Current valuation lens: Weekly drift is minimal (0.0%), indicating a relatively balanced short-term market. With a 6% 90-day spread ($18.51-$19.61), this card currently tracks as low-volatility.
Current value remains close to its 30-day mean ($19.42). Graded context points to a substantial premium curve, with PSA 10 at +142% above raw pricing.
PSA 9 is currently around $60.53, while PSA 10 is $47.18.
Latest market snapshots place Underground Expedition in Skyridge at roughly $19.53. Price action is stable over 7 days, moving only 0.0%.
That is close to the 30-day average of $19.42. Its 90-day trading band runs between $18.51 and $19.61, producing a 6% range and low-volatility behavior.
This version is categorized as Uncommon.
In 2003, Skyridge introduced this print of Underground Expedition. Its card type is Trainer.
The rarity label is Uncommon. This print is categorized under the Supporter subtype.
The card text reads: You can play only 1 Supporter card each turn. When you play this card, put it next to your Active Pokémon.
When your turn ends, discard this card. Look at the bottom 4 cards of your deck.
Release year for Skyridge is 2003. It belongs to the E-Card series.
Set size is 182 cards, which categorizes Skyridge as large. As of 2026, the set is 23 years old and fits a legacy-era profile.
Underground Expedition (#140) is one of the Uncommon prints in this expansion.
Collectors tracking Underground Expedition often benchmark it against other Underground cards. This comparison sample includes 3 alternatives across 2 sets.
Comparable prices currently cover $0.17-$36.14, a 21159% band. Against the sample mean of $12.18, this card is +60%.
Notable alternatives include Underground Expedition #150 (Celestial Storm) at $0.17, Underground Expedition #168 (Celestial Storm) at $36.14, and Underground Expedition #97 (Rising Rivals) at $0.24.
