Probably there are 2 parties involved:
- Big seller (40k)
- Exchange/MM algo
Very likely there is a big seller with the algo distribution set at 40k, under 40k that sell pressure was not there, so you had an automatic rally, which caused this current bounce, and MM algo take the opportunity to harvest more liquidity with the bull run.exe
If Big seller is done, HODLers are in for a world of hurt.