How much is a PSA 10 Muk 31/90 worth?

A PSA 10 Muk 31/90 HS—Undaunted is worth about $43.49; PSA 9 about $18.23. That is about 66× the ungraded value.

How often does Muk 31/90 sell?

Muk 31/90 HS—Undaunted recorded 16 sales across every grade in the last 90 days (4 in the last 30), most recently on Nov 8, 2026. The highest recent sale was $2.48 for an ungraded copy on Oct 30, 2026.

What is the most valuable card in HS—Undaunted?

The most valuable card in HS—Undaunted is Umbreon 86/90, at about $1,085 ungraded. Muk 31/90 ranks 63rd of 91.

What set is Muk 31/90 from?

Muk 31/90 is from the English Pokémon TCG set HS—Undaunted, released Aug 18, 2010, in the HeartGold & SoulSilver era. Its rarity is Uncommon.

What is Muk 31/90 worth raw, in PSA 9 and in PSA 10?

As of Nov 12, 2026, Muk 31/90 is about $0.66 ungraded near mint (16 sales in 90 days); PSA 9 about $18.23; PSA 10 about $43.49.

Which printing of Muk 31/90 is this, and why do two copies differ in price?

Muk 31/90 comes in 2 printings: Non-Holo $0.66 ungraded, Reverse Holo $6.03 ungraded. Reverse holo or non-holo: the reverse holo’s border and text box shine; the non-holo has no shine anywhere.

Uncommon2010HeartGold & SoulSilver era

MukHS—Undaunted 31/90 price & value

Name: Muk 31/90 HS—Undaunted
Brand: Pokémon
SKU: hgss3-31

Japanese prints: 24 Japanese Muk cards are listed, $0.16 to $150 ungraded.

Muk 31/90, HS—Undaunted Pokémon card — Press the card to zoom in

UltraBall Market ValueUngraded

$0.66

up +2.4%4 weeks · Steady

Low confidence

How closely the price sources agree, and how often the card trades.

16 ungraded in the last 90 days, all conditions
9 sales on record listed as near mint
Last sale Oct 31, 2026

How we calculate the UltraBall Market Value →

High liquidity65/100

High liquidity

Trades often, at prices that agree. It counts sales, not how long a listing takes to sell.

About 5 ungraded copies sell a month across all conditions, the pace of the last 90 days.

How we measure liquidity →

Near mint · UltraBall Market Value · 16 ungraded sales in the last 90 days, all conditions · as of Nov 12, 2026

Graded: PSA 9 $18.23PSA 10 $43.49

Buy eBay UK#adEstimate take-homeRecent sales

eBay links on this page are affiliate links: we earn a commission if you buy, at no extra cost to you. It never changes our prices or which listings we show.

Prices updated Nov 12, 2026 · How we calculate the UltraBall Market Value

People ask about this card

What is Muk 31/90 worth raw, in PSA 9 and in PSA 10?: As of Nov 12, 2026, Muk 31/90 is about $0.66 ungraded near mint (16 sales in 90 days); PSA 9 about $18.23; PSA 10 about $43.49. Every grade’s price.
Which printing of Muk 31/90 is this, and why do two copies differ in price?: Muk 31/90 comes in 2 printings: Non-Holo $0.66 ungraded, Reverse Holo $6.03 ungraded. Reverse holo or non-holo: the reverse holo’s border and text box shine; the non-holo has no shine anywhere. Printings compared.

Price history

Muk 31/90 price over time

Nov 11Feb 11May 13Aug 13Nov 12

Recorded prices, joined day to day

Ungraded, 1 year: $1.09 on Nov 11, 2025, $0.66 on Nov 12, 2026. Lowest $0.49, highest $1.09.

Now: $0.66
4 weeks: +2.4%
90 days: +11%
1 year: −40%
Highest, 1Y: $1.09
Lowest, 1Y: $0.49

Recorded history starts January 2021. Earlier history is monthly averages; from July 22, 2026 the line is a smoothed 7-day average of daily prices, so single-day swings don’t show. Between recorded prices, the line and its daily values are estimated from the prices either side.

Muk 31/90 price by month

Ungraded, at the end of each month, newest first: the line above read off at each month’s last day. The latest month ends on today’s UltraBall Market Value.

