If you sell on Amazon FBA or are planning to start reading a Keepa graph is one of the most valuable skills you will ever develop. Keepa tracks the complete price and sales rank history of every product on Amazon — going back up to two years — and displays that data as a visual chart that tells you exactly how a product has been selling whether prices are stable or declining and whether Amazon itself is active on the listing. Every sourcing decision you make as a wholesale FBA seller should be informed by a Keepa graph check. Without it you are guessing. With it you are making data-backed decisions.

We are Brandhunterz Ltd — a UK registered wholesale sourcing company (Company No: 15342697) — and in this complete guide we explain every line on a Keepa graph what each one tells you how to interpret the patterns that indicate a strong wholesale opportunity and the specific warning signs that should stop you from ordering a product before you spend a single pound on stock.

What is Keepa and Why Do Amazon FBA Sellers Need It?

Keepa is an Amazon price tracker that has been recording price and sales rank data for every product on Amazon since 2013. It stores this data and presents it as interactive charts available to subscribers — giving you historical context about any product’s performance that Amazon’s own platform never shows you.

Amazon only shows you what a product looks like right now — its current price current rank and current sellers. Keepa shows you what a product has looked like for the past 12 to 24 months — which is the difference between seeing a snapshot and seeing a film. For wholesale FBA sellers sourcing decisions must be based on the film not the snapshot. A product that looks great today might have had Amazon selling on it six months ago. A product with 3 sellers today might have had 15 sellers two months ago before prices crashed. Keepa shows you this history. Amazon does not.

Without Keepa	With Keepa
You see today’s price only	You see 24 months of price history — rising falling or stable
You see today’s BSR only	You see 24 months of rank history — consistent or erratic
You cannot see if Amazon was ever selling	You see exactly when and how often Amazon entered the listing
You cannot see seller count history	You see how the number of sellers has changed over time
You make sourcing decisions on incomplete data	You make sourcing decisions on complete historical data

The Five Lines on a Keepa Graph — What Each One Means

When you open a Keepa chart you will see multiple coloured lines plotted over a timeline. Each line tracks a different data point about the product. Here is exactly what each line represents and what you are looking for:

Line 1 — The Green Line — Amazon Best Seller Rank

The green line on the Keepa chart shows the product’s Amazon Best Seller Rank over time. BSR is a relative ranking of how well a product sells within its category — the lower the number the better the product is selling. Every time a product is purchased its BSR drops. When nothing is selling the BSR rises back up. The green line therefore traces the sales activity of the product over the full chart period.

Green Line Pattern	What It Means	Wholesale Signal
Regular frequent drops — consistent across all 12 months	Strong year-round demand — product sells daily or near-daily	✅ Excellent
Drops concentrated in specific months — flat otherwise	Seasonal product — demand peaks in those months only	⚠️ Seasonal
Mostly flat line with occasional small dips	Very slow selling product — sells rarely	❌ Avoid
Drops getting less frequent month on month	Declining product — losing market demand over time	❌ Avoid
Drops getting more frequent month on month	Growing product — demand increasing over time	✅ Very good

Line 2 — The Orange Line — Amazon as a Seller

The orange line is the most important line on the Keepa graph for wholesale FBA sellers. It shows when Amazon itself — as a first-party seller — has been active on the listing. When Amazon holds the Buy Box third-party sellers receive almost no sales regardless of their price or seller metrics. An orange line appearing on your Keepa chart is a critical warning sign.

Orange Line Scenario	What It Means	Action
No orange line visible at all	Amazon has never sold this product — ideal for third-party sellers	✅ Green light
Orange line appeared briefly once — then gone	Amazon tested selling briefly but exited — possible opportunity	⚠️ Proceed cautiously
Orange line appears regularly — comes and goes	Amazon dips in and out — unpredictable competition risk	❌ Avoid
Orange line consistently present across the whole chart	Amazon dominates this listing — third-party sellers get almost nothing	❌ Never source

Line 3 — The Blue Line — Buy Box Price

The blue line tracks the Buy Box price over time — the price that appears on the product page that customers click to purchase. This is the most commercially significant price on any Amazon listing because it is the price at which the vast majority of sales occur. For wholesale FBA sellers the blue line tells you whether the market price for this product is healthy stable and protective of your margins — or declining in a way that will erode your profitability every month.

