Siete Cookies Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Simple Mills is the best-performing siete cookies brand in July 2026, moving 30,000 units across 3 ASINs for 27.3% of Top 10 volume. Annie's Homegrown follows with 20,000 units (18.2%), ahead of Back to Nature on 10,000 units (9.1%).

Volume is spread across 8 brands, with the top three holding 54.5% between them. No single label controls the shelf, which usually leaves room for a well-differentiated listing to take share without outspending an incumbent. Average selling prices among the leaders run from $4.40 to $7.69, which frames the price band a competing listing has to justify.

Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. Specifically, one ASIN forced its way in: B08BD4Y9S5 booked 10K units at $2.06, with ▲ 25.0% MoM change. On the growth side, B0774WW3PP leads positive momentum with ▲ 125.0% MoM growth on 9K units, with B08149X85L close behind at ▲ 100.0% MoM on 4K units.

The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.