How much is Polymerization (A) (Secret Rare) worth right now?

Polymerization (A) (Secret Rare) from Speed Duel GX: Duel Academy Box is trading around $0.80 raw (ungraded) on the secondary market. TCGIndex refreshes this price every day.

Is Polymerization (A) (Secret Rare) going up or down?

Polymerization (A) (Secret Rare) is up 23.1% over 30 days, unchanged over 7 days. The full price history is on this page.

Is Polymerization (A) (Secret Rare) a good investment?

TCGIndex doesn't give financial advice, but here's the data worth knowing: it sits around $0.80, up 23.1% over the last 30 days, with low volatility. Prices can move fast, so look at the trend and your own timeframe before you buy. TCGIndex publishes one Yu-Gi-Oh pick every morning; each pick becomes public 14 days later and is scored at day 30.

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Yu-Gi-Oh · Secret Rare

Polymerization (A) (Secret Rare)

Name: Polymerization (A) (Secret Rare) (Speed Duel GX: Duel Academy Box)
Brand: Yu-Gi-Oh
Availability: InStock

SGX1-ENA12Speed Duel GX: Duel Academy Box

$0.80

+$0.15+23.1% · 30D

Live TCGplayer market price

Where these prices come from

Yu-Gi-Oh prices on TCGIndex are TCGplayer market prices (the US market), in US dollars. Another currency is a conversion from USD at the day's rate, not a European market price. We do not use Cardmarket or Cardtrader prices for Yu-Gi-Oh.

Confidence

62/100

Reliable

7-Day Change

+0.0%

vs last week

Market Trend

Stable

TCGplayer price

BuyBuy on TCGplayer Recent eBay Sales

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Before the price moves

We find the Yu-Gi-Oh cards about to rise.

Every night the model scores every Yu-Gi-Oh! card on the market. Every morning at 07:30 UTC it publishes the one most likely to gain 10% within 30 days, with its entry price and the reasons, then scores it in public.

Hit +10%: 54%
Average return, day 30: +16.8%
Picks scored: 147

Last 90 days, live picks only, losses included.

Picked before they moved

+232.5%

Assault Blackwing - Kusanagi the Gathering Storm (Starlight Rare)

$11.87 → $39.47

+127.7%

Superdreadnought Rail Cannon Gustav Rocket (Starlight Rare)

See today’s Yu-Gi-Oh! pick

Published this morning, public in 14 days. Full record

Pick of the day

Today’s Yu-Gi-Oh! pickBreakoutEntry $20 to $50

A Yugioh chase rarity turned sharply off its quarter low this week while its set slipped, with an older high still sitting well overhead.

See today’s Yu-Gi-Oh! pickPublic in 14 days, when 59% of the move is gone. Full record

Price & Volume

Market price Sales volume

Jan 2026 – today

Price by Condition · 5

Anchored to market price · condition spread from TCGplayer

Near Mint

1st Edition · English

$0.80

+6.7%

Lightly Played

1st Edition · English

$0.48

-7.7%

Moderately Played

1st Edition · English

$0.48

+0.0%

Heavily Played

1st Edition

$0.20

Damaged

1st Edition · English

$0.30

+0.0%

Polymerization (A) (Secret Rare) price history

Near Mint market price on the dates below, from TCGIndex's daily record (75 days tracked). High $0.80 on Nov 2026, low $0.50 on Jan 2026.

When	Price	vs today
Today	$0.80
7 days ago	$0.80	+0.0%
30 days ago	$0.65	+23.1%
90 days ago	$0.55	+45.5%
6 months ago	$0.63	+27.0%

Month	Month-end price
Jan 2026	$0.50
Feb 2026	$0.64
Mar 2026	$0.74
Apr 2026	$0.64
May 2026	$0.63
Jun 2026	$0.56
Jul 2026	$0.65
Aug 2026	$0.60
Sep 2026	$0.56
Oct 2026	$0.74
Nov 2026	$0.80

Polymerization (A) (Secret Rare) FAQ

How much is Polymerization (A) (Secret Rare) worth right now?: Polymerization (A) (Secret Rare) from Speed Duel GX: Duel Academy Box is trading around $0.80 raw (ungraded) on the secondary market. TCGIndex refreshes this price every day.
Is Polymerization (A) (Secret Rare) going up or down?: Polymerization (A) (Secret Rare) is up 23.1% over 30 days, unchanged over 7 days. The full price history is on this page.
Is Polymerization (A) (Secret Rare) a good investment?: TCGIndex doesn't give financial advice, but here's the data worth knowing: it sits around $0.80, up 23.1% over the last 30 days, with low volatility. Prices can move fast, so look at the trend and your own timeframe before you buy. TCGIndex publishes one Yu-Gi-Oh pick every morning; each pick becomes public 14 days later and is scored at day 30.

Other printings of Polymerization

Polymerization has 74 other priced printings, from $0.10 to $0.50. Cheapest first.

And 44 more, priced above these.

Polymerization (A) (Secret Rare)

We find the Yu-Gi-Oh cards about to rise.

Polymerization (A) (Secret Rare) price history

Polymerization (A) (Secret Rare) FAQ

Other printings of Polymerization

More cards from Speed Duel GX: Duel Academy Box