
Looking beneath the hood at historic data, it can be seen that increases in spinoff activity can also signal market tops. When equity is fully valued and growth is sluggish, sometimes a spinoff is the best available option for large companies. So far, activity is below that seen in prior years, but these announcements show that interest is definitely picking up.
Article below details spinoff data with major market tops.
https://www.cnbc.com/2017/10/10/there-was-a-flurry-of-spinoff-announcements-tuesday.html