Five Brands Own Half of Florida. In Massachusetts They Own a Sixth.

Take the five best-selling brands in a state and add up their share of the market. In Florida that number is 48.41% — five names, essentially half of everything sold. Run the same arithmetic in Massachusetts and you get 16.07%. Same week, same methodology, same product category, three times the concentration. And this isn't a one-week wobble: across the other nine states the top-five figure moved less than 1.4 points week over week, and the rank order of the ten markets didn't change at all.

Florida sits at the top for a structural reason, not a commercial one. The state licenses medical marijuana treatment centers that must cultivate, process, and dispense their own product — there is no third-party wholesale market to sell into. So a Florida brand chart isn't really a brand chart, it's a license chart. Modern Flower (16.74%) and Roll One (16.52%) lead because their parent licensees own the shelves those products sit on. A Florida shopper isn't picking a brand at a store so much as picking a store and getting its brand.

The other end of the table is what an open wholesale market looks like. Fernway leads Massachusetts with 3.80% of the state. Green Dot Labs leads Colorado with 4.90%; ayrloom leads New York with 4.50%. In all three, a cultivation license doesn't come bundled with a storefront, so hundreds of independent producers compete for the same finite shelf — and nobody clears 5%. California, with the largest brand roster on the map, still only concentrates 19.57% into its top five even with STIIIZY sitting at 7.33%.

Illinois is the instructive middle. Its top five take 33.82%, and High Supply alone takes 11.54% — the largest single-brand share anywhere outside Florida. Illinois isn't vertically integrated the way Florida is, but its cultivation licenses are capped and its craft-grow tier has been slow to reach scale, so a small number of large cultivators supply most of the flower that ever reaches a menu. High Supply is Cresco Labs' value line, which is the tell: in a supply-constrained market, the brand that wins on price is the one attached to the biggest grow.

Two caveats worth holding. Oklahoma's 31.37% should be read loosely — the tracked panel there is only 49 retailers and most Oklahoma menus don't expose product-level detail, so the sample likely over-weights the chains it can see. And Florida's own number climbed 7.63 points this week partly for a mechanical reason: its tracked retailer panel widened from 293 stores to 451. The durable finding is the ordering, not any single figure. Concentration tracks license architecture, not consumer taste — the more tightly a state ties cultivation to retail, the fewer brands you actually get to choose between.