With a current market cap that exceeds $500 billion, (NYSE: V) is a familiar company. The payments network facilitates cashless transactions across the globe for merchants and consumers. There might even be a Visa-branded credit card in your wallet right now.

Without a doubt, this financial stock has been a huge winner. In the last decade, it has climbed 392%, a gain that's beaten the S 500 by a wide margin. Investors might be eyeing the stock as a potential addition to their portfolios.

But don't buy Visa shares unless you know these three important aspects of the business first.

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Source Fool.com