I have been trading nxs for more than half a year and have not seen what happened yesterday. I suspect Bittrex purposely blocks NXS purse. After he did it, someone began to sell large volumes of coins, sometimes selling them at any price. And at this very time, the price slowly fell on the Binance. Between today's price and yesterday's sales, the difference is from 10% to 15%. Now they will buy Binance coins at a low rate, run them on Bittrex and when they have the right amount they will unlock the purse. Locked the wallet because Bittrex does not have the right amount of coins, and people would understand it if they started displaying them.So they earned money And in that way Bittrex raise money. Sorry for possible errors in the text, English is not my native language.