Volatility
How much the product's visibility jumps from one capture to the next. Lower means steadier.
How much the product's position value moves between two consecutive captures, averaged across the keywords in your search, on the same 0–100 scale as the JustRanks Score. Entering or dropping off page 1 counts as a jump too. Moves near the top weigh more than moves at the bottom of the page.
Lower usually signals more stability.