Bittrex is famous for disabling an altcoin wallet whenever there's an upcoming good news so they could buy significantly cheaper than the poor b@stards who waited for weeks hodling because they are VIPs. They make hundreds of BTC through insider trading and stealing other people's hard-earned money. Get used to it. Next time, just wait patiently and ride with them. That 150k dump is a solid proof of a retard panic selling during the "Wallet disabled" happy time.