Some are commenting that the recent price hike was due to the conferences being held in various places and upcoming conferences.

"In addition, Lee pointed out that the 2018 conference (marking the fourth year of the event), scheduled to kick off in New York City on May 14, is expected to pull in a crowd of roughly 7,000 (as compared to last year’s 2750-strong crowd) – previously, when attendance increased, Bitcoin jumped by 69% during the conference, and 138% in the months following the event."

https://cryptovest.com/news/fundstrat-analyst-foresees-impending-rally-for-bitcoin-owing-to-consensus-conference/