A recent drop in the stock price presents a compelling buying opportunity.Add us on GoogleChoose Barron's as a preferred source of financial newsWorkers arrive at the MercadoLibre fulfillment center in Cajamar, Brazil. (Jonne Roriz/Bloomberg)It’s hard to resist a really good sale, and MercadoLibre stock looks too cheap right now.Continue reading this article with a Barron’s subscriptionSUBSCRIBE NOWAdvertisement - Scroll to Continue