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Professor Oak's Research
Expedition Base Set · #149
$1.96latest TCGplayer median
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Price history (TCGplayer median, ~180 days)
About Professor Oak's Research #149's market value
Professor Oak's Research #149 (Normal, Uncommon) from Expedition Base Set (2002) has a market price of $1.96 raw as of September 19, 2026, the TCGplayer market price for this exact printing. For context, the median Expedition Base Set card is $36.50; this one ranks #308 of 324 priced printings. Over the last 30 days the price has held steady (+1.0%), +3.7% in the last week. Its 180-day range is $1.66 to $1.96 — it is trading near the top of that range.
Graded copies of Professor Oak's Research sell for more than raw. A PSA 10 has a recent sale median of $44.99, about 1.2× the raw price (3 recent sales) — thin data, treat as indicative. PSA 9 copies go for around $29.99, about 15× the raw price (3 recent sales) — thin data, treat as indicative. Other grades we track: PSA 8 at $33.49, PSA 7 at $19.65, CGC 9 at $17.99. Graded medians come from recent eBay sold listings and refresh daily.
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