subsequently admitted that it hired too many people during that period.

“We’re working really hard to streamline our costs,” Jassy said.

Alphabet is also in downsizing mode. The company announced last month that it’s slashing 12,000 jobs. Its revenue miss for the fourth quarter included disappointing sales at YouTube from a pullback in ad spending and weakness in the cloud division as businesses tighten their belts.

Ruth Porat, Alphabet’s finance chief, told CNBC’s Deirdre Bosa that the company is meaningfully slowing the pace of hiring in an effort to deliver long-term profitable growth.

Alphabet shares ended the week up 5.4% even after giving up some of its gains during Friday’s selloff. The stock is now up 19% for the year.

Should the Nasdaq continue its upward trend and notch a sixth week of gains, it would match the longest rally since a stretch that ended in January 2020, just before the Covid pandemic hit the U.S.

Investors will now turn to earnings reports from smaller companies. Some of the names they’ll hear from next week include Pinterest, Robinhood, Affirm and Cloudflare.

Another area in tech that flourished this week was the semiconductor space. Similar to the consumer tech companies, there wasn’t much by way of growth to excite Wall Street.

AMD on Tuesday beat on sales and profit but guided analysts to a 10% year-over-year decline in revenue for the current quarter. Intel, AMD’s primary competitor, reported a disastrous quarter last week and projected a 40% decline in sales in the March quarter.

Still, AMD jumped 14% for the week and Intel rose almost 8%. Texas Instruments and Nvidia also notched nice gains.

The semiconductor industry is dealing with a glut of extra parts at PC and server makers and falling prices for components like memory and central processors. But after a miserable year in 2022, the stocks are rebounding on signs that an easing of Federal Reserve rate increases and lightening inflation numbers will give the companies a boost later this year.

WATCH: Watch CNBC’s full interview with Truist’s Youssef Squali

A decade ago, Twitter’s future was looking bright. The company was benefiting from a flood of funding into the social-networking space, eventually leading to an IPO in 2013 that raised $1.8 billion.

Now the company is back in private hands. And they happen to be the hands of Elon Musk, the richest person in the world and one of the app’s most high-profile provocateurs.

It’s a massive moment. Twitter has become a key place for people to debate, joke and pontificate in their own circles of politics, sports, tech and finance. It’s also served as a platform that gives voice to the voiceless, helping protesters organize and express themselves in repressed regimes around the world.

In recent years, however, Twitter and social media rivals like Facebook have been at the center of controversy over the distribution of fake news and misinformation, sometimes leading to bullying and violence.

Investors had grown concerned about Twitter as a business. The company was generally unprofitable, struggled to keep pace with Google and Facebook, and often killed popular products with no real explanation.

What follows is a brief history of Twitter, which — despite its many flaws — is one of the most iconic companies to come out of Silicon Valley in the past 20 years.

2006

In March, Jack Dorsey, Noah Glass, Biz Stone, and Evan Williams created Twitter, which was originally a side project stemming from the podcasting tool Odeo. That month, Dorsey would send the first Tweet that read, “just setting up my twttr.”

2007

In July, Twitter received a $100,000 Series A funding round led by Union Square Ventures. The app’s popularity started to explode after being heavily promoted by the tech community during the annual South by Southwest conference.

2008

Dorsey stepped down as CEO in October, and was replaced by Williams. According to the book “Hatching Twitter” by journalist Nick Bilton, Twitter’s board fired Dorsey over concerns about the executive’s management style and public boastings.

2009

Twitter’s popularity continued to soar, leading to a high-profile appearance from Williams on Oprah Winfrey’s talk show alongside celebrity Ashton Kutcher. Kutcher would also write about Williams and Stone as part of Time Magazine’s Time 100 issue. Twitter was now a mainstream phenomenon.

2010

Twitter reached space, with NASA Astronaut Timothy Creamer sending the first tweet live from outer orbit. Behind the scenes, however, management woes continued with Williams stepping down as CEO, replaced by operating chief Dick Costolo.

2011

Twitter became an essential social media tool used during the Arab Spring, the wave of antigovernmental protests throughout Egypt, Libya and Tunisia. Protesters used the site to post reports and to organize. As the Pew Research Center noted, Twitter’s role in “disseminating breaking news” was not “not limited to the Arab uprisings – the death of Whitney Houston, for example, was announced on Twitter 55 minutes prior to the AP confirming the story.”

