Reordering promoted posts via Stream Administration
Click the Settings Cog.
Select Stream Administration under Posts.
Hover over a post title and click the post options ellipsis.
Select Reorder Promoted Posts.
Drag and drop posts into the desired order and click Apply.
Reordering promoted posts via the activity stream
Hover over the bullhorn icon and click the post options ellipsis.
Select Reorder Promoted Posts.
Drag and drop posts into the desired order and click Apply.