For his latest recommendation, buyback specialist David Fried is following Carlos Slim – who just past Bill Gates to be the world's richest man.

Telefonos de Mexico (NYSE: TMX), majority controlled by Slim, is the latest buy from The Buyback Letter.

Based in Mexico City, Telmex, as it is commonly called, controls more than 95% of Mexico's fixed-line telephone market and is a major provider of long-distance services, notes Fried. Telefonos de Mexico, he sates, is the leading telecommunications company in Mexico, with more than 15 million telephone lines in service and more than 1 million Internet access accounts.

Fried explains, "It is currently positioned as the regional market leader in telecommunications, and in recent years has bought telephone, cable and data transmission assets in Argentina, Brazil, Chile, Colombia and Peru.

Formerly owned by the Mexican government, the advisor notes, Telmex was privatized in 1990 and is now majority controlled by billionaire magnate Carlos Slim, the world's third richest man.

Says Fried, "Slim is quite a character, and aside from the sheer magnitude of his $49 billion fortune, he also gained the most wealth in the last year ($19 billion). Slim has also invested in cigarettes, real estate, soda bottling, auto parts, and insurance, and, of course, made a fortune in telecom."

He continues, "Slim also is branching out to other countries. In 2005, Telmex spent $350 million to acquire the majority stake in Colombia's biggest phone company, and bought Chilean mobile telecom Smartcom for $472 million."

Each day, Steven Halpern's TheStockAdvisors.com features the latest investment ideas and market commentary from the financial newsletter community.

Microsoft Corp. (NASDAQ: MSFT) Chairman Bill Gates -- net worth: $59.2 billion -- is no longer the world's wealthiest person. According to the HeraldSun, Mexico's Carlos Slim -- net worth: $67.8 billion -- now sits in that throne. In April, Slim surpassed Berkshire Hathaway Inc.'s (NYSE: BRK.A) CEO Warren Buffett as the world's second richest person. And today, Slim surpasses Gates.

How must Gates feel? I don't know. He has commented in the past that he doesn't think about being the world's wealthiest person much. But he has occupied that throne since 1995. After 12 years, there could be a twinge of regret at having lost the crown. But Gates still has plenty of money, particularly since Buffett contributed a huge chunk of his fortune to Gates' foundation.

Meanwhile how did Slim climb so fast? A 27% surge in the share price of America Movil (NYSE: AMX), Latin America's largest mobile phone operator controlled by Slim, from March to June enabled Slim to surpass Gates by $8.6 billion. The 5.7% increase in Microsoft stock in the second quarter was no match for the sharp rise in valuations of Slim's companies. He also owns shares of Telefonos de Mexico (NYSE: TMX) up 11% and Grupo Financiero Inbursa S.A. (MXK: GFINBURO) up 20%.

While I don't have earnings forecasts to evaluate Inbursa, it's not too late to consider buying in to Slim's other companies.

• American Movil. AMX's PEG of 1 -- based on a P/E of 26.2 on earnings growth of 26% to $4.22 in 2008 -- looks reasonable to me.
• Telmex. TMX's PEG of 2.5 -- based on a P/E of 12 on earnings growth of 4.9% to $3.31 in 2008 -- looks expensive to me -- I'd avoid this one.

It's not every day that a king gets dethroned. The market is sending a signal that might be worth heeding.

Peter Cohan is president of Peter S. Cohan & Associates, a management consulting and venture capital firm. He also teaches management at Babson College and edits The Cohan Letter. He has no financial interest in the securities mentioned in this post.

Last December, over 100 stocks were featured in our Top Picks for 2007 report. Now, at mid-year, we turn to the 20 advisors whose picks showed the strongest gains to get an update on their previous picks, as well as a new favorite stock for the second half of the year.

Nick Vardy, editor of the Global Stock Investor, chose América Móvil (NYSE: AMX) as his favorite stock for 2007. It rose 39% as of 6/1/07. Here is Nick's original recommendation for AMX and his new favorite stock for the second half of 2007.

Updating his outlook on AMX, the advisor says, "Mexico-based América Móvil has been my #1 blue chip play on the global cell phone megatrend. The Latin American markets have been the strongest performing region globally. But even in that context, América Móvil has been a strong relative performer, handily outperforming the broader Mexican market, itself up 18%.

"And América Móvil has done more than make money for investors. It's also propelled controlling shareholder Carlos Slim ahead of Warren Buffett as the #2 wealthiest man in the world. If América Móvil's stock price continues its torrid pace, Slim will dethrone Bill Gates as the world's #1 by the end of the year.

