Square

The payment startup, which runs Cash App, generated $2 million in gross profits which it attributed to the bitcoin price rally.

Mobile payment company Square is expanding its bitcoin trading support to all 50 states through its Cash App. This means that residents in all corners of the U.S. can utilize the platform to purchase and sell the digital currency.

"The world ultimately will have a single currency. The internet will have a single currency. I personally believe that it will be bitcoin," says Dorsey.

Since making the announcement, Square has seen its stock climb nearly 3 percent.

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