ninja costume for girls
Skip itA small market ($0/yr) — this niche doesn't clear our bar today.
Avg price
Incredible$25.14avg listing price — sweet spot $15–$100
Price range
Great$13.73–$37.92cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great364.48avg incumbent reviews — the moat a new listing must climb
Competition
Good49%top-5 click share — leaders hold, buyers still browse
Brand share
Okay76%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Returns
Bad5.9%return rate — above 5% kills the launch gate
Growth
Bad-20.1%90-day search growth — must beat 0% to launch
Market size
Bad$0$0/yr · 79K searches
Conversion
Bad0.0%search→purchase rate — share of searches ending in a sale
According to Flapen's Amazon United States niche tracking, ninja costume for girls is a $0/yr Amazon United States market (79K searches/yr). The top 5 brands hold 76% of demand. Demand peaks in Sep–Oct. Verdict: Skip it — 36/100.
Data updated Jul 10, 2026 · scored weekly · How we score niches
ninja costume for girls market data
- Units sold / yr
- 750–1K
- avg 0–100/product
- Revenue / yr
- $19K–$25K
- units × avg price
- Conversion rate
- 0.0%
- Avg BSR
- #3,067
- Page quality
- 0%
- Prime
- 86%
- Sponsored
- 55%
- Out of stock
- 31.4%
- Avg brand age
- 51 months
- Avg seller age
- 188 days
Competition & brand share
The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.Brands
14 rising
Sellers
49
Top-5 brand share
76%
Top 20: 100%
Top-5 click share
49%
Top 20: 90%
Open market
19%
- California Costumes32%
- Rubies19%
- TEENAGE MUTANT NINJA12%
- Fun Costumes7%
- Kepblom7%
- Morph5%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -20.1% search growth over the last 90 days.Peak months: Sep, Oct · busiest ÷ quietest = 21.1×
Top ninja costume for girls search terms
- girl ninja costume17K/yr
- girls ninja costume21K/yr
- ninja costume for girls11K/yr
- ninja girl3K/yr
- ninja costume girls8K/yr
- ninja girl costume7K/yr
- pink ninja costume6K/yr
- pink ninja costume for girls4K/yr
- girl ninja costume kids 6-84K/yr
Top ninja costume for girls 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Rubies Childs Pink Crystal Ninja Costume Medium
Rubies$17.754.4★306 rev
California Costumes Ninja Nightfire Childs Medium
California Costumes$32.874.6★162 rev
Teenage Mutant Ninja Turtles Raphael Little Girls Scuba Cosplay Hooded Tulle Tutu Dress Green/Pink 7-8
TEENAGE MUTANT NINJA$24.494.8★51 rev
Fun Costumes Girls Rainbow Ninja Costume - Jumpsuit Dragon Drape Waist Sash & Iridescent Details Small Black
Fun Costumes$37.924.2★44 rev
California Costumes Girls Black Ninja Costume Large
California Costumes$23.534.6★818 rev
Newest
by launch date
California Costumes Girls Ninja-X Widow Strike Size L
California Costumes$37.773 rev
Teenage Mutant Ninja Turtles Raphael Little Girls Scuba Cosplay Hooded Tulle Tutu Dress Green/Pink 7-8
TEENAGE MUTANT NINJA$24.4951 rev
Teenage Mutant Ninja Turtles Raphael Toddler Girls Scuba Cosplay Hooded Tulle Tutu Dress Green/Pink 2T
TEENAGE MUTANT NINJA$24.3451 rev
Bad boy league Girls Ninja Costumes Deluxe Girl Ninja Costume Set for Kids Halloween Role Playing Theme Parties(Kids-XL-10/12T Black)
Bad boy league$21.5423 rev
Onirii 66 Inch Kids Inflatable Punching Bag
Onirii$27.68238 rev
Trending
90-day click momentumTeenage Mutant Ninja Turtles Raphael Little Girls Scuba Cosplay Hooded Tulle Tutu Dress Green/Pink 7-8
TEENAGE MUTANT NINJA$24.494.8★
Kepblom Girls Shiny Metallic Mock Neck Unitard Long Sleeve Zipper Back One Piece Bodysuit Costume
Kepblom$28.234.4★
Teenage Mutant Ninja Turtles Raphael Toddler Girls Scuba Cosplay Hooded Tulle Tutu Dress Green/Pink 2T
TEENAGE MUTANT NINJA$24.344.8★
Youth Ask Me About My Ninja Disguise Flip Halloween Costume Tee Black S
Crazy Dog T-Shirts$13.734.5★
Onirii 66 Inch Kids Inflatable Punching Bag
Onirii$27.684.4★
What buyers say about ninja costume for girls
What buyers praise and complain about, mined from review topics.What buyers love
“Fits perfectly”
“Good quality”
“it's a great value for the price”
“fun”
“Super durable my heavy handed daughter ground”
“Works well”
“So far no leaks thank goodness”
“Nice material”
“Logo done nicely”
“Love the color and the idea,”
What buyers complain about
“It was very tell to big for my kids”
“it has a slow leak upon arrival”
“Junk / worthless”
“the gloves smelled”
“Not as sturdy as it looks”
“Not ideal for long term”
“it wouldnt stay inflated”
“Not as described Junk”
“was missing instructions”
Top return reasons
Common questions
- Is ninja costume for girls profitable to sell on Amazon United States?
- The niche generates $0/yr across 29 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -20.1%. Flapen's verdict: Skip it (36/100).
- How competitive is the ninja costume for girls niche?
- 14 brands and 49 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 76% of demand.
- What do buyers complain about in ninja costume for girls?
- Top complaints mined from reviews: Size-Overall, Leak-Proof, Quality-Overall. The return rate is 5.9% — above our launch gate.
- When does demand for ninja costume for girls peak?
- Demand peaks in Sep–Oct; the busiest month runs 21.1× the quietest.
- What does it cost to enter the ninja costume for girls niche?
- Listings span $13.73–$37.92; the average listing price is $25.14 (sweet spot $15–$100). The average incumbent carries 364 reviews — the moat a new listing must climb.