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·October 30, 2026·9 min readWholesale Supplier List: How We Vet Every NameMost wholesale supplier lists are directory dumps with no evidence anyone checked them. A three-stage vetting checklist, how to verify a US wholesaler before you send a purchase order, the supplier types and when each fits, and the red flags that mean walk away.WholesaleProduct researchFBA
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·October 29, 2026·11 min readAmazon FBA Profit Calculator: Get Every Fee Input RightAn Amazon FBA profit calculator only tells the truth if you feed it the right fee inputs. Fix the referral fee, FBA fulfillment fee, storage and inbound shipping, then read the margin against Days of Cover before you buy.FBAWholesaleProduct research
Guides·October 29, 2026·10 min readAmazon FBA Wholesale Sourcing: Pre-Purchase ChecklistMost sellers can get a distributor’s price list, but few have a repeatable way to decide which lines deserve money. Six decisions to make before any purchase order: vet the distributor, confirm ungating paperwork, run true per-unit margin math, set thresholds, check saturation, and know when to walk away.WholesaleFBAProduct research
Guides·October 9, 2026·5 min readHow to Check an Amazon Product for Free Before You Buy It or Ship It to FBABefore you buy stock or send it to an Amazon warehouse, run three free checks: can you sell it, does the margin survive real fees, and will it sell before your units sit in storage. Free tools for each step, plus a free forecast of how fast it sells and how long the stock already on Amazon will last.Free toolsFBAProduct research
Guides·August 14, 2026·5 min readWhen NOT to Buy an Amazon ProductFour warning signs worth checking before you place a wholesale order: too many sellers, Amazon in stock, high Days of Cover, and shortages that are only temporary. Why ROI alone cannot tell you what the market will look like when your inventory arrives.Buying timingSeller countDays of Cover
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 4, 2026·3 min readWhy Most Product Research Tools Miss Tomorrow’s Best OpportunitiesPrice history, ROI and sales estimates all describe the market as it is right now — but wholesale sourcing takes weeks. Why the lead time between research and go-live is the gap most tools leave open, and what to watch instead.Product researchLead timeBuying timing
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
