May 24
16
I have been continuing to update the May 9th Google ranking volatility story, but it is super unusual to see such heated volatility for such a long period within the Google Search rankings. This continued Google search ranking update of sorts kicked off with May 3rd but then spiked with May 9th and has really not let up much since.
See the original post:
Continued Heated Google Search Ranking Volatility Through May 16th