waited for this chance for 3 months so sell at ATH.
I know many miners were waiting to mine batches today and cash out.
EXOR activity shows just how many people mined their batches in last few days:
https://ethplorer.io/address/0x898bf39cd67658bd63577fb00a2a3571daecbc53#pageSize=50

But obviously, they will dump at this price.
The activity of batches increased from 28 Dec so possibly insider trading as well.