Woofun AI reports that investor Serenity expressed bullish sentiment toward the humanoid robotics sector, specifically highlighting Agility Robotics and Unitree. Serenity identified Agility Robotics as their largest position in this field, citing a preference for American firms. Regarding upstream components, Serenity disclosed holdings in Harmonic Drive (6324) due to its significant bill of materials proportion, and Vishay Precision for its sensor business and potential Tesla Optimus supply role. While optimistic about LeaderDrive (688017) and Schaeffler, Serenity does not hold positions in them. Indirect exposure is gained through AI data center storage companies. Serenity referenced a Goldman Sachs report noting Korean companies account for 30% of global production and emphasized that these are personal views, not investment recommendations.