Pokémon TCG · Journey Together · #155
Professor's Research #155 price
Journey Together155Market prices
90-day range · TCGplayer
Professor's Research (#155, Common) is a card from Pokémon set Journey Together. Near Mint (Normal), it has a market price of about $0.21 on TCGplayer and €0.06 on Cardmarket (updated October 15, 2026). Over the last 7 days, its TCGplayer market price rose 16.7% and the Cardmarket price trend rose 0.0%. Over the last 30 days, its TCGplayer market price rose 16.7% and the Cardmarket price trend rose 20.0%. Over the last 90 days, its TCGplayer market price fell 12.5% and the Cardmarket price trend rose 20.0%. Its 90-day TCGplayer market price range is $0.11 to $0.29. Its 90-day Cardmarket price trend range is €0.02 to €0.07. Graded, a PSA 10 is worth about $31.36. Among the 85 Common cards of Journey Together, it is the 14th most valuable. Converted to dollars, its Cardmarket price is 68.0% lower than its TCGplayer price.
Professor's Research #155 prices by finish
| Finish | TCGplayer | Cardmarket |
|---|---|---|
| Normal | $0.21 | €0.06 |
| Reverse Holo | $0.32 | €0.66 |
Near Mint prices: TCGplayer market price, Cardmarket price trend, updated October 15, 2026.
Price changes by finish
| Finish | Price | 7 days | 30 days | 90 days | 90-day range |
|---|---|---|---|---|---|
| Normal | TCGplayer market price | +16.7% | +16.7% | −12.5% | $0.11 – $0.29 |
| Normal | Cardmarket price trend | +0.0% | +20.0% | +20.0% | €0.02 – €0.07 |
| Reverse Holo | TCGplayer market price | −3.0% | −17.9% | −31.9% | $0.30 – $0.54 |
| Reverse Holo | Cardmarket price trend | +153.8% | +247.4% | +153.8% | €0.16 – €0.77 |
Change of the same Near Mint price (same market, same finish) against 7, 30 and 90 days ago; range: its lowest and highest daily value over the last 90 days. Only where the price history supports a figure; lowest listings have none.
Follow your own copies, graded or raw, and what they are worth in Sparkl.
Professor's Research #155 graded prices
| Grade | PSA | BGS | CGC | SGC |
|---|---|---|---|---|
| 10 | $31.36 | $41.00 | $19.00 | $19.00 |
US dollars, from recent graded sales and graded market prices.
PSA has graded 3 copies of this card: 2 earned a 9 (67%), 1 an 8.
Professor's Research #155 price history
About this card
- Number
- 155
- Rarity
- Common
- Finishes
- Normal, Reverse Holo
- Rank in its rarity
- 14th of 85 Common cards
- Against its rarity’s median
- 1.3× the median ($0.16)
- Cardmarket vs TCGplayer
- −68.0% after conversion ($1.1208 per euro)
- Finish spread
- Normal $0.21 to Reverse Holo $0.32 (1.5×, TCGplayer)
- Released
- March 28, 2025
- Print language
- English
How this page is made: Near Mint prices from TCGplayer and Cardmarket, refreshed daily; ranks, medians and comparisons are computed by Sparkl from those prices.
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