While Brazil is Latin America's heavyweight, Argentina has several well-performing stocks trading in the U.S., too. Three Argentine companies are in the IBD 100, with a few others boasting high IBD Ratings. The clear leader is MercadoLibre (MELI), which is sort of a combination of eBay (EBAY) and Amazon.com (AMZN) . In fact, eBay owns a stake in MercadoLibre. The bulk of MercadoLibre's business is in Brazil, with sales in other Latin countries.