Magikarp & Wailord GX

SM Promos · #SM166/131 · Promo · 2016

$160.75
Market price 18.7% (30d)
Prices as of Aug 14, 2026
1,247graded pop
1%gem rate
-31%off ATH $87.85 · Jul 2026
Market data

Price history

Holofoil 2.8% 7d
Low $90.00Mid $215.00

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Graded market

Graded values

PSA 10 report →updated 2026-08-14
Grade 6 est.$57.67
Grade 5 est.$48.57
Grade 4 est.$40.07
Grade 3 est.$33.39
Grade 2 est.$27.32
Grade 1 est.$23.07

Grades 1–6 are estimates modeled from the raw price — PSA/CGC/BGS 7–10 and Ungraded are live tracked market values.

PSA 10 price history$37,210.00

PSA 10 chart is building — graded values are tracked nightly, a new point appears each day.

Graded population census · updated 2026-07-07

PSA1,247 graded · 10 gem 10

Population data from PriceCharting, updated monthly.

How much is Magikarp & Wailord GX #SM166/131 worth?

Right now (August 14, 2026) the going rate for an ungraded Magikarp & Wailord GX #SM166/131 from SM Promos is about $160.75.

Grading changes the math on this one: a PSA 10 is valued around $37,210.00, roughly 231.5x the raw price, while a PSA 9 sits near $2,024.68. 1,247 copies have been graded to date, and 1% of them came back a 10 — worth knowing before you pay grading fees.

These figures come from nightly market-data syncs verified against completed sales. Use the chart above to see the trend before you buy or sell.

Collecting SM Promos?Full master set guide — every card, chase list, and completion cost