Professor Oak's New Theory
Lowest ask = the cheapest current listing. Market = TCGplayer’s rolling market price. Latest daily snapshot: Aug 31, 2026.
Market read
Snapshot of Aug 31, 2026: $0.25 is the cheapest listing we can see for Professor Oak's New Theory, with TCGplayer's market price at $0.82. Measured against a 7-day trailing median of $0.83, the current ask sits 69.9% below. Confidence is verified, backed by 38 daily observations, with the ask and market price tracking each other closely. It is one of 38 Uncommon cards we track in HeartGold SoulSilver (124 cards in the set overall). Prices are asks from current listings, not completed sale prices, and the snapshot refreshes once daily.
Price history
Daily TCGplayer market and lowest-ask price for Professor Oak's New Theory from the InkSight Pokémon Trading Card Game snapshot. Interactive chart loads with the latest daily snapshot.
Marketplace
Compare TCGplayer singles, eBay raw and graded listings, and Whatnot live breaks. Affiliate links load with latest daily snapshot pricing.
Set context
HeartGold SoulSilver. Browse every HeartGold SoulSilver card →. See more Pokémon Trading Card Game pricing on the market hub, movers, and top cards. See every Professor Oak's New Theory card we track.
Related cards
Other printings, same-rarity neighbours and cards from HeartGold SoulSilver.
