Mike Piazza Base #139 · Topps Opening Day (1999) | PopHunter

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Mike Piazza

Name: Mike Piazza
Brand: Baseball
SKU: cmqetfuy5a2rqz814ipkkcsx9

Base

Topps Opening Day · #139 · 1999

eBaySearch Sold comps

PSA 10 $

$30

PSA 10 Pop

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Gem Rate

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30D Change

0.0%

Market data as of Jun 14, 2026

Opportunity

47.8

Collector

Collector to unlockUpgrade

Investor

Investor to unlockUpgrade

Speculation

Investor to unlockUpgrade

See pricing to unlock Collector, Investor & Speculation scores

How this score is calculated

Opportunity Score

47.8

8 weighted signals

Scarcity20%

Demand15%

Value Gap15%

Sales Vol.10%

Gem Rate10%

Momentum10%

Supply10%

Age10%

100

Score drivers: vintage age (100). PSA 10 population data is not yet available for this card. Current metrics suggest lower relative priority versus comparable cards.

Market

PSA10 / PSA9

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Active Listings

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PSA10 Mkt Cap

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PSA 10 Price

$30

30D PSA10

0.0%

90D PSA10

—

Raw Price

30D Raw

0.0%

90D Raw

—

Prices by Grade & Grader

Population Reports

PSA Population

PSA 10

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PSA 9

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PSA 8

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PSA 7

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PSA 6

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PSA 5

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PSA 4

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PSA 3

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PSA 2

PSA 10 Price

PSA 9 Price

PSA 10 Population

Total Population

Opportunity Score

Active Listings

Similar Opportunities

Same Player

No image

Mike Piazza #140 #140

2000 · Topps Opening Day

Mike Piazza #70 #70

PopHunter surfaces potentially undervalued scarcity and relative value signals. This is not financial or investment advice. Always do your own research before buying, selling, or grading cards.

Mike Piazza

Market

Prices by Grade & Grader

Population Reports

PSA Population

PSA 10 Price

PSA 9 Price

PSA 10 Population

Total Population

Opportunity Score

Active Listings

Similar Opportunities

Same Player

Alternative Population

Same Set / Product

Similar Price Range