Have you ever been near the point of giving up on a stock but then found a reason for optimism? This story has repeated itself through the years -- sometimes with stocks that went on to become huge winners, such as Amazon and Apple. 

Investors already have a new example of this phenomenon in the new year. By the end of 2022, DermTech's (NASDAQ: DMTK) shares were down more than 90% below the previous high. Many investors who hadn't already thrown in the towel were probably at least thinking about doing so.

But this under-the-radar healthcare stock has more than tripled so far in 2023. And it could have more room to run.

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Source Fool.com