Warren Buffett passed Carlos Slim Helu on Wednesday to become the world’s second-richest person.

The 83-year-old Berkshire Hathaway chairman has a net worth of $63.4 billion, according to the Bloomberg Billionaires Index, up 4.3 percent year-to-date.

Berkshire said on March 1st that its annual profit climbed to a record $19.5 billion on gains at its operating businesses, including railroad Burlington Northern Santa Fe, which Buffett bought in 2010. The Omaha, Nebraska-based company posted its biggest weekly advance in 14 months last week after Buffett told investors that the true value of his company has been rising faster than accounting metrics suggest.

"The value of his underlying holdings continue to grow," said Patrick Brennan, co-chief investment officer at Hutchinson Capital Management, which oversees about $550 million including Berkshire shares. "The Burlington acquisition continues to look cheaper and cheaper by the day."

Berkshire closed at $185,750 in New York on Wednesday after reaching a 52-week high in intraday trading.

Slim’s fortune has fallen $10.9 billion since the start of 2014 - the most of any billionaire on the Bloomberg ranking - as Mexico City-based America Movil, the largest mobile-phone operator in the Americas, has plummeted 14 percent. He has a $62.9 billion net worth.

Lower Valuation

Regulators in Mexico are cracking down on America Movil’s dominance of the phone industry with new rules to fix its prices and force it to share its infrastructure with competitors. As a consequence, the operator’s profits in its home market will decline by about $1 billion in the next three years, according to Sanford C. Bernstein and Company and Banco Itau.

America Movil currently has about seven out of ten of Mexico’s mobile-phone subscribers and 80 percent of landlines.

"The new regulations may intensify the current contraction of margins in Mexico," said Lucio Aldworth, an analyst at Citigroup Inc. "With this, we expect the consolidated margins of the biggest Latin American telecommunications operator to keep declining."

America Movil trades at a lower valuation than its peers because of impending regulation in Mexico, uncertainty over mergers and acquisitions, and expectations for slower growth, Aldworth said. "We don’t think any of those factors will improve enough in the short term to justify higher multiples," he said.

World’s Richest

Slim, 74, was recently unseated as the world’s richest man by Bill Gates as Mexican lawmakers start to tackle the lack of competition in the telecommunications market. Gates, 58, has a net worth of $77.7 billion, according to the ranking.

Amancio Ortega, the 77-year-old of founder Inditex, is the world’s fourth-richest person with a $60.3 billion fortune. Inditex is the world’s largest clothing retailer and owner of the Zara chain.

The 300 billionaires on the Bloomberg Billionaires Index have a collective net worth of over $3.6 trillion.

Buffett announced in 2006 that he would donate the majority of his fortune to charity. He has since given away Berkshire stock valued at more than $30 billion at Wednesdays closing price, most of which went to the Bill and Melinda Gates Foundation. The billionaire didn’t immediately respond to a request for comment left with an assistant.

"It’s fascinating that his wealth is growing and surpassing Slim’s despite the fact he’s giving away stock and will continue to give away stock," Jim Shanahan, equity analyst at Edward Jones & Co. in St. Louis, said in a telephone interview.

"The clear differentiator here is that Buffett has a diversified portfolio of operating companies with no significant overweight status in any segment," he said. "Even though they are in highly regulated industries like utilities and railroads, none of the investments are enough to draw attention of regulators and subject his wealth to the kind of scrutiny that Carlos Slim has been subjected to."

Original Story