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Professor's Research 178

Professor's Research 178

Sword & Shield · Rare Holo · #178

£1.36

HoloHawk · live UK market

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Prices by grade

Today's figures for every tier.

Raw · ungraded£0.13
Grade 9£22.25
Grade 9.5£24.48
PSA 10£26.70
BGS 10£34.86
CGC 10£4.81

At a glance

Days tracked139
IllustratorYusuke Ohmura

Price history

113 readings · 139d
£1.36HoloHawk£0.13-40.9%PriceChartingPulseTCG awaiting data
24 Aug24 Aug26 Aug26 Aug31 Aug31 Aug
£1.36HoloHawk£0.13-40.9%PriceChartingPulseTCG awaiting data
1 Aug2 Aug4 Aug9 Aug20 Aug31 Aug
£1.36HoloHawk£0.13-13.3%PriceChartingPulseTCG awaiting data
14 Apr7 May3 Jun25 Jun18 Jul31 Aug
Three independent readings on one scale. A reading is recorded only when a price changes, so a flat stretch means it held. Hover for any day. PulseTCG has no readings for this card yet.

Graded price history

PSA 10 · £26.70
£26.700.0%PSA 10£24.480.0%Grade 9.5£22.250.0%Grade 9£34.860.0%BGS 10£4.810.0%CGC 10
14 Apr7 May3 Jun25 Jun18 Jul31 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.

9 Aug17 Aug24 Aug1 Sept
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

Building
How often this card actually sells We record roughly 4,600 UK auction outcomes a day across the catalogue. This charts how many close with a winning bid, day by day, from the first confirmed sale for this card.

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
PSA 10 Professor’s Research 178 | Black Star Promo | Pokemon GO Graded£63.10
Where these numbers come from

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

HoloHawk Our own market price, 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.

Also in Sword & Shield

Small But Mighty Premium Collection £579
Gengar 85 Prize Pack £564
Galar Partners Box: Inteleon V £148
Origin Forme Palkia Vstar Premium Collection £102
Spring 2020 Collector's Chest £88.67