Jefferies has initiated coverage on Cipher Mining, Hut 8, and TeraWulf with a Buy rating, citing their pivot toward AI data center operations. The analyst action follows TeraWulf's surge to new four-year highs, driven by AI and power market enthusiasm. Separately, Twenty One Capital reported the lowest short interest among mid-mega cap firms in April, with IREN, Hut 8, and Circle Internet among weekly gainers, per Seeking Alpha data.