Is gru costume profitable to sell on Amazon United Kingdom?

The niche generates £73K/yr across 25 tracked products. 0 of 13 products launched in the last 360 days are still selling. 90-day search growth is -63.9%. Flapen's verdict: Worth a look (52/100).

How competitive is the gru costume niche?

21 brands and 32 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 59% of demand.

What do buyers complain about in gru costume?

Top complaints mined from reviews: Quality-Overall, Size-Overall, Comfort-Overall. The return rate is 2.1%.

When does demand for gru costume peak?

Demand peaks in Oct–Nov; the busiest month runs 31.5× the quietest.

What does it cost to enter the gru costume niche?

Listings span £6.40–£32.11; the average listing price is £13.31 (sweet spot $15–$100). The average incumbent carries 25 reviews — the moat a new listing must climb.

gru costume

Worth a look

Shows a thin review moat (25 avg reviews), but soft demand (-63.9% this quarter) keeps it on the watch list.

Review moat

Incredible25.44

avg incumbent reviews — the moat a new listing must climb

Quality gap

Incredible3.7★

avg incumbent rating — lower means beatable quality

Brand share

Great59%

top-5 brand share — no brand owns this niche

Returns

Good2.1%

return rate — above 5% kills the launch gate

Price range

Good£6.40–£32.11

cheapest to priciest tracked listing — scored on the share inside $15–$100

Avg price

Good£13.31

avg listing price — sweet spot $15–$100

Competition

Good53%

top-5 click share — leaders hold, buyers still browse

Conversion

Good4.3%

search→purchase rate — share of searches ending in a sale

Market size

Bad£73K

£73K/yr · 129K searches

Growth

Bad-63.9%

90-day search growth — must beat 0% to launch

Signals No Dominant Brand Low Review Barrier Quality Gap Out of Stock

According to Flapen's Amazon United Kingdom niche tracking, gru costume is a £73K/yr Amazon United Kingdom market (129K searches/yr). The top 5 brands hold 59% of demand. Demand peaks in Oct–Nov. Verdict: Worth a look — 52/100.

Data updated Jul 23, 2026 · scored weekly · How we score niches

gru costume market data

Units sold / yr: 6K–8K; avg 100–250/product
Revenue / yr: £80K–£106K; units × avg price
Conversion rate: 4.3%
Avg BSR: #3,123
Page quality: 0%
Prime: 76%
Sponsored: 64%
Out of stock: 47.2%
Avg brand age: 34 months
Avg seller age: 197 days

Competition & brand share

The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.

Brands

21 rising

Sellers

Top-5 brand share

59%

Top 20: 99%

Top-5 click share

53%

Top 20: 96%

Open market

33%

I LOVE FANCY DRESS17%
ERECT PEAK12%
GxouQcn11%
iZoeL10%
Uvwxba9%
BFSYRR8%

Demand & seasonality

Weekly Amazon search volume, last 92 weeks — -63.9% search growth over the last 90 days.

Peak months: Oct, Nov · busiest ÷ quietest = 31.5×

Open Trend

Top gru costume search terms

gru costume80K/yr -58.7%4.8% conv.
gru costume adult21K/yr -43.7%5.8% conv.
gru outfit8K/yr -47.3%6.5% conv.
gru mask6K/yr -55.1%0.9% conv.
gru costume kids10K/yr -94.0%4.7% conv.
gru halloween costume4K/yr -7.8%0.0% conv.

All search terms

Top gru costume products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)5 products missing review or click data not plotted

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Adults Despicable Villain Costume Long Black Duster Jacket Elastic Cartoon Nose Black Scarf Bald Cap & Stick-On Eyebrows Movie-Inspired Fancy Dress Costume for Halloween & Parties (Standard)

I LOVE FANCY DRESS£22.034.4★3 rev

ERECT PEAK 4 Piece Set Mens 2025 Halloween Costume Black Gray Scarf Hairnet Headgear Fake Nose Set Party Adult Outfits Cosplay Accessories Grey

