In the aftermath of these fluctuations, SEO experts scramble to determine the cause of these fluctuations, and the factors that will have been impacted by the update. This recent update was no different, with many websites seeing huge fluctuations in their rankings, both positively and negatively. You can see the volatility in the graph below sourced from SEMRush Sensor:
As you can see, on May 5th, the day the core update was released, the volatility shot up to more than double its usual amount.