Mewtwo EX

The Best of XY · #42/171 · None · 2017JPN

All 266 Mewtwo cards ranked by value →
$18.50
Market price ▲ 0.0% (30d)
Prices as of Nov 10, 2026
510graded pop
78%gem rate
7.4×PSA 10 vs raw
+$72.62EV to grade — worth it
Market data

Price history

Holofoil▲ 0.0% 7d
Low $17.50Mid $21.00High $40.00

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Graded market

Graded values

PSA 10 report →updated 2026-11-09
Grade 6 est.$9.05
Grade 5 est.$9.05
Grade 4 est.$9.05
Grade 3 est.$9.05
Grade 2 est.$8.33
Grade 1 est.$7.03

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$137.61

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

Graded population census · updated 2026-09-17

PSA410 graded · 322 gem 10
CGC100 graded · 73 gem 10

Population data from PriceCharting, updated monthly.

Auction sale integrity

New

Graded sales for this card from public auctions, each checked for shill/relist patterns and prices that don’t match the market. How this works →

Clean price · CGC 10
$25.20
High confidence — 6 corroborating sales
Recent sale price by grade · tracked by cert number
PSA 10
$110.00
last $110.00 · Sep 21, 2026 · 1 sale
CGC 10
$46.00
last $60.00 · Sep 28, 2026 · 8 sales
CGC 9.5
$19.00
last $19.00 · Aug 31, 2026 · 1 sale
CGC 9
$10.00
last $10.00 · Sep 7, 2026 · 7 sales
CGC 8.5
$8.00
last $8.00 · Sep 7, 2026 · 3 sales
Verified
CGC 10 · 9 bids · Oct 26, 2026
$34.00
Verified
CGC 10 · 8 bids · Sep 28, 2026
$60.00
Verified
CGC 10 · 10 bids · Sep 21, 2026
$46.00
Verified
CGC 10 · 11 bids · Sep 21, 2026
$46.00
Verified
PSA 10 · 13 bids · Sep 21, 2026
$110.00
Verified
CGC 10 · 5 bids · Sep 14, 2026
$15.00
Verified
CGC 10 · 5 bids · Sep 14, 2026
$15.00
Verified
CGC 10 · 5 bids · Sep 7, 2026
$23.00
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More Mewtwo cards all 266 ranked by value →

How much is Mewtwo EX #42/171 worth?

Mewtwo EX #42/171 is a None Japanese card from The Best of XY (2017) — today it trades at roughly $18.50 ungraded.

Grading changes the math on this one: a PSA 10 is valued around $137.61, roughly 7.4x the raw price, while a PSA 9 sits near $42.31. 410 copies have been graded to date, and 79% of them came back a 10 — worth knowing before you pay grading fees.

Prices on this page refresh nightly from live TCGplayer market data and are cross-checked against actual sold prices, so a single inflated listing never becomes "the price". The chart above has the full history.

Collecting The Best of XY?Full master set guide — every card, chase list, and completion cost→