Supergirl Shirt Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Marvel is the best-performing supergirl shirt brand in July 2026, moving 8,300 units across 4 ASINs for 84.7% of Top 10 volume. DC Comics follows with 1,300 units (13.3%), ahead of Mastom on 200 units (2.0%).

With 3 brands splitting the Top 10 and 100.0% 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 $16.94 to $19.49, 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, 2 ASINs forced its way in: B081QXZBVK booked 100 units at $12.74, with ▲ 0.0% MoM change. On the growth side, B07KVJR8Y3 leads positive momentum with ▲ 500.0% MoM growth on 3K 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.