Marshmallow Fluff Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Jet-Puffed is the best-performing marshmallow fluff brand in July 2026, moving 24,000 units across 4 ASINs for 63.2% of Top 10 volume. eos follows with 3,000 units (7.9%), ahead of TOONIE MOONIE on 3,000 units (7.9%).

With 7 brands splitting the Top 10 and 78.9% 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 $2.38 to $7.79, 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: B00LUIQS98 booked 2K units at $1.42, with ▲ 900.0% MoM change. On the growth side, B0GZLB1LLT leads positive momentum with ▲ 700.0% MoM growth on 400 units, with B0G45QJDZF close behind at ▲ 200.0% MoM on 300 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.