---
title: "Grunkle Stan — $336/mo Amazon US Product Research (2026)"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/grunkle-stan"
last_updated: "2026-08-13T00:56:21.474Z"
locale: en
meta:
description: "Amazon product research for grunkle stan: $336/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for grunkle stan: $336/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Grunkle Stan — $336/mo Amazon US Product Research (2026)"
---
# **Grunkle Stan**
**Skip it**
A small market ($4K/yr) — this niche doesn't clear our bar today.
Market size 1Growth 51Conversion 18Competition 32Returns 23Price range 85Avg price 92Brand share 49Review moat 81Quality gap 28
**Avg price**
**Great****$21.67**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$8.30–$64.70**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Great****370.29**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Good****+21.4%**
90-day search growth — must beat 0% to launch
**Brand share**
**Okay****76%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****66%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Returns**
**Bad****5.6%**
return rate — above 5% kills the launch gate
**Conversion**
**Bad****1.5%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$4K**
$4K/yr · 13K searches
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%")
## **Is grunkle stan profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, grunkle stan is a $4K/yr Amazon United States market (13K searches/yr). The top 5 brands hold 76% of demand. Demand peaks in Sep–Oct–Nov. Verdict: Skip it — 37/100.
Data updated Jul 17, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **grunkle stan market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **750–1K**
- avg 0–100/product
- **Revenue / yr**
- **$16K–$22K**
- units × avg price
- **Conversion rate**
- **1.5%**
- **Avg BSR**
- **#26,702**
- **Page quality**
- **0%**
- **Prime**
- **88%**
- **Sponsored**
- **53%**
- **Out of stock**
- **10.1%**
- **Avg brand age**
- **52 months**
- **Avg seller age**
- **177 days**
## **Competition: brands, sellers & click share**
The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**13 **▲rising
**Sellers**
**22**
**Top-5 brand share**
**76%**
Top 20: 100%
**Top-5 click share**
**66%**
Top 20: 100%
**Open market**
**20%**
- Disney35% - Gravity falls19% - Maiteenly9% - grinderPUNCH7% - HLENOK6% - EIKOU5%
## **grunkle stan demand & seasonality**
Weekly Amazon search volume, last 89 weeks — +21.4% search growth over the last 90 days.
2K1KHoliday '24Spike '25Prime Day '25Spike '26 seasonDecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Sep, Oct, Nov · busiest ÷ quietest = 14.5×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/grunkle-stan/trend)
## **Top grunkle stan search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **grunkle stan costume**7K/yr+24.2%1.7% conv. - **grunkle stan hat**3K/yr+16.4%4.7% conv. - **grunkle stan**3K/yr+23.0%0.0% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/grunkle-stan/search-terms)
## **Top grunkle stan products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%5%$20210%$40315%$60520%$8071101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)4 products missing review or click data not plotted
All 17 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Disney Gravity Falls Grunkle Stan Fez Logo Disney Channel Adjustable Printed Baseball Hat Red**Disney**$19.73**0.0★0 rev](https://www.amazon.com/dp/B0G2YRZQ3C) [2**Gravity Falls - Grunkle Stan Fez**Gravity falls**$34.83**4.7★326 rev](https://www.amazon.com/dp/B017JMK51A) [3**Disney Gravity Falls Grunkle Stan Fez Logo Disney Channel Trucker Hat with Adjustable Mesh Back Red**Disney**$20.98**0.0★0 rev](https://www.amazon.com/dp/B0G2YVD4QG) [4**Maiteenly 8 Pcs Halloween Old Man Costumes Accessories for Man Red Fez Hat Gray Beard Eyebrow Giant Fake Ears Black Thick Glasses Long Silk Bow Tie Grandpa Accessories for Halloween Cosplay Party**Maiteenly**$13.09**4.2★24 rev](https://www.amazon.com/dp/B0D7L9CDQ2) [5**HLENOK