10 of 44
10. Marcos Galperin
Founder and CEO, MercadoLibre
Age: 39
Rank change: New
Industry: Technology

In 1999 the Argentine B-school student built an early Internet lead in Latin America, founding online marketplace MercadoLibre; eBay bought an 18% stake in 2001. Since its 2007 IPO, its stock has climbed 127%; revenue grew 26% last year. Galperin's online platform competes with eBay's PayPal, which may be an issue going forward, especially with 43 million registered users and counting. But the 52,000 Latin Americans who now get most or all of their income selling products on the platform aren't complaining.

Good sport: Galperin played junior national rugby in Argentina.

NEXT: 11. Greg Jensen
Last updated October 14 2010: 1:25 PM ET
Highest paid under 40 Which young executives at public companies brought home the most bacon this year? And exactly how much bacon are we talking about? More
Where is the economy heading? This year's innovators offer their economic predictions for the next few years and beyond. More
Ones to watch They may not have made the list this year, but we're keeping an eye on these rising stars. More

Most stock quote data provided by BATS. Market indices are shown in real time, except for the DJIA, which is delayed by two minutes. All times are ET. Disclaimer. Morningstar: © 2018 Morningstar, Inc. All Rights Reserved. Factset: FactSet Research Systems Inc. 2018. All rights reserved. Chicago Mercantile Association: Certain market data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved. Dow Jones: The Dow Jones branded indices are proprietary to and are calculated, distributed and marketed by DJI Opco, a subsidiary of S&P Dow Jones Indices LLC and have been licensed for use to S&P Opco, LLC and CNN. Standard & Poor's and S&P are registered trademarks of Standard & Poor's Financial Services LLC and Dow Jones is a registered trademark of Dow Jones Trademark Holdings LLC. All content of the Dow Jones branded indices © S&P Dow Jones Indices LLC 2018 and/or its affiliates.