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TickerMint prices every card daily from its own TCGplayer record since 2024. No black boxes.

Polymerization (A) YU-GI-OH

Common · #SGX1-ENA12

Polymerization (A) #SGX1-ENA12 (Speed Duel GX: Duel Academy Box) is worth about $0.23 today, the TCGplayer market price for any condition as of 2026-11-02, down 8% over 30 days.

This card has 2 printings (TCGplayer market, 2026-11-02): Common $0.23 (this page), Secret Rare $0.80.

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

Polymerization (A) #SGX1-ENA12 is trending down: $0.23 today, down 8% in 30 days and 8% below its high of $0.25 (2026-09-16), the highest since we began tracking (2026-09-16), but near its low of $0.23 (2026-10-08). TCGplayer market price as of 2026-11-02, tracked daily since 2026-09-16. chart →

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

LOADING TAPE

WORTH GRADING?

WHERE TO BUY AND SELL

TCGplayer
$0.05
lowest listing · market $0.23
buy on TCGplayer ↗
eBay · raw
$1.98
asking floor · 1 active listing
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 →
eBay scan is stale · only 1 usable ask survived outlier removal · TCGplayer $0.23 vs cheapest delivered eBay ask $1.98, so the market hasn't settled on a price yet
TCGplayer market$0.23verify ↗
TCGplayer lowest ask$0.05
eBay delivered floor (scanned 37d ago)$1.98the listing ↗
Formula: TCGplayer market, clamped between the cheapest real ask anywhere ($0.05) and the eBay floor ($1.98). 1 live ask(s) used.
Floors are the median of the three lowest clean asks. Marketplace links may earn TickerMint a commission; it never affects the numbers.
The verdict · premium
Across every game TickerMint tracks, cards 3-15% off their high after a month down 5-25% were higher 90 days later 50% of the time in our archive since 2024 (7,742 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
ATTRIBUTE
SPELL
CARD TYPE
Normal Spell
DESCRIPTION
Fusion Summon 1 Fusion Monster from your Extra Deck, using monsters from your hand or field as Fusion Material.

MORE FROM SPEED DUEL GX: DUEL ACADEMY BOX

FULL SET →

PRICE FAQ

What is Polymerization (A) (Speed Duel GX: Duel Academy Box) worth today?

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Polymerization (A) [1st Edition] has a TCGplayer market price of $0.23 as of 2026-11-02.

Is Polymerization (A) going up or down in price?

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Polymerization (A) #SGX1-ENA12 is trending down: $0.23 today, down 8% in 30 days and 8% below its high of $0.25 (2026-09-16), the highest since we began tracking (2026-09-16), but near its low of $0.23 (2026-10-08). TCGplayer market price as of 2026-11-02, tracked daily since 2026-09-16. Other windows: up 0.0% over 7 days.

What is the highest price for Polymerization (A) since TickerMint began tracking?

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TickerMint began tracking Yu-Gi-Oh prices on 2026-09-16, after Polymerization (A) came out, so these are the highest and lowest prices since we began tracking (2026-09-16), not all-time records. In TickerMint's daily data (since September 2026), the TCGplayer market price for Polymerization (A) [1st Edition] (all conditions) peaked at $0.25 (2026-09-16) and bottomed at $0.23 (2026-10-08).

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