3 Unusual Growth Stocks to Buy Now

The S&P 500 has had a wild run-up over the past 12 months, returning about 54%. That said, the index now looks significantly overvalued, with an overall price-to-earnings (P/E) ratio of 41.5. In a market like this, it's increasingly hard to find growth stocks that are still trading at reasonable prices. To do so, you have to think a little outside the box.

It may seem like strange advice today to suggest adding shares of a student loan issuer, a cryptocurrency miner, and an innovative medical imaging firm to your portfolio. However, Sallie Mae (NASDAQ: SLM), Riot Blockchain (NASDAQ: RIOT), and Nano-X Imaging (NASDAQ: NNOX) have returned 160%, 1,100%, and 85%, respectively, over the past year, and there are good reasons to think they have more gains in store for investors.

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Source Fool.com