Square Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

vailnd is the best-performing square brand in July 2026, moving 20,000 units across 1 ASIN for 35.1% of Top 10 volume. Square follows with 15,000 units (26.3%), ahead of Diaper Genie on 7,000 units (12.3%).

With 8 brands splitting the Top 10 and 73.7% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $9.99 to $99.53, 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: B0026RHHZ6 booked 2K units at $7.59, with ▲ 100.0% MoM change. On the growth side, B005XUHI98 leads positive momentum with ▲ 166.7% MoM growth on 800 units, with B07PF73X15 close behind at ▲ 150.0% MoM on 1K 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.