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

YIYIOOTH is the best-performing spy brand in July 2026, moving 500 units across 1 ASIN for 27.8% of Top 10 volume. Paramount follows with 400 units (22.2%), ahead of Lizgoxd on 300 units (16.7%).

With 9 brands splitting the Top 10 and 66.7% 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 $7.99 to $32.99, 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: B0DQ27X51T booked 50 units at $24.96. On the growth side, B0GWPFH7CM leads positive momentum with ▲ 50.0% MoM growth on 300 units, with B0FKTGC5HY close behind at ▲ 25.0% MoM on 500 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.