Month	Ungraded	Change on month
November 2026to Nov 12, 2026	$0.66	0.0%
October 2026	$0.66	up +6.5%
September 2026	$0.62	up +1.6%
August 2026	$0.61	up +7.0%
July 2026	$0.57	–
June 2026	$0.89	up +82%
May 2026	$0.49	down −42%
April 2026	$0.83	down −5.3%
March 2026	$0.88	down −7.7%
February 2026	$0.95	up +6.7%
January 2026	$0.89	up +1.5%
December 2025	$0.88	down −20%

Matched to this exact card

Recent verified sales

Latest 8

RawNM - Muk #31/90 | Uncommon | UndauntedOffers taken · asking price shownNov 8, 2026 · eBay · Sold as near mint · Offers taken · View listing · Asking price, up to $4.34asking
Raw2010 Pokemon Undaunted - 31/90 Muk Regular - DamagedNov 8, 2026 · eBay · Sold as damaged · Offers taken (asking price; paid may be lower) · View listing · Asking price, up to $1.25asking
RawMuk 31/90 Uncommon HS�Undaunted PokemonLikely best offer · asking price shownOct 31, 2026 · eBay · Sold as near mint · View listing · Asking price, up to $2.13asking
RawMuk 31/90 Undaunted Uncommon PokemonLikely best offer · asking price shownOct 30, 2026 · eBay · Sold as light play · View listing · Asking price, up to $2.48asking
RawPokemon TCG Muk 31/90 Undaunted MPOct 28, 2026 · eBay · Sold as moderate play · View listing · $1.74
RawUndaunted #31/90 MukOffers taken · asking price shownOct 13, 2026 · eBay · Sold as near mint · Offers taken · View listing · Asking price, up to $1.99asking
RawMuk 31/90 Uncommon HGSS Undaunted Pokemon Near MintLikely best offer · asking price shownOct 10, 2026 · eBay · Sold as near mint · Buy It Now · View listing · Asking price, up to $1.99asking
RawPokemon TCG Undaunted Muk Uncommon Card #31/90 DamOct 10, 2026 · eBay · Condition not stated · Buy It Now · View listing · $0.99

Every sale here was matched to this exact card: the right number, set, printing and language, one card per listing, raw kept apart from graded. Where a venue sells by card and gives no listing title to check, the row says the venue named the card. Listings we can’t be sure of are left out. A price marked ≤ is an asking price, not a confirmed sale. On an accepted best offer we show what the buyer paid, not the asking price; where that isn’t on record the asking price is shown as a ceiling and never counts towards the price. A sale marked unusual is far from that grade’s market price: it stays on the record, and is left out of this page’s latest-sale and comparison figures. Sales record updated Nov 11, 2026.

Graded values

Muk 31/90 price by grade

Muk 31/90: market price, 4-week change, sales pace and last sale by grade
Grade	Market value	4 wk	Sales/moSales a month	Last sale
UngradedLow. How closely the price sources agree, and how often the card trades.	$0.66Last $0.99 · Oct 10, 2026	up +2.4%	5High liquidity. High	$0.99Oct 10, 2026Low. How closely the price sources agree, and how often the card trades.
PSA 1065.9× rawLimited. How closely the price sources agree, and how often the card trades.	$43.49	0.0%	No recent sales	–Limited. How closely the price sources agree, and how often the card trades.
PSA 927.6× rawLimited. How closely the price sources agree, and how often the card trades.	$18.23	down −16%	No recent sales	–Limited. How closely the price sources agree, and how often the card trades.

Each graded row counts only that grade's sales; the ungraded row counts every condition. Sales a month is the 90-day pace. Last sale is the latest verified sale, never an asking price. How we calculate the UltraBall Market Value

Grade it with PSA?

Grade yours from photos →Change the costs, or add your own odds →

If it gets a PSA 10: −$47.93
If it gets a PSA 9: −$69.85
PSA fee for a PSA 10: $59.99 Standard
Slab sale price to break even: $98.74at Standard, $59.99
Grading pays, at today’s prices: No priced grade
Historical PSA 10 rate: –

Against selling raw at $0.66, after the PSA fee for what the slab is worth (a 10 goes in at Standard, $59.99; a 9 at the same level), $25.00 shipping and insurance, and eBay US selling fees, as the selling calculator works them out, with its usual $5 postage and $1 packing on each sale: the same sum as the selling calculator. Each grade is charged the fee level its own slab price needs, so the break-even price carries the fee for a slab at that price, not the PSA 10 fee. These are outcomes if the card gets each grade, not the chance that it will. PSA has graded 5 copies; 0 got a 10.

Population report5 PSA graded · Grade breakdown and gem rate

Population

PSA graded: 5
PSA 10: 0
PSA 9: 4
Historical PSA 10 rate: –; PSA 10s of all graded

Grader	Graded	10s	9s	10s share
PSA	5	0	4	–
CGC	28	1	8	3.6%
SGC	1	0	1	–

PSA graded: 5
10s: 0
10s share: –
Historical PSA 10 rate: –

Every PSA grade (2)

PSA population by grade
Grade	Copies	Share
9	4	80%
8	1	20%

PSA’s count of Oct 15, 2026. The rate is PSA 10s over every copy PSA has graded.

