
Holon's Voltorb from the Holon Research Tower set (#31) is a Pokemon trading card released in 2005. Current fair market values for Holon's Voltorb are PSA 9: $66, PSA 8: $20, Raw: $2.99. The most recent PSA 9 sale was $66 on July 1, 2026. A raw (ungraded) copy last sold for $2.99 on August 27, 2026. CardIndex has tracked 4 total sales across all grades for this card.