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big bang theory

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 11Growth 6Conversion 1Competition 19Returns 75Price range 95Avg price 95Brand share 0Review moat 64Quality gap 19

Avg price

Incredible€22.97

avg listing price — sweet spot $15–$100

Price range

Incredible€16.72–€40.62

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

Returns

Great2.0%

return rate — above 5% kills the launch gate

Review moat

Good960

avg incumbent reviews — the moat a new listing must climb

Competition

Bad77%

top-5 click share — a locked-up shelf

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Market size

Bad€44K

€44K/yr · 1.9M searches

Growth

Bad-37.0%

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

Conversion

Bad0.1%

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

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon Germany niche tracking, big bang theory is a €44K/yr Amazon Germany market (1.9M searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 28/100.

Data updated Jul 12, 2026 · scored weekly · How we score niches

big bang theory market data

Units sold / yr
1K–1K
avg 0–100/product
Revenue / yr
€23K–€29K
units × avg price
Conversion rate
0.1%
Avg BSR
#67,334
Page quality
0%
Prime
43%
Sponsored
93%
Out of stock
11.1%
Avg brand age
81 months
Avg seller age
200 days

Competition & brand share

The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.

Brands

5 falling

Sellers

36

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

77%

Top 20: 100%

Open market

0%

  • Logoshirt89%
  • Winning Moves3%
  • BRIKSMAX3%
  • HWC Trading2%
  • Funko2%

Demand

Weekly Amazon search volume, last 29 weeks — -37.0% search growth over the last 90 days.
175K125KSpike '26Dec '25Jan '26Feb '26Mar '26Apr '26May '26Jun '26

Top big bang theory search terms

  • big bang theory1.2M/yr
  • the big bang theory587K/yr
  • big bang72K/yr
  • the big bang21K/yr
All search terms

Top big bang theory 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%€4K20%€9K30%€13K40%€18K101001K10K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 14 tracked products in this niche — three views at once, no toggling.

What buyers say about big bang theory

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

Top return reasons

Rahmenqualität33%
Gesamtgröße33%
Montage/Installation17%
Mechanismus probleme17%

Common questions

Is big bang theory profitable to sell on Amazon Germany?
The niche generates €44K/yr across 14 tracked products. 90-day search growth is -37.0%. Flapen's verdict: Skip it (28/100).
How competitive is the big bang theory niche?
5 brands and 36 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 100% of demand.
What does it cost to enter the big bang theory niche?
Listings span €16.72–€40.62; the average listing price is €22.97 (sweet spot $15–$100). The average incumbent carries 960 reviews — the moat a new listing must climb.