The stock has plunged in the second half of 2025, but even below $20 is still a high-risk buy.NuScale Power (SMR +1.77%), the maker of nuclear small modular reactors, is down more than 58% in the past six months, and the stock closed at a little over $17 a share on Dec 16. The stock initially rode a wave of enthusiasm this summer, and then again this fall, reaching a 52-week high of $57 in October. Yet factors such as investors trimming stakes, analyst skepticism, and the fact that NuScale is still trying t ...