Is sigma kappa profitable to sell on Amazon United States?

The niche generates $0/yr across 23 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -69.0%. Flapen's verdict: Skip it (29/100).

How competitive is the sigma kappa niche?

5 brands and 6 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 100% of demand.

When does demand for sigma kappa peak?

Demand peaks in Aug–Sep–Oct; the busiest month runs 13.1× the quietest.

What does it cost to enter the sigma kappa niche?

Listings span $7.99–$84.96; the average listing price is $27.56 (sweet spot $15–$100). The average incumbent carries 15 reviews — the moat a new listing must climb.

sigma kappa

Skip it

A small market ($0/yr) — this niche doesn't clear our bar today.

Review moat

Incredible14.83

avg incumbent reviews — the moat a new listing must climb

Avg price

Incredible$27.56

avg listing price — sweet spot $15–$100

Price range

Great$7.99–$84.96

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

Returns

Great1.6%

return rate — above 6% kills the launch gate

Competition

Okay64%

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

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Market size

Bad$0

$0/yr · 56K searches

Growth

Bad-69.0%

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

Conversion

Bad0.0%

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 United States niche tracking, sigma kappa is a $0/yr Amazon United States market (56K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Aug–Sep–Oct. Verdict: Skip it — 29/100.

Data updated Jul 18, 2026 · scored weekly · How we score niches

sigma kappa market data

Units sold / yr: 1K–2K; avg 0–100/product
Revenue / yr: $34K–$41K; units × avg price
Launch success: —; 0 of 2 new (360d)
Conversion rate: 0.0%
Avg BSR: #65,398
Page quality: 0%
Prime: 78%
Sponsored: 39%
Out of stock: 1.5%
Avg brand age: 59 months
Avg seller age: 199 days

Competition & brand share

The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.

Brands

5 flat

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

64%

Top 20: 98%

Open market

Sorority Shop68%
Go Greek Chic23%
Desert Cactus5%
Greekgear2%
Sorority Letters Shop1%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -69.0% search growth over the last 90 days.

Peak months: Aug, Sep, Oct · busiest ÷ quietest = 13.1×

Open Trend

Top sigma kappa 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)2 products missing review or click data not plotted

All 23 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Sorority Shop Sigma Kappa Paperclip Necklace SK 18K Gold Plated Sorority Gifts Necklace Long-Lasting Sigma Kappa Gifts for Women

Sorority Shop$18.794.8★16 rev

Sorority Shop Sigma Kappa Bracelet Glass Bead Bracelet with SK Name Beads and 18K Gold Accent Beads Greek Sorority Jewelry for Big Little Sorority Gifts

Sorority Shop$14.874.9★13 rev

Sigma Kappa Block Letters Pocket T-Shirt (Medium) Mint

Go Greek Chic$29.985.0★8 rev

Sorority Shop Sigma Kappa - Koala Pouch - Logo Design Adhesive cell phone wallet

Sorority Shop$8.664.6★38 rev

Sigma Kappa Blue Daisy Hoodie (Large)

Go Greek Chic$48.205.0★1 rev

Newest

by launch date

Sigma Kappa Varsity Lightweight Mockneck Sweatshirt X-Large

Greekgear$84.960 rev

7mo ago

Go Greek Chic Sigma Kappa Embroidered Classic Canvas Tote Bag - Violet

Go Greek Chic$39.8912 rev

10mo ago

Sigma Kappa Embroidered Hoodie with Camo Design - Ash - Small

Go Greek Chic$44.4213 rev

1y ago

Sorority Shop Sigma Kappa Beach Towel- Lightweight Brand Design 64 x 30 Soft Microfiber Beach Towel Lightweight and Durable Sigma Kappa Towel Water Absorption Quick Dry

Sorority Shop$16.251 rev

1y ago

Sorority Shop Sigma Kappa Makeup Bag - Puffer Style with Sorority Letters Travel Cosmetic Bag with Zipper Closure Perfect Sigma Kappa Sorority Gifts for Women

Sorority Shop$31.310 rev

2y ago

What buyers say about sigma kappa

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

Top return reasons

Size-Overall33%

Value For Money33%

Unsustainable Design17%

Design-Overall17%

Common questions

Is sigma kappa profitable to sell on Amazon United States?: The niche generates $0/yr across 23 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -69.0%. Flapen's verdict: Skip it (29/100).
How competitive is the sigma kappa niche?: 5 brands and 6 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 100% of demand.
When does demand for sigma kappa peak?: Demand peaks in Aug–Sep–Oct; the busiest month runs 13.1× the quietest.
What does it cost to enter the sigma kappa niche?: Listings span $7.99–$84.96; the average listing price is $27.56 (sweet spot $15–$100). The average incumbent carries 15 reviews — the moat a new listing must climb.