Look at the price charts. Today the crypto exchange markets are falling drastically by more than 10%. I guess that many people are in panic and are selling all their coins and tokens to reduce a losses. I don't know whether the "whales" decided to cash out from the crypto exchange markets or not, but I see the negative trend especially in altcoins. The panic is a normal behavior if it has a reliable reasons and basis. The decisions made in panic can be correct too.