Is harry potter costume profitable to sell on Amazon United Kingdom?

The niche generates £180K/yr across 48 tracked products. 0 of 10 products launched in the last 360 days are still selling. 90-day search growth is -93.4%. Flapen's verdict: Skip it (49/100).

How competitive is the harry potter costume niche?

21 brands and 62 sellers compete. The top 5 products take 36% of clicks and top 5 brands hold 54% of demand.

What do buyers complain about in harry potter costume?

Top complaints mined from reviews: Quality-Overall, Size-Overall, Advertised Vs Actual Product. The return rate is 2.8%.

When does demand for harry potter costume peak?

Demand peaks in Mar–Oct; the busiest month runs 34.7× the quietest.

What does it cost to enter the harry potter costume niche?

Listings span £5.22–£41.23; the average listing price is £16.26 (sweet spot $15–$100). The average incumbent carries 665 reviews — the moat a new listing must climb.

harry potter costume

Skip it

Soft demand (-93.4% this quarter) — this niche doesn't clear our bar today.

Brand share

Great54%

top-5 brand share — no brand owns this niche

Competition

Great36%

top-5 click share — an open shelf

Avg price

Great£16.26

avg listing price — sweet spot $15–$100

Price range

Good£5.22–£41.23

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

Review moat

Good665.33

avg incumbent reviews — the moat a new listing must climb

Returns

Good2.8%

return rate — above 5% kills the launch gate

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Okay£180K

£180K/yr · 574K searches

Conversion

Bad1.9%

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

Growth

Bad-93.4%

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

According to Flapen's Amazon United Kingdom niche tracking, harry potter costume is a £180K/yr Amazon United Kingdom market (574K searches/yr). The top 5 brands hold 54% of demand. Demand peaks in Mar–Oct. Verdict: Skip it — 49/100.

Data updated Jul 29, 2026 · scored weekly · How we score niches

harry potter costume market data

Units sold / yr: 13K–15K; avg 250–500/product
Revenue / yr: £203K–£244K; units × avg price
Conversion rate: 1.9%
Avg BSR: #905
Page quality: 0%
Prime: 94%
Sponsored: 69%
Out of stock: 8.3%
Avg brand age: 46 months
Avg seller age: 180 days

Competition & brand share

Clicks spread well past the top 5 (36% combined) — an open shelf where new products get seen.

Brands

21 rising

Sellers

Top-5 brand share

54%

Top 20: 100%

Top-5 click share

36%

Top 20: 78%

Open market

39%

Rubies22%
amscan10%
DABAOOU8%
Sekepingo7%
AUYAO7%
Mineup6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -93.4% search growth over the last 90 days.

Peak months: Mar, Oct · busiest ÷ quietest = 34.7×

Open Trend

Top harry potter costume search terms

harry potter costume300K/yr -95.8%1.7% conv.
harry potter costume kids114K/yr -95.5%2.3% conv.
harry potter cloak18K/yr -73.3%1.1% conv.
harry potter robe15K/yr -68.9%0.4% conv.
harry potter outfit13K/yr -62.1%3.8% conv.
harry potter dress up12K/yr -67.1%2.1% conv.
gryffindor robe16K/yr -87.5%0.7% conv.
harry potter cape9K/yr -80.0%2.3% conv.
harry potter fancy dress6K/yr -63.7%1.4% conv.
harry potter costumes8K/yr -79.8%0.6% conv.

All search terms

Top harry potter 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★)

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

Top sellers

by 90-day click share

amscan 9911797 Childs Harry Potter Wizard Kit Fancy Dress Book Week Halloween Costume Outfit (Age 10-12 years)

amscan£11.624.6★1,099 rev

DABAOOU 7pcs Wizard Costume Accessories Set Halloween Fancy Dress Outfit

DABAOOU£11.744.7★26 rev

Rubies Official Harry Potter Gryffindor Classic Robe Costume Childs Size Large Age 7-8 Years Halloween

