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Under the Holo
Reference image of Professor's Research, Pokémon GO

Professor's Research

Pokémon GO · No. 084/78 · 2022 · Secret Rare

€15.23 Cardmarket trend, ungraded · last read 2026-09-16, not re-read on 2026-09-17

1 day
not re-read on 2026-09-17
7 days
not re-read on 2026-09-17
30 days
not re-read on 2026-09-17
Low
€4.99
30-day average
€15.86
Rank by trend
#775 of 8,237
Active listings
Set not tracked

Active listings: the active ungraded listings (eBay, tracked sets) the radar holds for this card — a count of what is offered, never of what sold; graded copies are not counted. Over 24 readings in 30 days the day-to-day moves had a standard deviation of 4.15%.

Price history

Cardmarket trend and low, one reading a day, on a real time axis: where the line breaks, the source was not re-read for more than three days, and nothing is drawn to fill the hole.

Every reading as a table (38)
Readings of Professor's Research, newest first
DateTrendLow30-day averageSource
2026-09-16 €15.23 €4.99 €15.86 tcgdex
2026-09-15 €15.10 €4.99 €15.86 tcgdex
2026-09-14 €14.30 €4.99 €15.86 tcgdex
2026-09-13 €12.84 €4.99 €16.08 tcgdex
2026-09-12 €12.57 €4.99 €16.08 tcgdex
2026-09-11 €12.57 €4.99 €16.08 tcgdex
2026-09-10 €12.17 €4.99 €16.38 tcgdex
2026-09-05 €12.53 €5.99 €16.58 tcgdex
2026-09-04 €12.53 €5.99 €16.58 tcgdex
2026-09-02 €13.61 €5.99 €16.58 tcgdex
2026-09-01 €13.61 €5.99 €16.58 tcgdex
2026-08-31 €13.61 €5.99 €16.58 tcgdex
2026-08-30 €13.61 €5.99 €16.58 tcgdex
2026-08-29 €14.06 €5.99 €16.81 tcgdex
2026-08-28 €14.74 €5.99 €16.81 tcgdex
2026-08-27 €14.74 €5.99 €16.81 tcgdex
2026-08-26 €14.74 €5.99 €16.81 tcgdex
2026-08-25 €15.99 €5.99 €16.81 tcgdex
2026-08-24 €16.93 €5.99 €16.81 tcgdex
2026-08-23 €16.93 €5.99 €16.81 tcgdex
2026-08-22 €16.93 €5.99 €17.07 tcgdex
2026-08-21 €16.93 €5.99 €17.07 tcgdex
2026-08-20 €16.91 €5.99 €17.07 tcgdex
2026-08-19 €17.57 €5.77 €17.07 tcgdex
2026-08-18 €17.48 €5.77 €17.07 tcgdex
2026-08-17 €17.48 €5.77 €17.07 tcgdex
2026-08-16 €17.48 €5.77 €16.64 tcgdex
2026-08-15 €17.33 €5.77 €16.64 tcgdex
2026-08-14 €17.33 €5.77 €16.64 tcgdex
2026-08-13 €17.33 €5.77 €16.64 tcgdex
2026-08-12 €17.33 €5.77 €16.64 tcgdex
2026-08-11 €17.83 €5.77 €16.64 tcgdex
2026-08-10 €17.83 €5.77 €16.64 tcgdex
2026-08-09 €17.83 €5.77 €16.64 tcgdex
2026-08-08 €18.26 €5.77 €16.71 tcgdex
2026-08-07 €18.26 €5.77 €16.23 tcgdex
2026-07-27 €16.30 €16.14 tcgdex
2026-07-26 €16.30 €16.14 tcgdex

Printings

Each printing is a different product with its own price. Cardmarket in euros and TCGplayer in US dollars, side by side and never converted: two markets, not one price.

Cardmarket (EU) · EUR · 2026-09-16

PrintingLowTrend30-day
holo €4.99 €15.23 €15.86

TCGplayer (US) · USD · 2026-08-07

PrintingLowMarketHigh
holo $6.98 $9.18 $499.99

The headline figure above is the lowest-priced Cardmarket printing — the conservative reference the whole site keys on. A first edition or a shadowless copy is priced in its own row.

Observations of public market figures, not appraisals: Cardmarket’s European figures for ungraded copies via TCGdex, TCGplayer’s US figures via pokemontcg.io. Under the Holo is not affiliated with Cardmarket, TCGplayer, TCGdex, eBay or The Pokémon Company.

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