Or there are news I didn't see ?
Market Cap increasing due to intensive inflow of public into Crypto world. The legacy of Bitcoin have insisted general public to enter crypto world in order to make large profits which isn't possible in traditional securities market. But as we see Bitcoin is already increased very much and possibility of profits in BTC is not as as high as possible in past. So investors moved to other coins which resulted enormous increase in Crypto Market Cap. I don't see any rush in that. Increase is gradual and real. I don't think we seeing any big dumping, it is just temporary fall and recover soon.
EDIT: I have just noticed following image on internet, it could be the reason for recent crash.