Mark McGwire Base #656 · Upper Deck (1991) | PopHunter

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Front

Mark McGwire

Name: Mark McGwire
Brand: Baseball
SKU: cmqeqbevh5fm9z814j3chkj8d

Base

Upper Deck · #656 · 1991

eBaySearch Sold comps

PSA 10 $

$19

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

56.0

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

56.0

8 weighted signals

Scarcity20%

Demand15%

Value Gap15%

Sales Vol.10%

Gem Rate10%

Momentum10%

Supply10%

Age10%

100

Score drivers: grade price gap (70) and vintage age (100). PSA 10 population data is not yet available for this card. The PSA 10 price is 1.9x PSA 9, which may be low for a card with this scarcity profile. Signals are mixed — no strong edge indicated at current prices.

Market

PSA10 / PSA9

1.88x

Active Listings

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PSA10 Mkt Cap

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PSA 10 Price

$19

30D PSA10

0.0%

90D PSA10

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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

Mark McGwire #300 #300

1989 · Upper Deck

Mark McGwire #5 #5

2018 · Topps Silver Pack 1983 Chrome Promo

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.