
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: $12,001, PSA 9: $4,500, PSA 8: $4,400, Raw: $1,200. The most recent PSA 10 sale was $12,001 on September 1, 2026, with 23 sales tracked in the last 30 days. The most recent PSA 9 sale was $4,500 on August 10, 2026. A raw (ungraded) copy last sold for $1,200 on July 12, 2026. CardIndex has tracked 47 total sales across all grades for this card. There are currently 3 active listings for Groudon.