Whales sometimes behave like hamsters

In the screenshot, you can see that a couple of days ago, a whale sold $ETH for $19.8 million when it was around $3600.

And just last night — due to FOMO (apparently because of the news about Trump's decree on pension funds) — it bought back $ETH for $3750+ for $12 million. As a result, it lost part of the Ether.