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Nidoking Aquapolis #150 Pokémon card
Rare Secret

Nidoking Aquapolis #150

Card #150 · Illustrated by Hironobu Yoshida
100 HPColorlessPokémonStage 2
Market value · ungraded
$999.00
PSA 10
$8,400
8× raw
16 sales · last 90 days · eBay + Fanatics + TCGplayer
Sold prices, not asking · Updated 5 July 2026
Confidence medium · How we price →
What's your copy worth?
Not sure which condition? Grade it from a photo
Estimated value · Near Mint
$999
Pro view — Trader plan and above
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Viewing:Raw / ungraded (this page)PSA 10 price pagePSA 9 price page
9 different Nidoking printings exist — is this your card? Aquapolis #150

Nidoking is a Rare Secret Pokémon card from Aquapolis (#150), illustrated by Hironobu Yoshida. It's a Stage 2 Colorless-type Pokémon with 100 HP, evolving from Nidorino, weak to Grass ×2. Its current blended market value is $999.00 ungraded, with a PSA 10 worth around $8,400 — a gem-mint grading premium of roughly 8× the raw value. Prices are aggregated across marketplaces — raw and graded, updated daily and shown in your local currency.

Prices last updated 5 July 2026.

Raw price by condition
Holofoil · live market via TCGplayer
NMNear Mint$999.00
LPLightly Played$600.00
MPModerately Played$452.50
HPHeavily Played$380.00
DMGDamaged$296.63
7-day
30-day
90-day
All-time high$999
All-time low$999
Graded prices
Ungraded (raw)$600.00
PSA graded price estimates by grade
GradeRelative valuePrice
PSA 10pop 1123 sold$8,400$7,140$9,660
PSA 9pop 4669 sold$3,500$2,975$4,025
PSA 8pop 42412 sold$2,561$2,176$2,945
PSA 7pop 3113 sold$2,190$1,862$2,519
PSA 7.02 sold$1,678$1,426$1,930
PSA 4pop 1313 sold$937$796$1,077
PSA 3pop 813 sold$659$560$758
PSA 2pop 624 sold$537$457$618
“Sold” = median of real recent sold listings at that grade (eBay or Fanatics Collect — hover a badge to see which). Other figures are blended marketplace estimates. Confidence reflects source backing and price spread — not PSA-official values.

Price history · Raw

1 Aug 20231 Jul 2026
Latest
$532.77
Period high
$532.77
Period low
$184.04
Change
161.1%

Recent sold prices

Last sold
$700
Raw · 27 Jun 2026
Typical Raw
$650
Sales · last 90 days
12
How often it sells
Sells often
12 in last 30 days

Real completed eBay sales, refreshed periodically. Grade read from the listing title. Implausibly priced listings (lots, proxies, empty slabs) and wrong-variant sales are filtered out. Links to eBay are affiliate links — we may earn a commission.

Last sold price
$432
PSA 2 · 29 Jun 2026
Typical PSA 10
$8,400
Sales · last 90 days
4
How often it sells
Sells regularly
4 in last 30 days

Real completed sale prices from Fanatics Collect — weekly and premier auctions plus marketplace Buy It Now sales, refreshed periodically. Grade read from the listing title.

Demand & liquidity

Very liquid · Sells oftenDemand 84/100
Sales · 30d12
Sales · 90d12
Price momentum0%
HypeOn the radar
Raw
$650

Last sold $700 · Raw · 27 Jun 2026

Population across graders

Only 5% of 2,209 PSA-graded Nidoking copies are a gem-mint 10 (112 of 2,209) — the rest grade lower.

PSA2,209 gradedPSA 10 · 112 · 5% gem rate
Full grade breakdown (13 grades)
10112
9466
8.511
8424
7.51
7311
6259
5227
4131
381
262
1.52
1116
CGC313 gradedCGC 10 · 23 · 7% gem rate
Full grade breakdown (5 grades)
1023
9.52
941
8.536
842
Real graded population from PSA, CGC & BGS — a lower gem rate means a Nidoking 10 is harder to pull.

Should you grade it?

