I've searched it on BinanceUS and Bittrex it comes back empty! In fact, I moved it from BinanceUS to Bittrex and it just shows $0.00, but the amount I transferred is correct. I must be missing something, but I don't know what. I've been this since 2017. Something is not correct obviously.
That means IOST didn't fill all of the requirement to be listed on US exchange site. Any crypto that can be listed on Binance us and bittrex must able to comply with the SEC regulation but it seems like when you can't find that and that means if IOST didn't yet list or it doesn't meet the requirement of US regulation. Forget this coin and you should get another coin dude.
It's too risky to trade on yobit consider this exchange site can lock your money anytime.