Blue Line Pattern	What It Means for Your Margin	Signal
Flat or gently rising over 12 months	Healthy market — MAP enforced — margins protected	✅ Strong
Slight dips but quickly recovers	Minor price competition — market corrects itself — acceptable	✅ Acceptable
Steady downward trend over 12 months	Price erosion — margin compression — race to bottom underway	❌ Avoid
Dramatic drops then partial recovery	Price wars between sellers — unpredictable margin risk	❌ High risk

Line 4 — The Red Line — New Third-Party Seller Price

The red line tracks the lowest new price offered by third-party sellers on the listing — not the Buy Box price but the absolute cheapest available new price at any given time. The relationship between the red line and the blue line tells you a great deal about the competitive dynamics on the listing. When the red and blue lines closely track each other it means competition is tight and most sellers are pricing near the Buy Box price. When the red line sits significantly below the blue line it indicates a seller undercutting the market — which can trigger a price war that compresses margins for all sellers.

Line 5 — The Black Line — Number of Sellers

Some Keepa views include a black or dark line showing the total number of sellers on the listing over time. This line tells you whether the listing has been getting more or less competitive over the period you are reviewing. A rising seller count combined with a falling blue line price is the clearest possible signal of a listing in a race-to-the-bottom price war that you should avoid entirely.

How to Read a Keepa Graph — The Complete Step-by-Step Process

Here is the exact sequence to follow every time you open a Keepa chart for a product you are researching. Work through every step in order — never skip ahead — and make your sourcing decision only after completing all checks:

Keepa Graph Patterns — What a Good Product Looks Like vs a Bad One

✅ Strong Wholesale Product — Keepa Signals	❌ Weak or Risky Product — Keepa Signals
Green line drops consistently every 1 to 3 days	Green line mostly flat — drops only once per week or less
No orange line anywhere on the 12-month chart	Orange line visible at any point in the chart history
Blue line flat or rising — price held over 12 months	Blue line declining month on month — price erosion underway
Red line tracks closely to blue line — no aggressive undercutting	Red line sits significantly below blue — price war in progress
Consistent pattern across all 12 months — no dramatic changes	Erratic pattern — sudden changes in rank or price that are unexplained
BSR comfortably under 50,000 in main category	BSR above 100,000 — product barely selling in category

Common Keepa Reading Mistakes New Sellers Make

Common Mistake	Why It Causes Problems	Correct Approach
Using a 30-day chart view only	Misses seasonality declining trends and historical Amazon presence	Always use 12 months minimum — 24 months where available
Ignoring a brief orange line period	Amazon may return — stock gets stranded with no Buy Box share	Treat any orange line history as a risk flag regardless of when it appeared
Assuming one spike means consistent demand	Single spike may be a one-off promotion or viral moment — not repeatable demand	Require multiple consistent drops throughout the full 12-month period
Accepting slow decline as acceptable	A slow price decline today becomes a margin-destroying trend in 3 to 6 months	Any consistent downward price trend is a disqualifying factor
Not checking subcategory BSR	Main category BSR of 50,000 may mean very different velocity in different categories	Always check subcategory rank for more precise demand context

Keepa Pricing — What Does It Cost?

Keepa costs approximately €19 per month for full data access — making it one of the most cost-effective tools in any Amazon FBA seller’s research stack. The free version of Keepa shows basic price history but limits access to sales rank data which is essential for wholesale sourcing decisions. A Keepa subscription pays for itself many times over with a single correctly researched product order — and prevents losses many times its cost by correctly identifying products that should not be ordered.

Keepa Plan	Cost	What You Get
Free	£0	Basic price history — no sales rank data — not sufficient for wholesale research
Subscriber	~€19/month	Full price and BSR history — all chart lines — data exports — essential for wholesale

Conclusion — Keepa is Non-Negotiable for Wholesale FBA Research

Reading a Keepa graph correctly is the single most important research skill for Amazon FBA wholesale sellers. Every product you order should be backed by a clean Keepa chart — consistent green drops no orange line and a stable blue price. Every product that fails any of these checks should be removed from your sourcing shortlist immediately regardless of how good the wholesale price looks.

Subscribe to Keepa and use it on every product before every sourcing decision. Find the wholesale brands behind your validated products in our Brands Directory. And calculate your exact margins using AMZScout before placing any wholesale order.