Rubies£12.644.4★2,790 rev

Mineup 7 PCS Wizard Costume Set - Magic Robe Wand Scarf Glasses Tattoo Sticker Tie Hat - Accessories for Kids Halloween

Mineup£19.774.8★16 rev

Harry Potter Deluxe Robe Large 7-8 years Multi-colored

Rubies£9.994.6★2,823 rev

Newest

by launch date

UAVAUI Wizard Costume Set 8 PCS Wizard Robe with Magic Hat Stickers Necklace Spectacles Magic Wand and Scarf Halloween Costume Set for School Activities Party World Book Day Role-Playing

UAVAUI£10.349 rev

7mo ago

DABAOOU 7pcs Wizard Costume Accessories Set Halloween Fancy Dress Outfit

DABAOOU£11.7426 rev

8mo ago

Wizard Costume Accessories 8 Pcs Cosplay Accessories Set with Magic Cloak Magic Wand Hat Scarf Tie Necklace Glasses Tattoo Sticker Fancy Dress Set for Kids and Adult Halloween Party World Book Day

Wieerda£10.8911 rev

8mo ago

Harry Potter Gryffindor Unisex Black Hooded Bathrobe | Cosy Fleece Long Sleeve Loungewear for Relaxation | Movie House Merch Merch - Medium

Harry Potter£28.4610 rev

10mo ago

8PCS Wizard Cape Costume Accessories Set Fancy Dress Up Wizard Theme(125cm)

Sekepingo£11.7122 rev

11mo ago

What buyers say about harry potter costume

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

What buyers love

Quality-Overall31%

“Amazing quality”

Value For Money20%

“good value for what it was intended for”

Size-Overall14%

“size is good”

Advertised Vs Actual Product7%

“complete the look”

Material Quality4%

“Polyester as expected”

Gifting Purpose4%

“Good present for kids”

Design-Overall3%

“The colours and overall design look fantastic and really bring the whole costume together”

Correct Contents2%

“Amazing costume, all items arrived as described and looked brilliant for a fancy dress party”

Fun/Entertainment Experience2%

“£10.99, voucher £10.44 at time of review, makes this a full of fun costume for a teen upwards”

Color1%

“The colours are bright and bold, and they feel ok for basic costume props”

What buyers complain about

Quality-Overall21%

“Cheap looking”

Size-Overall12%

“It is very, very long”

Advertised Vs Actual Product7%

“picture is misleading - accessories not included”

Stitch/Finish/Polish4%

“Very disappointed with the stitching”

Ease Of Cleaning4%

“once applied they need a good scrub to remove”

Stretchability/Expandability/Elasticity4%

“No stretch to jacket so better to size up”

Portability4%

“you cant wear a bag over it”

Thickness4%

“Very thin material”

Durability3%

“Broke after single use”

Adhesion/Stickiness2%

“Just that the stickers did not stick to the skin”

Top return reasons

Size-Overall68%

Quality-Overall13%

Material Quality4%

Advertised Vs Actual Product2%

Value For Money2%

Defective Material/Parts1%

Thin1%

Functionality-Overall1%

Touch/Button Controls1%

Product Condition1%

Common questions

Is harry potter costume profitable to sell on Amazon United Kingdom?: The niche generates £180K/yr across 48 tracked products. 0 of 10 products launched in the last 360 days are still selling. 90-day search growth is -93.4%. Flapen's verdict: Skip it (49/100).
How competitive is the harry potter costume niche?: 21 brands and 62 sellers compete. The top 5 products take 36% of clicks and top 5 brands hold 54% of demand.
What do buyers complain about in harry potter costume?: Top complaints mined from reviews: Quality-Overall, Size-Overall, Advertised Vs Actual Product. The return rate is 2.8%.
When does demand for harry potter costume peak?: Demand peaks in Mar–Oct; the busiest month runs 34.7× the quietest.
What does it cost to enter the harry potter costume niche?: Listings span £5.22–£41.23; the average listing price is £16.26 (sweet spot $15–$100). The average incumbent carries 665 reviews — the moat a new listing must climb.