K9 Advantix Ii Large Dog Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Frontline is the best-performing k9 advantix ii large dog brand in July 2026, moving 30,000 units across 2 ASINs for 30.9% of Top 10 volume. K9 Advantix follows with 26,000 units (26.8%), ahead of PetArmor on 18,000 units (18.6%).

With 6 brands splitting the Top 10 and 76.3% 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 $35.58 to $40.98, 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: B00I2266Y2 booked 7K units at $35.62, with ▲ 0.0% MoM change. On the growth side, B06XJS4HG7 leads positive momentum with ▲ 100.0% MoM growth on 2K 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.