The world’s 500 richest people made more than a quarter trillion yesterday as volatile markets react to fragile Iran war ceasefire

Wall Street traders saw a huge surge yesterday, and the world’s wealthiest billionaires had their best day in nearly a year, after President Donald Trump took back his threat that “a whole civilization will die tonight” on Tuesday, quelling traders’ fears. 

The world’s 500 richest people made $265 billion yesterday, according to the Bloomberg Billionaires Index. With the Dow Jones Industrial Average jumping 2.85% and the S&P 500 soaring by 2.51%, it was the second-largest single-day profit since the index was created in 2012.

Meta CEO Mark Zuckerberg made the most gains and added $12.8 billion to his personal net worth as Meta shares—of which Zuckerberg owns about 13%—rose 6.5%. Luxury goods billionaire Bernard Arnault had the second-highest gains with $9.89 billion. 

The largest gain for the world’s 500 wealthiest people was just a year ago tomorrow, on April 10.  Last year on this day, Trump paused his planned “Liberation Day” tariffs, and the subsequent 24 hours of trading added a record $304 billion to the top 500 wealthiest’s net worths. In comparison, this Wednesday saw 61 people on the index grow their wealth by more than $1 billion. 

The rally won’t offset that the 500 wealthiest billionaires are still at a collective loss of $38.8 billion year-to-date. The world’s richest man Elon Musk alone lost about $3 billion on Wednesday. 

That growth may not last forever. Both the Dow and and S&P 500 briefly dipped this morning before making modest gains as reports of a shaky ceasefire dominated headlines. Crude oil climbed back up to $100 per barrel on Thursday morning, as doubts grow over how the ceasefire will hold. The current price is far from its peak of $118.35 since the war began, but much higher from its $70 cost before the war. 

After an eleventh-hour ceasefire deal between the U.S., Israel and Iran was reached on Tuesday, just before Trump’s self-imposed 8 p.m. deadline that night, a ceasefire agreement sent markets soaring. Then Israel heavily bombarded what it considered Hezbollah strongholds in Lebanon on Wednesday, killing more than 200 people. Iran, which said it believed the ceasefire included Lebanon, claimed Israel had violated the agreement and thus closed the Strait of Hormuz to non-approved ships in response to the attacks. 

On Thursday as talks continue, Trump told NBC News that he asked Israeli Prime Minister Benjamin Netanyahu to be “a little more low-key” in operations in Lebanon.

The Fortune 500 Innovation Forum will convene Fortune 500 executives, U.S. policy officials, top founders, and thought leaders to help define what’s next for the American economy, Nov. 16-17 in Detroit. Apply here.

Read More
Jacqueline Munis

Latest

‘Summer House’ Reunion Trailer Bombshells and More Us Weekly Top Stories

Getty Images(3) Here’s a rundown of Us Weekly‘s top stories making headlines in celebrity news, sports and entertainment on May 19, 2026. Here are key takeaways: • Dramatic reunion: Ciara Miller slammed Amanda Batula and West Wilson in the newly released Summer House season 10 reunion trailer, accusing West of dating Amanda “to spite” her.

Abortion bans lead to worse outcomes for miscarriages

🛡️ Just a quick check We’re checking your connection to prevent automated abuse

Kids Keep Getting Stuck in Hospitals, Even After Being Cleared for Discharge

Overwhelmed by the demands of caregiving, Quette dialed 911 when she found her teenage son downstairs in their kitchen struggling to breathe. He had rolled his wheelchair to the oven to keep himself warm as he tried to regulate his temperature, she recalled, and was drenched in sweat from an apparent infection. In that moment

Edimakor Mac V4.8.0 Elevates AI Music with Lyria 3 Pro & Integrates Seedance 2.0

Music NEW YORK, NY, April 18, 2026 /24-7PressRelease/ --...

Newsletter

Don't miss

‘Summer House’ Reunion Trailer Bombshells and More Us Weekly Top Stories

Getty Images(3) Here’s a rundown of Us Weekly‘s top stories making headlines in celebrity news, sports and entertainment on May 19, 2026. Here are key takeaways: • Dramatic reunion: Ciara Miller slammed Amanda Batula and West Wilson in the newly released Summer House season 10 reunion trailer, accusing West of dating Amanda “to spite” her.

Abortion bans lead to worse outcomes for miscarriages

🛡️ Just a quick check We’re checking your connection to prevent automated abuse

Kids Keep Getting Stuck in Hospitals, Even After Being Cleared for Discharge

Overwhelmed by the demands of caregiving, Quette dialed 911 when she found her teenage son downstairs in their kitchen struggling to breathe. He had rolled his wheelchair to the oven to keep himself warm as he tried to regulate his temperature, she recalled, and was drenched in sweat from an apparent infection. In that moment

Edimakor Mac V4.8.0 Elevates AI Music with Lyria 3 Pro & Integrates Seedance 2.0

Music NEW YORK, NY, April 18, 2026 /24-7PressRelease/ --...

Justin Bieber turns Coachella 2026 into a $5M merch empire

Music Please enable JS and disable any ad blockerRead...

Tesla’s Business Has Become Much More Diversified in Just the Past Five Years. Does That Make Its Stock a Better Buy Today?

Key Points Tesla's energy generation and storage segment generated 27% revenue growth last year. The company's non-automotive segments were able to help offset a double-digit decline in auto revenue in 2025. These 10 stocks could mint the next wave of millionaires › Tesla (NASDAQ: TSLA) is known for its electric vehicles (EVs), and while they

WD sees sustainability as key business driver in an ‘AI economy’

Hard drive company WD promoted long-term operations and sustainability executive Jackie Jung to become its first chief sustainability officer in February, as it steps up sales to companies building AI data centers. Her vision: Turn sustainability into a “brand” for WD, a strategy that reduces risk for the $6 billion company (formerly known as Western

5 Business Ideas Worth Starting in 2026

If there is one thing Nigerians understand well, it is how to spot opportunity inside hardship. In 2026, that mindset will matter more than ever. The economy is tough, competition is rising, and many people are looking for smarter ways to earn, build, and survive. But even in a difficult environment, some businesses still stand