Trademeup
Professor's Research [Professor Birch] - 221
Number221
RarityPromo
GamePokemon

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Have this card? The Trademeup index is at €25.93 right now.

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Professor's Research [Professor Birch] - 221

Professor Program Promos · 221 · Promo

Market price

€25.93-1.3%over 30 days

Holo, ungraded, condition MT/NM.

Buyer / seller pressure

BuyersSellers
Balanced

Price history

Jul 4, 2026 – Aug 21, 2026
TCGplayer · HolofoilAug 21, 2026Price $30.00data points 1

27 measurements between Jul 4, 2026 and Aug 21, 2026.

$30.60$30.30$30.00$29.70$29.4026-08-0326-08-0726-08-1026-08-1426-08-1726-08-21

9 measurements lie outside this view.

Candles are off: they need at least 12 periods with data, most of them resting on more than one measurement. This series has 27.

Indicators

Indicators that need more history than the 27 available data points are hidden.

Analysis

7 d
0.0 %($0.00)
since Aug 14, 2026
30 d
0.0 %($0.00)
since Jul 12, 2026
High
$30.00
Jul 4, 2026
Low
$30.00
Jul 4, 2026
Range
$0.00
Jul 4, 2026 to Aug 21, 2026

Based on 27 data points. No sales on Trademeup yet, so this card has no volume of its own.

About this chart
  • Days without data stay empty. Nothing is interpolated or carried forward.
  • Swipe to pan, pinch to zoom, hold to read the values.

Based on 1 of 4 signals.

  • Order book too few copies in play (0 wanted, 0 on offer, 4 needed).
  • Bid against ask needs an offer and a buy request at the same time.
  • Turnover too little turnover (0 sold, 0 on offer).
  • Price trend -1.3% in 30 days, from 9 observations.
How this number is made upTCGplayer
  • TCGplayer€25.93
    100% of the result

    27 observations, Jul 4, 2026 to Aug 21, 2026. Quoted in USD at 30.00.

Every marketplace counts once, however often it reports. Inside one marketplace an observation loses half its weight every 14 days, and nothing older than 90 days counts at all. Our own sales never weigh more than all quotations together.

Foreign currencies converted at the ECB reference rate of each observation's own day, most recently Aug 21, 2026.

The Trademeup index is the median of real sales on this marketplace (7/30 days, per condition). External source curves are shown for comparison.

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