surströmming
Skip itA concentrated shelf (top 5 take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Avg price
Incredible£30.05avg listing price — sweet spot $15–$100
Price range
Incredible£25.21–£33.08cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Great167.5avg incumbent reviews — the moat a new listing must climb
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Conversion
Bad1.6%search→purchase rate — share of searches ending in a sale
Growth
Bad-18.8%90-day search growth — must beat 0% to launch
Market size
Bad£56K£56K/yr · 113K searches
Competition
Bad100%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, surströmming is a £56K/yr Amazon United Kingdom market (113K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 39/100.
Data updated Jul 24, 2026 · scored weekly · How we score niches
surströmming market data
- Units sold / yr
- 1K–2K
- avg 100–250/product
- Revenue / yr
- £38K–£45K
- units × avg price
- Conversion rate
- 1.6%
- Avg BSR
- #112
- Page quality
- 0%
- Prime
- 0%
- Sponsored
- 25%
- Out of stock
- 2.9%
- Avg brand age
- 58 months
- Avg seller age
- 165 days
Competition & brand share
The top 5 products capture 100% of clicks — a locked-up shelf that new listings rarely crack.Brands
4 falling
Sellers
4
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
100%
Top 20: 100%
Open market
0%
- Soulgoods45%
- Scandinavian Kitchen30%
- AB Gösta H.F.18%
- Best Natural by NJTrading7%
Demand
Weekly Amazon search volume, last 35 weeks — -18.8% search growth over the last 90 days.Top surströmming search terms
- surströmming66K/yr
- surstromming27K/yr
- surstromming fermented fish uk9K/yr
- fermented fish6K/yr
- surstromming fish4K/yr
Top surströmming 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 4 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Surströmming Röda Ulven Herring 300 g Tin (with fermented herring)
Soulgoods£31.543.9★484 rev

Scandikitchen Surstromming Fermented Herring by Roda Ulven - 400g
Scandinavian Kitchen£30.374.0★14 rev

Surströmming Fillet Röda Ulven 300 g Tin (with Fermented Fillet)
AB Gösta H.F.£33.084.1★167 rev

Surströmming Fillets - Fermented Herring Fillets in Traditional Tin
Best Natural by NJTrading£25.214.7★5 rev
Newest
by launch date
Surströmming Fillets - Fermented Herring Fillets in Traditional Tin
Best Natural by NJTrading£25.215 rev

Scandikitchen Surstromming Fermented Herring by Roda Ulven - 400g
Scandinavian Kitchen£30.3714 rev

Surströmming Fillet Röda Ulven 300 g Tin (with Fermented Fillet)
AB Gösta H.F.£33.08167 rev

Surströmming Röda Ulven Herring 300 g Tin (with fermented herring)
Soulgoods£31.54484 rev
Trending
90-day click momentum
Surströmming Röda Ulven Herring 300 g Tin (with fermented herring)
Soulgoods£31.543.9★

Scandikitchen Surstromming Fermented Herring by Roda Ulven - 400g
Scandinavian Kitchen£30.374.0★

Surströmming Fillet Röda Ulven 300 g Tin (with Fermented Fillet)
AB Gösta H.F.£33.084.1★

Surströmming Fillets - Fermented Herring Fillets in Traditional Tin
Best Natural by NJTrading£25.214.7★
What buyers say about surströmming
What buyers praise and complain about, mined from review topics.What buyers love
“perfect with a bit of crusty bread”
“quite delish”
Common questions
- Is surströmming profitable to sell on Amazon United Kingdom?
- The niche generates £56K/yr across 4 tracked products. 90-day search growth is -18.8%. Flapen's verdict: Skip it (39/100).
- How competitive is the surströmming niche?
- 4 brands and 4 sellers compete. The top 5 products take 100% of clicks and top 5 brands hold 100% of demand.
- What does it cost to enter the surströmming niche?
- Listings span £25.21–£33.08; the average listing price is £30.05 (sweet spot $15–$100). The average incumbent carries 168 reviews — the moat a new listing must climb.