The fact that half of the world's adults don't have a formal bank account is music to the ears of Citigroup (NYSE:C), MasterCard (NYSE:MA), and Visa (NYSE:V). In this segment of The Motley Fool's financials-focused show, Where the Money Is, banking analysts Matt Koppenheffer and David Hanson discuss the incredible opportunity in front of these three companies. Due to their ability to scale operations, David believes MasterCard and Visa are better positioned to thrive in these new markets.

David Hanson has no position in any stocks mentioned. Matt Koppenheffer owns shares of Citigroup. The Motley Fool recommends eBay, MasterCard, and Visa. The Motley Fool owns shares of Citigroup, eBay, MasterCard, and Visa. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.