"Should you still buy América Móvil? Absolutely! The stock remains a favorite of some of the world's top hedge funds. With Latin American cell phone penetration rates still hovering around 40%, América Móvil still only has one way to go -- and that's up.

"The stock is still a very good value based on a PEG ( price earnings to growth) of .58. Thanks to América Móvil's fast growth, this number has barely budged since I first recommended the stock in December."

Last December, over 100 stocks were featured in our Top Picks for 2007 report. Now, at mid-year, we turn to the 20 advisors whose picks showed the strongest gains to get an update on their previous picks, as well as a new favorite stock for the second half of the year.

John Christy, editor of the Forbes International Investment Report, chose Nokia Corp. (NYSE: NOK) as his favorite stock for 2007, which rose 39% as of 6/1/07. Here is his original recommendation for Nokia and his current opinion on the stock.

For his new favorite stock, the advisor looks south of the border, recommending América Móvil (NYSE: AMX). He explains, "Latin America has been one of the hottest regions for global investors in 2007. As of May 25, the Morgan Stanley Capital International Latin America index is up over 17% in U.S. dollar terms.

"But there's still plenty of money to be made south of the border. AMX is the dominant mobile phone service provider in Mexico. The company's reach extends beyond its home market to more than 125 million subscribers throughout Latin America, with operations in more than a dozen countries.

"Revenue topped $21 billion last year, about half of which came from outside Mexico. The company is controlled by Carlos Slim Helú, who overtook Warren Buffett earlier this year as the world's second-richest man.

Carlos Slim may be the second-richest man in the world, but he's tops with Jim Cramer.

The "Mad Money" host sang Slim's praises at length tonight on CNBC. He even said the shares of Slim's company American Movil S.A.B. (NYSE: AMX) are a buy even though they are trading at a 52-week high. The company has 80% of the Mexican wireless market and is expanding in Brazil.

Keep in mind that American Movil is up almost 100% off the lows of the year and the company has a market cap of $90 billion. This isn't exactly an unknown stock nor is it an unknown investment.

"Como se dice, el Cramero?"

Jon Ogg can be reached at jonogg@247wallst.com; he does not own securities in the companies he covers.

Warren Buffett is officially getting poorer. After just a few months as the second richest man in the world, he has been passed by Mexican telecom billionaire Carlos Slim.

According to Forbes, Slim is worth $53.1 billion and Buffett only $54.2 billion. Slim did it the hard way. He increased his net worth in the stock market. His holdings in Carso Telecom, which controls the large Mexican phone company Telmex, went up 15% and the value of his holding in wireless operator American Movil is up 4%.

The measurement means little. Slim's net worth has almost doubled in a little more than a year. The Mexican stock market is up almost 50% over that period. A slip in the economy there could easily push him back down the list. Buffett's investment in Berkshire Hathaway Inc. (NYSE: BRK..A) and Bill Gates' (No.1 on the Forbes list) holdings in Microsoft Corp. (NASDAQ: MSFT) are certainly less volatile.

Because so many of the fortunes of the people on the Forbes list are based on holdings in public companies, the list could literally be recalculated every day. The magazine may have to do that to keep up with billionaires like Slim.

Douglas A. McIntyre is a partner at 24/7 Wall St.

Each year Steven Halpern, editor of TheStockAdvisors.com, surveys the leading financial newsletter advisors asking for their favorite stocks for the coming year. This article is part of his 24th annual Top Picks Report.

America Movil (NYSE: AMX) is the top conservative idea for 2007 from Nick Vardy, editor of The Global Bull Market Alert. He notes, "Mexican billionaire Carlos Slim vies with India's Lakshi Mittal as the world's third-wealthiest man, just behind Bill Gates and Warren Buffett.

"Slim made his fortune through his Latin American telecommunications empire that includes American Movil. Spun out from Telefonos de Mexico five years ago, America Movil is Latin America's cell phone goliath with close to 110 million subscribers.

"Holding a 70% share of the Mexican market, its wireless network reaches about two-thirds of Latin America's population, and the firm continues to grow its already expansive footprint.

"Squeezed out of Venezuela by Hugo Chavez's anti-American campaign, U.S. operator Verizon is not only exiting that market, but also selling its assets in Puerto Rico and the Dominican Republic. But Verizon's loss is America Movil's gain.