19–21

This market will resolve according to the number of albums that are ranked number 1 on any official weekly Billboard 200 albums chart released for a data collection reference period entirely between January 1 and December 31, 2026. Each specific album may only count once, regardless of the number times it reaches the number 1 spot. Different editions of the same album will be considered to be different specific albums if they contain different tracklists. Billboard updates the Billboard 200 al...