10 Hottest Mid-Cap Stocks So Far in 2025

7. CleanSpark (NASDAQ:CLSK)
  • YTD Performance: 25.6%

CleanSpark (NASDAQ:CLSK) is a pure-play Bitcoin miner. As I said before, Bitcoin miners are quite unpredictable and are for people who are fine with making very high-risk, high-reward bets.

CleanSpark’s annual revenues came in at $378.9 million for fiscal 2024. Of course, revenue alone doesn’t tell the whole story. Their net loss was at $145.8 million for the year, but adjusted EBITDA rose to $245.8 million from $25 million in the prior fiscal year.

In addition, CEO Zach Bradford said their growth strategy set them up nicely in a market that’s becoming more bullish on Bitcoin — he specifically said they’ve been on a “sustained growth trajectory.”

All things considered, if Bitcoin continues climbing, expect CLSK to do the same. If the reverse happens, it could end up in a disaster.