Current valuation lens: Over the last 7 days, prices have remained stable at 0.0%, indicating a consolidation phase over sudden breakouts. The 90-day range spans $0.52 to $0.62 (17% spread), which indicates low-volatility behavior.
Current value remains close to its 30-day mean ($0.60). Available graded data shows PSA 9 at $75.00, which is +12612% versus raw pricing.
For Professor Cozmo's Discovery in Holon Phantoms, the current reference price is $0.59. The 7-day delta remains near neutral at 0.0%.
Versus its 30-day baseline of $0.60, this card is now 2.5% lower. In the past 90 days, observed prices ranged from $0.52 to $0.62 (17% spread), a low-volatility profile.
The listed rarity for this print is Uncommon.
Professor Cozmo's Discovery is a Holon Phantoms card from the 2006 release window. Its card type is Trainer.
The rarity label is Uncommon. This gives collectors a clear identity footprint for the print.
Card subtype classification is Supporter. Printed card effect: You can play only one Supporter card each turn.
When you play this card, put it next to your Active Pokémon. When your turn ends, discard this card.
Holon Phantoms was released in 2006. Holon Phantoms is grouped under the EX era.
Set size is 111 cards, which categorizes Holon Phantoms as mid-size. As of 2026, the set is 20 years old and fits a legacy-era profile.
In the Holon Phantoms checklist, Professor Cozmo's Discovery occupies position #89 as a Uncommon card.
Professor Cozmo's Discovery sits within a broader pool of Professor variants that can be compared by set, rarity, and price. Comparable entries in this snapshot: 2 cards, 2 distinct sets.
Comparable prices currently cover $0.15-$0.27, a 80% band. Against the sample mean of $0.21, this card is +181%.
Notable alternatives include Professor Cozmo's Discovery #10 (EX Trainer Kit 2 Plusle) at $0.15 and Professor Cozmo's Discovery #90 (Deoxys) at $0.27.
