Costco revealed how it controls the prices of almost everything you buy.
This is one of the most important things you will hear about how consumer prices actually get set (Save this).
Kirkland is an $80 billion brand that strikes genuine fear into some of the largest companies in the world.
When Costco announces it is entering your product category with a Kirkland version, national brand suppliers immediately cut their prices because they have no choice.
Some suppliers would rather Costco never entered their category at all.
Costco caps its own profit margin at 14% on every single product in the store, with Kirkland being the only exception at 15%.
That one internal rule forces Costco buyers to compete on volume instead of squeezing the last dollar of margin out of every transaction.
Their buyers are not rewarded for being greedy, they are rewarded for moving as many units as possible at the lowest price.
That is the complete opposite of how almost every other major retailer in America operates.
Costco buyers also monitor raw commodity markets, coffee prices, protein costs, ingredient inputs and they launch Kirkland products precisely when national brands are raising prices while their own costs are actually falling.
They are hunting windows of opportunity to expose price gaps being exploited by the biggest brands in the world.
The executive gave one specific example that tells the whole story.
Costco was developing a bacon, egg, and cheese breakfast sandwich to compete with the national brand equivalent.
The initial version matched the national brand on protein content, and the executive rejected it.
The team went back, renegotiated the supplier deal, added 40% more protein to the sandwich, held the exact same price, and launched it successfully.
Every time a Kirkland product enters a category, the national brand sitting next to it on the shelf receives a signal, match our quality or justify your price premium publicly.
The brands that cannot do either slowly lose their customers.
The executive called it a halo effect, but the pressure it creates on suppliers is anything but gentle.
National brands are essentially forced to stay competitive just to earn the right to sit on the same shelf as a Kirkland product.
For 30 years, Walmart and Target have watched this exact model and have not been able to replicate it at the same scale.
Reminder Kirkland Signature did $90B in 2025, more than Boeing ($89B), FedEx ($88B), T-Mobile ($88B), P&G ($84B) or Wells Fargo ($80B).
Costco’s CEO explains white-label strategy:
caps Kirkland margin to 15% (usually single-digit % for supplier w/ focus on volume)
spend years to develop a product (Costco demands manufacturer make at least one part of offering superior to competing national brand from same manufacturer; he said for a breakfast sandwhich, Costco got “40% more protein” on the bacon)
Costco buyers look for where the market price is rising over time relative to inputs (basically keeps competitors in check for any vertical it enters)
Long been rumoured that Costco taps the top brands themselves to manufacturer (eg. Titleist for golf balls, Grey Goose for vodka…but both have denied).
Costco CEO Ron Vachris says two vertical he wanted Kirkland to do were razors and consumer electronics. Hasn’t cracked yet.
For real, a 60” Kirkland Signature flatscreen TV might get driven to under $100.
