Dynamic audiences are generated automatically by Yottly and they can be ideal indicator for you to know on which products segments you should concentrate. On this place you can see the most popular products group between your customers. The segments are dynamic and are changing according to customers behavior including their number. The dynamic audience is used mostly while running display ads campaigns.
The segments group are refreshed every day.
In the Visitors targeted column you can also check how many people you would target by each product group.