Poloniex also known as Polo, has been based out of Delaware, United States, since 2014. It’s a well-known name in the industry, and it consistently boasts the highest trading volumes for altcoins.
With a grand redesign in early 2015 the site has added a wealth of features to provide a fully immersive trading experience. Technical analysis charts and live chat mean it is easy to stay abreast of news flow and analyse price trends before taking a position.
Once you’ve deposited your chosen funds, there’s an option to store value in USDT (Tether), a cryptocurrency that represents US dollars (e.g., 1 USDT should be the same as 1 USD).
https://99bitcoins.com/poloniex-review/