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Porygon [Green Back] #137 Pokémon card from Japanese Topsun
Japanese

Porygon [Green Back] 137/248

Topsun· Language: Japanese

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Porygon [Green Back] #137 from Japanese Topsun currently trades at $14.53 raw, with PSA 10 copies reaching $532.00: a 36.6x grade premium. Price is up 5.1% in the last 30 days, though the 90-day trend tells a different story at -7.9%. Worth watching for a clearer direction.
Current Prices (USD)
Ungraded
$14.53
PSA 7
$32.50
PSA 8
$48.50
PSA 9
$74.02
PSA 10
$532.00
ACE 10
—
BGS 10 Black
$3,460.00
CGC 10 Pristine
$120.00
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Raw Price Trend
7d
—
30d
+5.1%
90d
-7.9%
180d
—
1y
+70.7%
2y
+113.7%
5y
—

Quick price facts

Porygon [Green Back] 137/248 from Topsun has a current raw market value of $14.53.

Current raw value
$14.53
PSA 9 value
$74.02
PSA 10 value
$532
Raw value 30d
+5.1%
PSA 10 premium vs raw
36.6× raw
View all cards from Topsun →
Collector Intel
36.6x
Raw → PSA 10
High-risk grade
5.1x
Raw → PSA 9
Grade multiplier
+5.1%
30d Price Move
Rising

Calculated from price history, PSA population data, and market trends. Not financial advice.

Grading Calculator

Figures below are the gross raw-to-PSA-10 spread. PSA grading fees vary by card value and service tier — check psacard.com/services for the fee applicable to this card. Assumes a perfect PSA 10; actual outcome depends on card condition.

⚠️ High-variance grade. PSA 10 is 37x the raw price. The expected value accounts for the realistic probability.
$15
Raw Price
$532
PSA 10 Value
+$517
Gross Premium (PSA 10)
before PSA fees
Grade Multiples vs Raw
PSA 9$745.1x raw
PSA 10$53236.6x raw

Frequently asked questions

How much is Porygon [Green Back] #137 from Japanese Topsun worth?+
Porygon [Green Back] #137 from Japanese Topsun currently reads Raw: $14.53, PSA 9: $74.02, PSA 10: $532 in our aggregated recent-sales price guide. The guide is rebuilt nightly from sold-sales data across the major Pokémon TCG marketplaces, never asking prices.
Is Porygon [Green Back] #137 worth grading?+
The PSA 10 price of $532 is 36.6× the raw price of $14.53. Grading fees vary by card value and PSA service tier — see PSA's current fee page before submitting.
Where do PokePrices Porygon [Green Back] #137 prices come from?+
Raw, PSA 9 and PSA 10 figures come from our aggregated recent-sales price guide, rebuilt nightly from sold-sales data across the major Pokémon TCG marketplaces. The displayed values are guide numbers, not individual listings. PSA population data is sourced directly from PSA's public population reports. Asking prices are never used; only confirmed sales activity feeds the guide.