CGC graded: 28
10s: 1
10s share: 3.6%
Historical CGC gem rate: 3.6%; Gem: 10s, Pristine and Perfect 10s

Every CGC grade (10)

CGC population by grade
Grade	Copies	Share
10	1	3.6%
9.5	2	7.1%
9	8	29%
8.5	7	25%
8	1	3.6%
7.5	3	11%
7	3	11%
5	1	3.6%
4	1	3.6%
Authentic	1	3.6%

CGC’s count of Nov 10, 2026. 10s share counts every 10 label; CGC’s own gem is 10s, Pristine and Perfect 10s.

SGC graded: 1
10s: 0
10s share: –
Historical SGC gem rate: –; Gem: 10s and Pristine 10s

Every SGC grade (1)

SGC population by grade
Grade	Copies	Share
9	1	100%

SGC’s count of Nov 10, 2026. 10s share counts every 10 label; SGC’s own gem is 10s and Pristine 10s.

PSA’s count of Oct 15, 2026. CGC, BGS and SGC as of Nov 10, 2026; their 10s include Pristine, Perfect and Black Label 10s. PSA counts the cards it has graded, not every copy that exists. Compare with the low pop cards and the hardest PSA 10s.

PSA 10 price against PSA’s population

The same 11 weeks, Jul 24, 2026 to Sep 28, 2026: the price on the day of each weekly PSA report, and the report’s counts. Side by side, not cause and effect.

Left: PSA 10 price, US$. Right: PSA graded copies.

About

About this card

Muk is card 31 of 90 in the HS—Undaunted price guide, a set released in August 2010 during the HeartGold & SoulSilver era. Its rarity is Uncommon. The artwork is by Midori Harada. In the checklist it sits after Metang 30/90 and before Pinsir 32/90.

It is the 63rd most valuable of the 91 priced cards in HS—Undaunted, behind Umbreon 86/90 (see the most valuable HS—Undaunted cards).

It is one of 32 English Muk cards, and ranks 25th among them by ungraded value; the most valuable is Muk from Aquapolis. Compare them all in the most valuable Muk cards.

What the data says

The ungraded value has held within 10% over four weeks (+2.4% on 7-day averages), on 16 ungraded sales in 90 days.

From prices of Nov 12, 2026 and sales to Oct 31, 2026. Observations, not advice or a forecast. How we read the market

Market snapshot

How each figure is worked out

4 weeks: +2.4%ungraded, between 7-day averages
90 days: +11%ungraded, between 7-day averages
1 year: −40%ungraded; before Jul 22, 2026 from monthly averages
Direction: Steadywithin 10% of four weeks ago, on 7-day averages
High since daily tracking: At the high$0.66 on Oct 26, 2026, 7-day average; daily prices since Jul 22, 2026
Liquidity: High5.3 ungraded sales a month over 90 days
Price confidence: Low confidenceFew recent sales in this condition. Treat the figure as a rough guide.
Ungraded sold: 4in 30 days; 16 in 90
PSA 10 population: 0of 5 PSA graded, count of Oct 15, 2026

Printings compared

Non-Holo · this pageNothing on the front shines.$0.66 ungraded
Reverse HoloThe border and text box shine; the picture is flat.$6.03 ungradedPictured: the main print’s scan.

Reverse holo or non-holo: the reverse holo’s border and text box shine; the non-holo has no shine anywhere.

Card details

Set: HS—Undaunted
Number: 31/90
Set code: UD
Rarity: Uncommon
Released: Aug 18, 2010
Era: HeartGold & SoulSilver
Pokémon: Muk
Pokédex no.: #0089
Illustrator: Midori Harada
Printings: Non-holo, Reverse holo

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Muk 31/90 (HS—Undaunted) is worth $0.66 ungraded as of Nov 12, 2026, according to UltraBall's Market Value (https://ultraball.com/cards/hs-undaunted/muk-31).

Citation

Muk 31/90 (HS—Undaunted) is worth $0.66 ungraded as of Nov 12, 2026, according to UltraBall's Market Value (https://ultraball.com/cards/hs-undaunted/muk-31).

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<a href="https://ultraball.com/cards/hs-undaunted/muk-31">Muk 31/90 (HS—Undaunted) price: $0.66 on UltraBall</a>

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Full checklist

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FAQ

Questions collectors ask

As of Nov 12, 2026, Muk 31/90 HS—Undaunted is worth about $0.66 ungraded. A PSA 10 copy is worth about $43.49. How we price cards.