Micron Pen Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

SAKURA is the best-performing micron pen brand in July 2026, moving 17,000 units across 3 ASINs for 38.6% of Top 10 volume. Grabie follows with 7,000 units (15.9%), ahead of KOUSICOO on 5,000 units (11.4%).

With 7 brands splitting the Top 10 and 65.9% 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 $11.99, 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: B0GLZ87R1W booked 2K units at $10.99, with ▲ 100.0% MoM change. On the growth side, B0CP8PT53V leads positive momentum with ▲ 500.0% MoM growth on 600 units, with B0C4VRJ1XP close behind at ▲ 400.0% 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.