http://variety.com/2017/film/news/spider-man-homecoming-swings-to-top-of-social-media-buzz-1202447751/
The usual ComScore thing isn't up (either that, or they haven't updated, and it will be put up later) but the article states:
-175K social media conversations for Spider-Man: Homecoming last week, 1.87 million cumulative convos
-120K for The Last Jedi, 1.83 million total
-100K for Wonder Woman
-16.7K for Cars 3
-16.4K for Dunkirk, 833K total