Bloom Energy (BE) shares rose 8% to $233.69 during Thursday's trading session, as renewed market risk appetite boosted high-beta stocks, though its fuel cell peers FuelCell Energy (FCEL) and Plug Power (PLUG) saw more modest gains. The stock is considered a high-beta representative of the AI on-site power theme, following better-than-expected Q2 revenue of $1.07 billion and an upward revision of its full-year revenue guidance to $3.9 billion to $4.2 billion.