half circle window shade
Worth a lookShows a sweet-spot price point ($25.08 avg), but weak search conversion (1.2%) keeps it on the watch list.
Avg price
Incredible$25.08avg listing price — sweet spot $15–$100
Price range
Great$13.16–$39.00cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Review moat
Good683.93avg incumbent reviews — the moat a new listing must climb
Growth
Good+46.3%90-day search growth — must beat 0% to launch
Competition
Good49%top-5 click share — leaders hold, buyers still browse
Brand share
Okay84%top-5 brand share — brands hold most of the demand
Market size
Okay$101K$101K/yr · 339K searches
Returns
Bad6.1%return rate — above 5% kills the launch gate
Conversion
Bad1.2%search→purchase rate — share of searches ending in a sale
According to Flapen's Amazon United States niche tracking, half circle window shade is a $101K/yr Amazon United States market (339K searches/yr). The top 5 brands hold 84% of demand. Demand peaks in Jun–Jul. Verdict: Worth a look — 50/100.
Data updated Aug 3, 2026 · scored weekly · How we score niches
half circle window shade market data
- Units sold / yr
- 4K–5K
- avg 100–250/product
- Revenue / yr
- $100K–$125K
- units × avg price
- Conversion rate
- 1.2%
- Avg BSR
- #51
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 93%
- Out of stock
- 13.9%
- Avg brand age
- 43 months
- Avg seller age
- 196 days
Competition & brand share
The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.Brands
13 falling
Sellers
19
Top-5 brand share
84%
Top 20: 100%
Top-5 click share
49%
Top 20: 94%
Open market
12%
- MYshade45%
- Changshade15%
- Maritown13%
- Sulugood6%
- Jlong4%
- Touri4%
- Open — no brand owns it (7 brands, 12%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +46.3% search growth over the last 90 days.Peak months: Jun, Jul · busiest ÷ quietest = 2.0×
Top half circle window shade search terms
- arch window shade59K/yr
- half circle window shade52K/yr
- half moon window shade45K/yr
- arch window shade blackout29K/yr
- arched window shade23K/yr
- half moon window shade blackout13K/yr
- arch window shades half circle12K/yr
- half circle window shade blackout10K/yr
- round window shade11K/yr
- semi circle window shade10K/yr
Top half circle window shade 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
Myshade Arch Window Shades Half Circle Blackout Cellular Shades Cordless No Drill Blinds for Windows Half Moon Honeycomb Fabric No Tools Room Darkening Shades Easy Install (1PCS White 72 W X 36 H)
MYshade$34.434.3★431 rev
Myshade Arch Window Shades Half Circle Blackout Cellular Shades Cordless No Drill Blinds for Windows Half Moon Honeycomb Fabric No Tools Room Darkening Shades Easy Install (1PCS White 24 W X 12 H)
MYshade$15.054.3★431 rev
Arch Window Shade Blackout Cellular Shades Half Moon Circle No Drill Blinds
Maritown$17.744.1★272 rev
Changshade Arch Window Shades Blackout Half Moon(Radius: 24) Blackout Pleated Window Shades Half Circle No Drill Cellular Shades for Windows Easy Cut and Install
Changshade$28.654.4★251 rev
Myshade Arch Window Shades Half Circle Blackout Cellular Shades Cordless No Drill Blinds for Windows Half Moon Honeycomb Fabric No Tools Room Darkening Shades Easy Install (1PCS Black 24 W X 12 H)
MYshade$15.274.1★178 rev
Newest
by launch date
HOMEDEMO Arch Window Shade Blackout No Drill Black48 X 24
HOMEDEMO$25.105 rev
Myshade Arch Window Shades Half Circle Blackout Cellular Shades Cordless No Drill Blinds for Windows Half Moon Honeycomb Fabric No Tools Room Darkening Shades Easy Install (1PCS White 24 W X 12 H)
MYshade$15.05431 rev
Myshade Arch Window Shades Half Circle Blackout Cellular Shades Cordless No Drill Blinds for Windows Half Moon Honeycomb Fabric No Tools Room Darkening Shades Easy Install (1PCS Black 24 W X 12 H)
MYshade$15.27178 rev
Myshade Arch Window Shades Half Circle Blackout Cellular Shades Cordless No Drill Blinds for Windows Half Moon Honeycomb Fabric No Tools Room Darkening Shades Easy Install (1PCS White 36 W X 18 H)
MYshade$17.77431 rev
Myshade Arch Window Shades Half Circle Light Filtering Cellular Shades Cordless No Drill Blinds for Windows Half Moon Honeycomb Fabric No Tools Shades Easy Install (1PCS White 24 W X 12 H)
MYshade$14.9888 rev
Trending
90-day click momentum
HESTIA No-Drill Arch Window Cellular Shades for Bedroom Grey 24L x 48W
HESTIA$35.704.4★
Sulugood Arch Window Shades Blackout Half Circle Cordless Cellular Shades No Drill Half Moon Honeycomb Blinds for Indoor Window Thermal Insulation Noise Reduction Blackout-White 48 W x 24 H
Sulugood$35.334.2★
HOMEDEMO Arch Window Shade Blackout No Drill Black48 X 24
HOMEDEMO$25.104.8★
Myshade Arch Window Shades Half Circle Blackout Cellular Shades Cordless No Drill Blinds for Windows Half Moon Honeycomb Fabric No Tools Room Darkening Shades Easy Install (2PCS Black 24 W X 12 H)
MYshade$17.784.1★
Myshade Arch Window Shades Half Circle Blackout Cellular Shades Cordless No Drill Blinds for Windows Half Moon Honeycomb Fabric No Tools Room Darkening Shades Easy Install (1PCS White 24 W X 12 H)
MYshade$15.054.3★
What buyers say about half circle window shade
What buyers praise and complain about, mined from review topics.What buyers love
“Easy assembly and looks great”
“Excellent product”
“Fit good”
“Exactly what I needed”
“Worth the Money”
“Efficient”
“It filtered light nicely”
“Superb design”
“Effective”
“The material is very good”
What buyers complain about
“that has failed to adhere”
“A little tricky to install”
“Basically a waste of my money x 3”
“Its definitely lower quality”
“lacks detail instructions”
“a little flimsy”
“Poor adhesive design”
“Didnt really work you get what you paid for”
“Did not even fit as described”
“Color is not what we expected”
Top return reasons
Common questions
- Is half circle window shade profitable to sell on Amazon United States?
- The niche generates $101K/yr across 27 tracked products. 1 of 8 products launched in the last 360 days are still selling. 90-day search growth is +46.3%. Flapen's verdict: Worth a look (50/100).
- How competitive is the half circle window shade niche?
- 13 brands and 19 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 84% of demand.
- What do buyers complain about in half circle window shade?
- Top complaints mined from reviews: Adhesion/Stickiness, Assembly/Installation, Value For Money. The return rate is 6.1% — above our launch gate.
- When does demand for half circle window shade peak?
- Demand peaks in Jun–Jul; the busiest month runs 2.0× the quietest.
- What does it cost to enter the half circle window shade niche?
- Listings span $13.16–$39.00; the average listing price is $25.08 (sweet spot $15–$100). The average incumbent carries 684 reviews — the moat a new listing must climb.