2012

Twitter’s reach expanded to 200 million active users. Barack Obama used the “platform to first declare victory publicly in the 2012 U.S. presidential election, with a Tweet that was viewed approximately 25 million times on our platform and widely distributed offline in print and broadcast media,” according to corporate filings.

2013

Twitter went public in November. The combined wealth of Williams, Dorsey, and Costolo hit roughly $4 billion.

“I think we’ve got a tremendous set of thoughts and strategies to increase the slope of the growth curve,” Costolo told CNBC at the time. “I would consider some of them tactics, some of them broader strategies, in service of doing what I referred to as bridge the gap between the massive awareness of Twitter and deep engagement of the platform.”

2014

Slowing user growth led to several stock drops and analyst downgrades. Twitter also deemed 2014 the year of the “selfie.”

2015

Compared to rivals like Google, Facebook, and even LinkedIn, Twitter was starting to look like the runt of the Internet litter. Twitter was still unprofitable as its ad business struggled mightily against its larger competitors. Dorsey would also return as CEO of the company, while still maintaining the top job at his other company, Square (now Block).

2016

Rumors began circulating that Twitter was looking to be acquired, with Salesforce as a potential suitor. Meanwhile, Twitter and Facebook were criticized for their role in letting prominent users like Donald Trump, who would win the U.S. presidential election that year, spread misleading information without consequence.

“Having the president-elect on our service using it as a direct line of communication allows everyone to see what is on his mind in the moment,” Dorsey said at the time. “We’re definitely entering a new world where everything is on the surface and we can all see that in real time and we can have conversations about it.”

2017

For a moment, Twitter appeared to be on the upswing. Its stock was finally trending upward as the company’s finances were improving. Meanwhile, Trump as president continued to use Twitter as his megaphone. According to Twitter’s own data, “Trump was the most-tweeted-about global leader in the world and in the United States” that year, CNBC reported.

2018

Dorsey and Facebook’s then-operating chief Sheryl Sandberg testified before the Senate Intelligence Committee about alleged interference by Russia-linked actors in the 2016 election. Trump and fellow Republicans became increasingly vocal about alleged political bias by Twitter and other social media sites.

“In fact, from a simple business perspective and to serve the public conversation, Twitter is incentivized to keep all voices on the platform,” Dorsey said at the time.

2019

Analysts found correlations between President Trump’s voracious use of Twitter and various markets, including gold, underscoring the cultural power of Twitter. Trump met with Dorsey — a Twitter spokesperson said “Jack had a constructive meeting with the President of the United States today at the president’s invitation.”

“They discussed Twitter’s commitment to protecting the health of the public conversation ahead of the 2020 U.S. elections and efforts underway to respond to the opioid crisis,” the spokesperson said.

2020

As Covid-19 spread across the globe, the spread of misinformation dominated the online conversation. And Twitter continued to struggle to grow its business. The service was also hacked that year, and miscreants gained access to over a dozen high-profile accounts, including those controlled by Joe Biden, Jeff Bezos, and Musk

2021

Twitter permanently banned Trump over inflammatory comments the president made during the U.S. Capitol riots in January that the company said could lead to “further incitement of violence.” Trump would allege that Twitter workers “coordinated with the Democrats and the Radical Left in removing my account from their platform, to silence me.” Later, Dorsey suddenly stepped down as CEO and was replaced by Parag Agrawal, the company’s chief technology officer.

2022

Musk took over Twitter after a protracted legal spat that would have culminated this week in a trial in Delaware’s Court of Chancery. The Tesla CEO agreed in April to pay $44 billion for Twitter, but then attempted to renege on the deal. He changed course and opted to proceed, walking into the company’s San Francisco office on Wednesday with what appeared to be a porcelain bathroom sink in his hands.

“Entering Twitter HQ – let that sink in!” he tweeted, with a video of his entrance.

Musk immediately began making changes, firing Agrawal, finance head Ned Segal, and head of legal policy Vijaya Gadde.

WATCH: Billionaire Elon Musk steps into Twitter HQ, sink in hand