Adult Men Grunkle Stan Costume 7 in 1 Halloween Cosplay Shirt Jacket Blazer Pants Hat Fake Ears Mustache Eyebrow Tie Outfit (X-Large)**HLENOK**$64.70**5.0★1 rev](https://www.amazon.com/dp/B0F1SHS632)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Disney Gravity Falls Grunkle Stan Fez Logo Disney Channel Adjustable Printed Baseball Hat Red**Disney**$19.73**0 rev7mo ago](https://www.amazon.com/dp/B0G2YRZQ3C) [**Disney Gravity Falls Grunkle Stan Fez Logo Disney Channel Trucker Hat with Adjustable Mesh Back Red**Disney**$20.98**0 rev7mo ago](https://www.amazon.com/dp/B0G2YVD4QG) [**Disney Gravity Falls Grunkle Stan Fez Logo Disney Channel Trucker Hat with Adjustable Mesh Back Red**Disney**$19.98**0 rev7mo ago](https://www.amazon.com/dp/B0G2YTCDWR) [**Croknit 5 Pcs Halloween Old Uncle Costume Accessories Red Fez Hat Gray Beard Eyebrow Stickers Glasses Long Bow Tie for Man Halloween Party Cosplay Dress up**Croknit**$15.11**0 rev10mo ago](https://www.amazon.com/dp/B0FP4W4TLW) [**HLENOK Adult Men Grunkle Stan Costume 7 in 1 Halloween Cosplay Shirt Jacket Blazer Pants Hat Fake Ears Mustache Eyebrow Tie Outfit (X-Large)**HLENOK**$64.70**1 rev1y ago](https://www.amazon.com/dp/B0F1SHS632)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Disney Gravity Falls Grunkle Stan Fez Logo Disney Channel Adjustable Printed Baseball Hat Red**Disney**$19.73**0.0★**▲ 416%**](https://www.amazon.com/dp/B0G2YRZQ3C) [**Rainbow Star Pink Pines Cartoon Cosplay Sweater Full Knitted Halloween Costume**Costume Agent**$42.96**4.8★**▲ 367%**](https://www.amazon.com/dp/B0C9G96PN7) [**Adventure Time Mens Finn Character Hat White One Size**Adventure Time**$19.11**4.5★**▲ 346%**](https://www.amazon.com/dp/B005H3BT46) [**Disney Gravity Falls Grunkle Stan Fez Logo Disney Channel Trucker Hat with Adjustable Mesh Back Red**Disney**$20.98**0.0★**▲ 270%**](https://www.amazon.com/dp/B0G2YVD4QG) [**EIKOU Gravity Falls Meshback Hat Blue Dippers Hat Pine Embroidered Baseball Cap with Mystery Pendant Adjustable Costume Hat for Teens and Adults Halloween Party**EIKOU**$16.90**4.5★**▲ 242%**](https://www.amazon.com/dp/B094NHVBT8)
**~~View all trending →~~**
## **What reviews say buyers love and hate about grunkle stan**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Comfort-Overall**25%
*“Super comfy, nice and cozy, lots of compliments about it's authenticity”*
**Value For Money**17%
*“Inexpensive”*
**Advertised Vs Actual Product**17%
*“Tal como lo esperaba”*
**Soft Feel**17%
*“Super soft, proper attachments, and matching ears”*
**Quality-Overall**8%
*“Good quality”*
**Material Quality**8%
*“Very nice material”*
### **What buyers complain about **
**Strength**33%
*“Hat is very flimsy”*
**Size-Overall**33%
*“FYI- Runs a bit big”*
**Material Quality**17%
*“The fabric is a little delicate”*
### **Top return reasons **
**Size-Overall**72%
**Shape/Style**8%
**Advertised Vs Actual Product**4%
**Quality-Overall**4%
**Length**3%
**Functionality-Overall**3%
**Wrinkles**2%
**Smell**1%
**Design-Overall**1%
**Stitch/Finish/Polish**1%
## **Common grunkle stan questions**
- **Is grunkle stan profitable to sell on Amazon United States?**
- The niche generates $4K/yr across 17 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is +21.4%. Flapen's verdict: Skip it (37/100).
- **How competitive is the grunkle stan niche?**
- 13 brands and 22 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 76% of demand.
- **What do buyers complain about in grunkle stan?**
- Top complaints mined from reviews: Strength, Size-Overall, Material Quality. The return rate is 5.6% — above our launch gate.
- **When does demand for grunkle stan peak?**
- Demand peaks in Sep–Oct–Nov; the busiest month runs 14.5× the quietest.
- **What does it cost to enter the grunkle stan niche?**
- Listings span $8.30–$64.70; the average listing price is $21.67 (sweet spot $15–$100). The average incumbent carries 370 reviews — the moat a new listing must climb.
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