TICKERMINT

Professor's Research [Professor Rowan]

Holo Rare · #147/172

Professor's Research [Professor Rowan] #147/172 (SWSH09: Brilliant Stars) is worth about $0.23 today for a Reverse Holofoil copy, the TCGplayer market price for any condition as of 2026-10-28, down 30% over 30 days. Holofoil copies are $0.15.

This card has 5 printings (TCGplayer market, 2026-10-28): Holo Rare Reverse Holofoil from SWSH09: Brilliant Stars $0.23 (this page), Promo Reverse Holofoil from Professor Program Promos $11.98, Rare Holofoil from Prize Pack Series Cards $0.37, Rare Normal from Prize Pack Series Cards $0.29, Holo Rare Holofoil from SWSH09: Brilliant Stars $0.15 (on this page's chart).

price trend and the high since we began tracking: more ↓

Professor's Research [Professor Rowan] #147/172 is trending down: $0.23 today, down 30% in 30 days and 36% below its high of $0.36 (2026-06-16), the highest since we began tracking (2024-02-08), but 2.1x its low of $0.11 (2024-08-10). TCGplayer market price as of 2026-10-28, tracked daily since 2024-02-08. chart →

illustrated by Sanosuke Sakuma

Price data for your app or store: API and daily history since 2024 · CSV download

$0.23
▼ 30.3% · 30d
Reverse Holofoil · TCGplayer market · daily · any condition ↗
condition prices from JustTCG listings, as of 2026-10-11
condition prices as of 2026-10-11; the chart and boards use the daily product tape
LOADING TAPE

WORTH GRADING?

WHERE TO BUY AND SELL

TCGplayer
$0.04
lowest listing · market $0.23
buy on TCGplayer ↗
eBay · raw
no listings
no scan yet
shop active ↗ · sold ↗
eBay · PSA 10
no graded listings
no graded asks in the last scan
PSA 10 sold listings ↗
Buy-side estimate
$0.23
THIN
a patient buyer pays about $0.23 delivered, from live asks, not sales
show the work →
TCGplayer only, no eBay scan yet
TCGplayer market$0.23verify ↗
TCGplayer lowest ask$0.04
Single source: TCGplayer market (no usable eBay asks in the last scan).
The verdict · premium
Cards 15-40% off their high after a month down 25% or more were higher 90 days later 57% of the time in our archive since 2024 (976 cases). That rate is mostly the 202448 to 5877 to 86marketplace fees of about 13% most short holds lose money. Use it to time a sale, not to flip.
The median move, the verdict and the grade-worthy math: try Premium free for 7 days →
GAME DATA[ + ] SHOW
CARD TYPE
Supporter
CARD TEXT
Discard your hand and draw 7 cards.

MORE BY SANOSUKE SAKUMA

FULL CATALOG →

MORE FROM BRILLIANT STARS

FULL SET →

PRICE FAQ

Why does Professor's Research #147/172 have different prices?

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Professor's Research #147/172 was printed 5 ways and each one sells separately: Promo Reverse Holofoil from Professor Program Promos $11.98; Rare Holofoil from Prize Pack Series Cards $0.37; Rare Normal from Prize Pack Series Cards $0.29; Holo Rare Reverse Holofoil from SWSH09: Brilliant Stars $0.23; Holo Rare Holofoil from SWSH09: Brilliant Stars $0.15 (TCGplayer market, 2026-10-28). Check the set, the rarity mark and any parallel foil, manga art or edition stamp on your copy to know which price is yours; TickerMint prices every printing on its own page.

What is Professor's Research [Professor Rowan] (SWSH09: Brilliant Stars) worth today?

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Professor's Research [Professor Rowan] [Reverse Holofoil] has a TCGplayer market price of $0.23 as of 2026-10-28. Holofoil copies are $0.15.

Is Professor's Research [Professor Rowan] going up or down in price?

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Professor's Research [Professor Rowan] #147/172 is trending down: $0.23 today, down 30% in 30 days and 36% below its high of $0.36 (2026-06-16), the highest since we began tracking (2024-02-08), but 2.1x its low of $0.11 (2024-08-10). TCGplayer market price as of 2026-10-28, tracked daily since 2024-02-08. Other windows: up 0.0% over 7 days, down 30.3% over 90 days, up 27.8% over a year. A 30-day drop this size is common after a reprint or a set rotation; the daily chart shows whether it has found a floor.

What is the highest price for Professor's Research [Professor Rowan] since TickerMint began tracking?

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TickerMint began tracking Pokemon prices on 2024-02-08, after Professor's Research [Professor Rowan] came out, so these are the highest and lowest prices since we began tracking (2024-02-08), not all-time records. In TickerMint's daily data (since February 2024), the TCGplayer market price for Professor's Research [Professor Rowan] [Reverse Holofoil] (all conditions) peaked at $0.36 (2026-06-16) and bottomed at $0.11 (2024-08-10).

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