baby shark birthday decorations
Worth a lookShows a fragmented shelf (top 5 take 26% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Competition
Great26%top-5 click share — an open shelf
Avg price
Great$18.05avg listing price — sweet spot $15–$100
Review moat
Great494.11avg incumbent reviews — the moat a new listing must climb
Returns
Good2.1%return rate — above 5% kills the launch gate
Price range
Good$5.85–$35.94cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Good$457K$457K/yr · 927K searches
Brand share
Okay78%top-5 brand share — brands hold most of the demand
Growth
Okay+11.2%90-day search growth — must beat 0% to launch
Conversion
Okay2.7%search→purchase rate — share of searches ending in a sale
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, baby shark birthday decorations is a $457K/yr Amazon United States market (927K searches/yr). The top 5 brands hold 78% of demand. Demand peaks in Aug. Verdict: Worth a look — 57/100.
Data updated Jul 23, 2026 · scored weekly · How we score niches
baby shark birthday decorations market data
- Units sold / yr
- 20K–25K
- avg 100–250/product
- Revenue / yr
- $361K–$451K
- units × avg price
- Conversion rate
- 2.7%
- Avg BSR
- #1,746
- Page quality
- 0%
- Prime
- 96%
- Sponsored
- 93%
- Out of stock
- 4.7%
- Avg brand age
- 30 months
- Avg seller age
- 161 days
Competition & brand share
Clicks spread well past the top 5 (26% combined) — an open shelf where new products get seen.Brands
19 falling
Sellers
52
Top-5 brand share
78%
Top 20: 100%
Top-5 click share
26%
Top 20: 57%
Open market
18%
- PartyWoo26%
- Tstars25%
- Unique13%
- Generic7%
- Luke and Lulu6%
- Seyal4%
- Open — no brand owns it (13 brands, 18%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +11.2% search growth over the last 90 days.Peak months: Aug · busiest ÷ quietest = 2.3×
Top baby shark birthday decorations search terms
- baby shark birthday decorations481K/yr
- baby shark birthday52K/yr
- baby shark balloons67K/yr
- baby shark party decorations50K/yr
- baby shark decorations39K/yr
- bebefinn birthday decorations32K/yr
- baby shark birthday decorations girl35K/yr
- baby shark party23K/yr
- baby shark pinata20K/yr
- pinkfong birthday decorations22K/yr
Top baby shark birthday decorations 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
3rd Birthday Baby Shark Shirt - 3 Year Old Outfit for Toddler Boy or Girl - Kids Party T-Shirt 4T Light Pink
Tstars$17.444.8★670 rev
Baby Shark Birthday Decorations Set | Baby Shark Party Supplies | For Boys and Girls | With Banner Tablecloth Table Cover Dinner Plates Cake Plates Cups Napkins Sticker | Serves 16 Guests
Unique$32.794.8★674 rev
3rd Birthday Baby Shark Shirt - 3 Year Old Outfit for Toddler Boy or Girl - Kids Party T-Shirt 3T Light Pink
Tstars$17.544.8★670 rev
PartyWoo Baby Shark Family Foil Balloons 37pcs Baby Shark Family Pink Round Star Mylar Happy Birthday Letter Balloons for Boys and Girls Under the Sea Kids Birthday Party Decorations
PartyWoo$28.494.6★86 rev
Baby Shark Birthday Decorations | Baby Shark Party Decorations | Serves 16 | Banner Tablecloth Plates Napkins Sticker | Officially Licensed
Unique$21.964.5★48 rev
Newest
by launch date
Shark Birthday Decorations Balloon Kit 52 PCS Shark Balloons XL 26 with Happy Birthday Banner Star Foil Balloons and Latex Balloons for Kids Ocean Theme Birthday Party Supplies
KROSCA$23.5258 rev
PartyWoo Baby Shark Family Foil Balloons 37pcs Baby Shark Family Blue Round Star Mylar Happy Birthday Letter Balloons for Boys and Girls Under the Sea Kids Birthday Party Decorations
PartyWoo$23.7286 rev
PartyWoo Baby Shark Family Foil Balloons 37pcs Baby Shark Family Pink Round Star Mylar Happy Birthday Letter Balloons for Boys and Girls Under the Sea Kids Birthday Party Decorations
PartyWoo$28.4986 rev
PartyWoo Baby Shark Pink Foil Number 1 Balloon 5pcs 40 18 Inch Pink Round Star Mylar Helium Birthday Balloons for Boys and Girls Baby Shark Under the Sea Ocean Kids First Birthday Party Decorations
PartyWoo$10.0761 rev
PartyWoo Baby Shark Pink Foil Number 3 Balloon 40 Inch Pink Mylar Helium Birthday Number Balloons for Girls and Boys Baby Shark Under the Sea Ocean Theme Kids Third Birthday Party Decorations
PartyWoo$8.9587 rev
Trending
90-day click momentumShark Birthday Decorations Balloon Kit 52 PCS Shark Balloons XL 26 with Happy Birthday Banner Star Foil Balloons and Latex Balloons for Kids Ocean Theme Birthday Party Supplies
KROSCA$23.524.4★
3rd Birthday Baby Shark Shirt - 3 Year Old Outfit for Toddler Boy or Girl - Kids Party T-Shirt 4T Light Pink
Tstars$17.444.8★
Luke and Lulu Birthday Outfit Girl Shark Design - 2nd Birthday Girl
Luke and Lulu$30.634.7★
Generic Shark Balloons Vary ll (Multicolor Shark II)
Generic$28.774.6★
3rd Birthday Baby Shark Shirt - 3 Year Old Outfit for Toddler Boy or Girl - Kids Party T-Shirt 3T Light Pink
Tstars$17.544.8★
What buyers say about baby shark birthday decorations
What buyers praise and complain about, mined from review topics.What buyers love
“Quality & Ease of Use”
“Cute colors”
“Great size”
“Fun for kids”
“Just like in the picture”
“Good value”
“dont break either”
“Great design”
“Easy to inflate”
“easy to hang”
What buyers complain about
“It breaks very easily”
“Bad quality”
“Balloons were much bigger than I thought”
“they wouldnt stick to the sticks that came with them”
“Honestly not worth it for the price”
“Not as dense as I wanted them to be”
“not sturdy”
“A toxic smell”
“Very cheap material”
“it just kept deflating”
Top return reasons
Common questions
- Is baby shark birthday decorations profitable to sell on Amazon United States?
- The niche generates $457K/yr across 73 tracked products. 12 of 34 products launched in the last 360 days are still selling. 90-day search growth is +11.2%. Flapen's verdict: Worth a look (57/100).
- How competitive is the baby shark birthday decorations niche?
- 19 brands and 52 sellers compete. The top 5 products take 26% of clicks and top 5 brands hold 78% of demand.
- What do buyers complain about in baby shark birthday decorations?
- Top complaints mined from reviews: Durability, Quality-Overall, Size-Overall. The return rate is 2.1%.
- When does demand for baby shark birthday decorations peak?
- Demand peaks in Aug; the busiest month runs 2.3× the quietest.
- What does it cost to enter the baby shark birthday decorations niche?
- Listings span $5.85–$35.94; the average listing price is $18.05 (sweet spot $15–$100). The average incumbent carries 494 reviews — the moat a new listing must climb.