You can see that yesterday's bitcoin price spiked up to $ 1,200 in just a few minutes, indicating that bitcoin prices are getting inflated, I believe that's a big concern, as Capitalism does not increase but bitcoin prices so strong you should be careful when trading altcoin. Altcoin is currently very volatile, there are many altcoin are pumpy if the profits are collected, you should withdraw USDT in order to prevent bad situation can occur.