
Groudon from the Holon Research Tower set (#56) is a Pokemon trading card released in 2005. Current fair market values for Groudon are PSA 10: $15,000, PSA 9: $2,450, PSA 8: $3,000, Raw: $1,200. The most recent PSA 10 sale was $15,000 on July 23, 2026, with 20 sales tracked in the last 30 days. The most recent PSA 9 sale was $2,450 on March 22, 2026. A raw (ungraded) copy last sold for $1,200 on July 12, 2026. CardIndex has tracked 41 total sales across all grades for this card.