What does the “Move” column on Buzz Leaders mean in the Buzz Index?
The move number reflects the change in a term's buzz index score. Positive move numbers are green and negative move numbers are red. While these numbers can sometimes indicate a trend in the popularity of a buzz term, they are also affected by the overall traffic patterns of users on a particular day. (For example, searches on Sunday differ greatly in character and variety from those made on Mondays.)