Ask a Fool: Are Any Bitcoin Stocks Worth Buying?

I consider bitcoin and other digital currencies to be highly speculative investments, and people shouldn't buy them with any money they can't afford to lose.

Stocks of companies that could profit by the surge in digital currencies can be a smart idea, but there are two categories of these "bitcoin stocks" that you need to be aware of.

First, there are companies who could use bitcoin to add to an existing, successful business model. Square (NYSE: SQ) is an excellent example. The company is building a small-business financial ecosystem, and its personal finance solutions, like its Square Cash app, are rapidly gaining popularity. Recently, the company announced that it planned to test out bitcoin buying and selling through the app. In other words, bitcoin adoption could certainly add to the company, but it isn't close to being Square's only focus.

Source: Fool.com