---
title: "Girls Halloween Costume 11-12 — £0/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/toys-games/girls-halloween-costume-11-12"
last_updated: "2026-07-31T14:26:37.632Z"
locale: en
meta:
description: "Niche score 25/100 · £0/yr market · 238K searches/yr · £14.67 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 25/100 · £0/yr market · 238K searches/yr · £14.67 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Girls Halloween Costume 11-12 — £0/yr Amazon UK Niche (2026) - Flapen"
---
# **girls halloween costume 11-12**
**Skip it**
A small market ($0/yr) — this niche doesn't clear our bar today.
Market size 0Growth 58Conversion 0Competition 0Returns 7Price range 33Avg price 72Brand share 0Review moat 64Quality gap 75
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Good****£14.67**
avg listing price — sweet spot $15–$100
**Review moat**
**Good****955.67**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Good****+32.3%**
90-day search growth — must beat 0% to launch
**Price range**
**Okay****£11.07–£16.97**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Bad****10.0%**
return rate — above 5% kills the launch gate
**Market size**
**Bad****£0**
£0/yr · 238K searches
**Conversion**
**Bad****0.0%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Bad****100%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** High Returns**](https://flapen.com/research/niches?market=uk&signal=high_returns "Return rate > 5%")
According to Flapen's Amazon United Kingdom niche tracking, girls halloween costume 11-12 is a £0/yr Amazon United Kingdom market (238K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 25/100.
Data updated Jul 29, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **girls halloween costume 11-12 market data**
- **Units sold / yr**
- **1K–2K**
- avg 0–100/product
- **Revenue / yr**
- **£18K–£22K**
- units × avg price
- **Conversion rate**
- **0.0%**
- **Avg BSR**
- **#1,194**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **33%**
- **Out of stock**
- **20.1%**
- **Avg brand age**
- **36 months**
- **Avg seller age**
- **198 days**
## **Competition & brand share**
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**2 **▲rising
**Sellers**
**8**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**100%**
Top 20: 100%
**Open market**
**0%**
- amscan65% - Berich35%
## **Demand**
Weekly Amazon search volume, last 57 weeks — +32.3% search growth over the last 90 days.
100K60KSpike '24Spike '25Aug '24Oct '24Dec '24Jul '25Sep '25Nov '25
[**Open Trend **](https://flapen.com/research/uk/toys-games/girls-halloween-costume-11-12/trend)
## **Top girls halloween costume 11-12 search terms**
- **girls halloween costume 4-5**20K/yr+555.6%0.0% conv. - **halloween costumes for girls 12-13**11K/yr+40.0%0.0% conv. - **halloween costumes teen girls**17K/yr+224.6%0.0% conv. - **halloween costumes for teen girls**6K/yr+43.3%0.0% conv. - **teen girls halloween costume**7K/yr+300.0%0.0% conv. - **halloween costume teen girl**6K/yr+40.5%0.0% conv. - **girls halloween costume 5-6**30K/yr+35.1%0.0% conv. - **teen girl halloween costumes**12K/yr-24.5%0.0% conv. - **girls halloween costume 8-9**6K/yr+266.7%0.0% conv. - **halloween costumes for girls 13-14**7K/yr-38.5%0.0% conv. [**All search terms **](https://flapen.com/research/uk/toys-games/girls-halloween-costume-11-12/search-terms)
## **Top girls halloween costume 11-12 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.
0%10%£020%£030%£040%£0101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 3 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Berich Girls Polka Dot Dress Princess Costumes for Girls 4-5 Years Rose 120**Berich**£11.07**4.2★71 rev](https://www.amazon.co.uk/dp/B0F4XHFX21) [2**amscan 9905066 Childs Iridescent Spider Web Girl Fancy Dress Halloween Costume Age 4-6 Years**amscan**£16.97**4.3★1,712 rev](https://www.amazon.co.uk/dp/B07Y3YTRD1) [3**Amscan 9904756 - Teen Girls Halloween Dark Doll Fancy Dress Costume Age: 12-14 Yrs**amscan**£15.97**4.4★1,084 rev](https://www.amazon.co.uk/dp/B07WSXNP85)
### **Newest**
by launch date
[**Berich Girls Polka Dot Dress Princess Costumes for Girls 4-5 Years Rose 120**Berich**£11.07**71 rev1y ago](https://www.amazon.co.uk/dp/B0F4XHFX21) [**amscan 9905066 Childs Iridescent Spider Web Girl Fancy Dress Halloween Costume Age 4-6 Years**amscan**£16.97**1,712 rev6y ago](https://www.amazon.co.uk/dp/B07Y3YTRD1) [**Amscan 9904756 - Teen Girls Halloween Dark Doll Fancy Dress Costume Age: 12-14 Yrs**amscan**£15.97**1,084 rev6y ago](https://www.amazon.co.uk/dp/B07WSXNP85)
### **Trending**
90-day click momentum
[**Berich Girls Polka Dot Dress Princess Costumes for Girls 4-5 Years Rose 120**Berich**£11.07**4.2★**▲ 1000%**](https://www.amazon.co.uk/dp/B0F4XHFX21) [**Amscan 9904756 - Teen Girls Halloween Dark Doll Fancy Dress Costume Age: 12-14 Yrs**amscan**£15.97**4.4★**▲ 40%**](https://www.amazon.co.uk/dp/B07WSXNP85) [**amscan 9905066 Childs Iridescent Spider Web Girl Fancy Dress Halloween Costume Age 4-6 Years**amscan**£16.97**4.3★**▼ 57%**](https://www.amazon.co.uk/dp/B07Y3YTRD1)
## **What buyers say about girls halloween costume 11-12**
What buyers praise and complain about, mined from review topics.
### **Top return reasons **
**Size-Overall**100%
## **Common questions**
- **Is girls halloween costume 11-12 profitable to sell on Amazon United Kingdom?**
- The niche generates £0/yr across 3 tracked products. 90-day search growth is +32.3%. Flapen's verdict: Skip it (25/100).
- **How competitive is the girls halloween costume 11-12 niche?**
- 2 brands and 8 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- **What does it cost to enter the girls halloween costume 11-12 niche?**
- Listings span £11.07–£16.97; the average listing price is £14.67 (sweet spot $15–$100). The average incumbent carries 956 reviews — the moat a new listing must climb.
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