What is Stocking Ratio?

Stocking ratio is a used-vehicle merchandising metric that indicates how many units of a particular model a dealership should keep in stock based on how well that model sells and how much competition exists in the market. Rather than stocking every model equally, a data-driven stocking ratio directs inventory dollars toward vehicles that turn quickly and away from those that sit. Modern used-car software calculates recommended stocking levels using sales history, market demand, days supply, and competitive listings, helping managers decide what to buy at auction or accept on trade. Getting the stocking ratio right means fewer aged units, faster turn, and capital deployed where it produces the best return. It shifts inventory decisions from gut feel to evidence, which is especially valuable given tight used-vehicle margins and the cost of holding the wrong cars.