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girls ghost costume

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A small market ($19K/yr) — this niche doesn't clear our bar today.

Market size 5Growth 80Conversion 11Competition 54Returns 18Price range 69Avg price 85Brand share 59Review moat 81Quality gap 25

Avg price

Great$19.09

avg listing price — sweet spot $15–$100

Review moat

Great385

avg incumbent reviews — the moat a new listing must climb

Growth

Great+72.2%

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

Price range

Good$4.38–$38.13

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

Brand share

Good69%

top-5 brand share — brands hold most of the demand

Competition

Good53%

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

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Returns

Bad7.8%

return rate — above 6% kills the launch gate

Conversion

Bad0.9%

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

Market size

Bad$19K

$19K/yr · 117K searches

Competition

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

Brands

14 rising

Sellers

28

Top-5 brand share

69%

Open market

24%

  • Coyciu22%
  • Mokoggiri18%
  • Rarjuiey12%
  • Oskiner9%
  • Fun Costumes7%
  • Marvel7%

Product shelf

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

0%5%$95810%$2K15%$3K20%$4K1101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 20 tracked products in this niche — three views at once, no toggling.

Demand

Weekly Amazon search volume, last 32 weeks — +72.2% search growth over the last 90 days.
9K7KSpike '26Nov '25Dec '25Jan '26Mar '26Apr '26May '26

Reviews

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

What buyers love

Size-Overall21%

“The fit is good”

Advertised Vs Actual Product14%

“Looks just as pictured”

Soft Feel8%

“Really soft and cute”

Quality-Overall7%

“Seems to be well made”

Warmth5%

“I can definitely see this being worn in both warm and cold weather”

Washability5%

“But cute and holds up well being washed”

Thickness4%

“Surprisingly thick yet soft”

Comfort-Overall4%

“its so comfortable she doesnt want to ever take it off”

Color3%

“Otherwise, the colors are great”

Weight Light3%

“Its not too heavy not too light”

What buyers complain about

Size-Overall17%

“Size it up”

Shrinkage Resistance8%

“Size up is my suggestion it does shrink when washing”

Pockets/Compartments5%

“The only downfall is it has no pockets on the pants or the sweater”

Quality-Overall5%

“the quality is not so great”

Top return reasons

Size-Overall60%
Length10%
Material Quality10%
Product Condition4%
Thin4%
Waist Fit3%
Sleeve Fit2%
Quality-Overall2%
Arm Fit2%
Defective Material/Parts2%