ERECT PEAK£8.513.3★3 rev

iZoeL World Book Day Costumes Kids Movie Fancy Dress - Bald Cap Striped Scarf Long Nose Sticker Eyebrows Movie Wbd Book Week Storybook Character for Outfit School Dress-Up & Fancy Dress Parties

iZoeL£11.604.1★151 rev

Uvwxba 4Pcs Bald Cap Cosplay Costume Fancy Dress for Mens Halloween Cartoon Accessories World Book Day Movie (Black Grey Striped Scarf Long Nose)

Uvwxba£6.403.9★9 rev

BFSYRR Bald Cap Gru Costume 5 Pcs Carnival Costume Accessories Include Bald Head Cap Scarf Long Nose Hair Nets Gloves Gru Halloween Costumes for Carnival Fancy Dress Cosplay and Stage Performance

BFSYRR£11.363.6★14 rev

Newest

by launch date

JcunYcb Bald Cap Halloween Costume 3 PCS Adult Bald Caps and Accessories Set with Scarf Bald Cap Long Nose Hair Nets Bald Caps for Cosplay Halloween Party Adult Pretend Play

JcunYcb£13.851 rev

2mo ago

Bald Cap Gru Costume 3 PCS Halloween Costumes Include Bald Caps Gru Scarf and Hair Nets Halloween Costumes Adults for Cosplay Halloween Carnival and Parties Use by Those Aged 15 and Above

KAZGVN£13.320 rev

2mo ago

cadelon 4pcs Complete Bald Costume Set for Adults - Gru Costume with Bald Cap Wig Network Scarf & Gloves for World Book Day Mardi Gras & Party Outfit

cadelon£12.620 rev

4mo ago

GxouQcn Bald Cap Gru Costume 5 Pcs Halloween Costume Accessories Scarf False Scalp Bald Cap Long Nose Hair Nets Sock Adult for Cosplay Halloween Party Pretend Play

GxouQcn£10.640 rev

4mo ago

Adults Despicable Villain Costume Long Black Duster Jacket Elastic Cartoon Nose Black Scarf Bald Cap & Stick-On Eyebrows Movie-Inspired Fancy Dress Costume for Halloween & Parties (Standard)

I LOVE FANCY DRESS£22.033 rev

5mo ago

What buyers say about gru costume

What buyers praise and complain about, mined from review topics.

What buyers love

Size-Overall29%

“It fit well”

Fun/Entertainment Experience14%

“still fun”

Gifting Purpose14%

“A really fun gift for my daughter for World Book Day”

Value For Money14%

“Worth the money”

Quality-Overall14%

“Decent quality and value for money - arrived on time”

Ease Of Use14%

“thats easily done”

What buyers complain about

Quality-Overall35%

“Cheap quality,not worth the price”

Size-Overall22%

“Gloves were huge”

Comfort-Overall12%

“dented on one side which made it uncomfortable to wear kinda ruined the whole purpose”

Wrinkles12%

“wrinkled with the hair net ripping also the nose was solid”

Strap/String Quality10%

“Holes and string are on the wrong side”

Advertised Vs Actual Product3%

“Looks nothing like the pictures”

Thickness3%

“has smudged they are skinny thin brows”

Value For Money2%

“Poor value”

Top return reasons

Size-Overall53%

Quality-Overall23%

Advertised Vs Actual Product3%

Defective Material/Parts3%

Thin3%

Functionality-Overall2%

Product Condition2%

Strength1%

Strap/String Quality1%

Shape/Style1%

Common questions

Is gru costume profitable to sell on Amazon United Kingdom?: The niche generates £73K/yr across 25 tracked products. 0 of 13 products launched in the last 360 days are still selling. 90-day search growth is -63.9%. Flapen's verdict: Worth a look (52/100).
How competitive is the gru costume niche?: 21 brands and 32 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 59% of demand.
What do buyers complain about in gru costume?: Top complaints mined from reviews: Quality-Overall, Size-Overall, Comfort-Overall. The return rate is 2.1%.
When does demand for gru costume peak?: Demand peaks in Oct–Nov; the busiest month runs 31.5× the quietest.
What does it cost to enter the gru costume niche?: Listings span £6.40–£32.11; the average listing price is £13.31 (sweet spot $15–$100). The average incumbent carries 25 reviews — the moat a new listing must climb.