+$399
Expected return across every likely grade, after fees — the realistic average, not the best case.
Only 5.1% of copies gem (PSA 10 best case +$6,897); most land at PSA 9 or below.
Target gradeEst. valueGrading feeNet vs rawMultiple
PSA 10$8,400.00$504+$6,8978.4×
PSA 9$3,499.99$229.99+$2,2713.5×
PSA 8$2,560.58$220.6+$1,3412.6×

⚖️ Risk-adjusted return

Best case isn't the whole story. Weighting every grade by how often it actually happens, across 2,209 PSA-graded copies:

Gem rate (est.)
5.1%
hit PSA 10
Expected return
+$399
net, all grades
PSA 10 best case
+$6,897
Break-even
PSA 9+
Likely outcomeChanceValue
PSA 105.1%$8,400.00
PSA 921.1%$3,500.00
PSA ≤873.8%$999.00

Net = graded value − raw value − grading cost (tier fee + ~$20 round-trip shipping), using PSA fees as of 2026-06-28; the paused PSA Value tier is excluded so this isn't overstated. Gem rate is estimated from cumulative PSA population, which skews toward nicer, resubmitted copies — so it overstates the true grade rate. Treat it as a guide, not a guarantee.

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Where to buy

Available to buy nowLive on eBay
PSA 10 slabs — buy nowLive on eBay
Check recent sold prices
Market dataCross-market spread, EU price, momentum & community buzz

Cross-market prices

130% spread
Cardmarket · cheapest$261
PriceCharting$533
TCGplayer · dearest$600

Currently 130% cheaper on Cardmarket than TCGplayer. These are independent market prices for the same card — a wide gap can mean a buying opportunity. Informational only, not arbitrage advice.

Market signal

Momentum · 30dFlat 0%
Cross-marketMarkets disagree 130% gap

Derived from this card's 90-day price history, recent trend and cross-market price gap. Informational, not advice.

🔥 Trending in the community

#9 on the radar
Mentions this week4

Nidoking is one of the most-talked-about Pokémon right now across the Pokémon investing & TCG subreddits. See the hype radar →

What people are saying: Got convinced into buying this Nidoking · 4↑

Card text

Evolves from Nidorino.

Crystal Type · Poké-Body
Whenever you attach a Grass, Lightning, or Fire basic Energy card from your hand to Nidoking, Nidoking's type (color) becomes the same as that Energy card type until the end of the turn.
Poison Horn20
Grass · Grass · Colorless
The Defending Pokémon is now Poisoned.
Rolling Thunder50
Lightning · Lightning · Fighting · Fighting
Flip a coin, If heads, this attack does 10 damage to each of your opponent's Benched Pokémon. If tails, this attack does 10 damage to each of your Benched Pokémon. (Don't apply Weakness or Resistance for Benched Pokémon.)
Weakness Grass ×2Retreat 3

About the Pokémon

Drill PokémonGEN INidoran-mNidorinoNidoking

It uses its powerful tail in battle to smash, constrict, then break the prey's bones.

Card details

Number#150
RarityRare Secret
SupertypePokémon
SubtypesStage 2
TypeColorless
HP100
Evolves fromNidorino
WeaknessGrass ×2
Retreat cost3
National Pokédex#34
Card IDecard2-150
SourceAggregated marketplaces

Other Nidoking cards

There are 9 different Nidoking printings — make sure you're valuing the right one. This is Aquapolis #150 (Rare Secret).

More from Aquapolis

Frequently asked questions

How much is Nidoking (Aquapolis #150) worth?

As of 5 July 2026, Nidoking from Aquapolis is worth approximately $999.00 ungraded (near-mint), and around $8,400 in PSA 10 gem mint. Values are blended from real Cardmarket, eBay sold and TCGplayer prices and update daily.

What is the PSA 10 price for Nidoking?

A PSA 10 (gem mint) Nidoking from Aquapolis is worth around $8,400 — roughly 8× the raw ungraded value of $999.00.

Should I grade my Nidoking?

A PSA 10 sells for about $8,400 versus $999.00 raw — roughly a 8× uplift. Grading is worth it when that premium comfortably beats the grading fee and the card is clean enough to have a real shot at a 10. See the "Should you grade it?" estimate above for net profit per grade.

Is Nidoking rare?

Nidoking is a Rare Secret card from Aquapolis (card #150), illustrated by Hironobu Yoshida. Its current blended market value is $999.00 ungraded.