Guides·November 4, 2026·5 min readAmazon Stock Quantity: Why “30+” Lies and How to Check Real InventoryThe dropdown shows what Amazon is willing to display, not what the seller has.Inventory signalsDays of CoverSeller countAmazon out of stock
Guides·November 4, 2026·5 min readAmazon Variations: Why the Parent’s Sales Rank Misleads YouOn an Amazon variation listing, the children can share one sales rank, so a slow colour or size can look like a bestseller. A real example with 20-plus variations, how to estimate one child’s share of sales, and a checklist before you buy.Sales rankProduct researchInventory signals
Guides·October 30, 2026·9 min readDays of Cover: The Formula FBA Sellers Should UseDays of cover tells you how many days of sales remain before a product’s stock runs out. The formula, a worked example, how to read it on a Keepa chart, and how to set a buy threshold from your own lead time.Days of CoverInventory signalsWholesale
Guides·October 30, 2026·9 min readOnline Arbitrage Sourcing: Lists That Survive BuyoutsGood online arbitrage sourcing means filtering deals by sales speed and days of cover before you buy, not after the buyout hits. A pre-purchase checklist, worked skip-or-keep examples and a tool decision for a $49 to $199 budget.Product researchDays of CoverSeller count
Guides·August 11, 2026·4 min readHidden Gold: Why Your Next Big Win May Already Be Sitting in Your Amazon InventoryMost sellers price a product once and move on — but the market keeps moving. How to re-read the inventory already sitting in Amazon warehouses using Days of Cover, seller count and Amazon availability, and when a pricing review is worth doing.Inventory signalsDays of CoverPrice movement
Guides·August 2, 2026·3 min readHow to Spot Products Before Prices RiseThe four market signals that tend to appear before an Amazon price increase — inventory falling, sellers leaving, Amazon going out of stock, and price finally moving — and why they matter far more together than alone.Inventory signalsSeller countAmazon out of stock
Guides·August 1, 2026·4 min readThe Million-Dollar Seller’s Secret: Why Days of Cover Matters More Than PriceWhat Days of Cover is, how to calculate it, and why experienced wholesale sellers watch inventory instead of price charts — plus how the ripeness scale turns it into a buy, watch or pass.Days of CoverWholesaleInventory signals
Guides·July 25, 2026·5 min readStop Chasing Sales Rank — Watch Inventory InsteadBSR tells you what already happened. Inventory tells you what happens next. How Days of Cover, seller count and Amazon availability reveal price moves before they show up in the chart.Sales rankInventory signalsDays of Cover
Guides·July 22, 2026·4 min readHow to Find Amazon Products Before Everyone Else DoesBy the time a product looks like a great buy, thousands of sellers have already found it. How inventory intelligence — Days of Cover, seller count and Amazon stock — surfaces opportunities before the price reacts.Product researchInventory signalsDays of Cover
