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Professor's Research: Professor Sada 155

Professor's Research: Professor Sada 155 Reverse Holo

Journey Together · Common · #155

The Reverse Holo printing — a separate card from the standard version.

£0.32
0.0%1D
-13.5%7D
-8.6%30D
Find this on eBay UK

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Prices by grade

Today's figures for every tier. Graded history starts building tonight.

Raw · ungraded£0.32
Grade 9£7.86
Grade 9.5£8.86
PSA 10£23.52
BGS 10£30.28
CGC 10£14.03

At a glance

30-day high£0.38
30-day low£0.30
Tracked high£0.38
Days tracked60
IllustratorTaira Akitsu

Price history

42 readings · 60d
HoloHawk Est. MarketPriceChartingPulseTCG awaiting data
21 Aug25 Aug25 Aug28 Aug
HoloHawk Est. MarketPriceChartingPulseTCG awaiting data
29 Jul1 Aug9 Aug28 Aug
HoloHawk Est. MarketPriceChartingPulseTCG awaiting data
29 Jun13 Jul26 Jul28 Aug
HoloHawk Est. Market · PriceCharting · PulseTCG. Hover any point for that day's figures. Flat sections mean the price did not move — a reading is recorded only when it changes. PulseTCG has no readings for this card yet.

Graded price history

PSA 10 · £23.52
PSA 10Grade 9.5Grade 9BGS 10CGC 10
4 Jul16 Jul28 Jul28 Aug
Graded prices from PriceCharting, in GBP. PSA 10 has been tracked since April 2026; the other tiers began recording 3 August 2026 and join the chart as their history builds.

New listings per day

0 today

How many new UK listings appear for this card each day. Rising supply against a falling price is the clearest sell signal there is. This counts what we saw, so it is a sample of the market rather than a total.

25 Aug27 Aug28 Aug30 Aug
New UK listings we saw appear each day. A direct count of what the scanner observed, not an estimate of everything on eBay. Source: HoloHawk, observed directly on eBay UK.

Confirmed sales per day

From tomorrow
How often this card actually sells We record roughly 4,600 UK auction outcomes a day across the catalogue. From tomorrow this charts how many close with a winning bid, day by day.

Only auctions that finished with a bid count. A listing vanishing is not proof of a sale, so it is not counted as one.

Recent confirmed sales

Recording live
No confirmed sales for this card yet We log every UK auction that closes with a winning bid — around 4,600 a day across the catalogue. The first result for this card appears here as soon as one sells.

On sale now in the UK

1 live

Fixed-price listings we are currently tracking, cheapest first. Asking prices, not sales, and a sample of what is listed rather than everything on eBay. Each row opens the listing on eBay — HoloHawk earns a commission on purchases made through it, and it never changes the price you pay.

ListingCondition Ask
POKÉMON TCG PROFESSOR'S RESEARCH REVERSE HOLO 155/159 COMMON JOUUngraded£5.48
Where these numbers come from

Three independent readings, shown side by side rather than blended into one figure:

HoloHawk Est. Market Our own estimate, from live UK listings
PriceCharting Published reference price, USD converted to GBP
PulseTCG Published reference price, natively GBP

A reading is stored only when a price actually changes, so flat stretches mean the price held — not that data is missing. Where a source has no history for an item its line is absent rather than flat. Confirmed sales are UK auctions that closed with a winning bid, observed within three minutes of close, so each is a lower bound. Live listings are asking prices, not sales. Supply and sales counts are direct observations — listings we saw appear and auctions we saw close with a bid. We do not infer that a listing sold because it disappeared, so nothing here depends on that guess.

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