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

Mr. Pen is the best-performing mr pen brand in July 2026, moving 55,000 units across 7 ASINs for 37.9% of Top 10 volume. Sharpie follows with 50,000 units (34.5%), ahead of Ddaowanx on 20,000 units (13.8%).

With 4 brands splitting the Top 10 and 86.2% 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 $6.65 to $9.99, 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, 2 ASINs forced its way in: B08693QC4Y booked 8K units at $6.29, with ▲ 100.0% MoM change. On the growth side, B07DP1TVJN leads positive momentum with ▲ 7900.0% MoM growth 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.