Block trading allows user to buy and sell larger amounts of Bitcoin and other cryptos and will also compete with other companies and larger instirutuins. In Hong-Kong, block trading companies have been popping up more and more, and been setting trends with this. Other similar services, such as Circle Trade, is currently doing more than 2 BILLION a month in crypto assets.
Block trades are great news as they have less volatile effects on the market because of privately negotiating prices. If you'd like to read the full article, check it out here