New competitors are starting to emerge, although it will be an uphill battle for most of these companies. Huobi, LakeBTC, and Kraken are among the contenders, which will not surprise anyone. But do not discount itBit either, as this relatively unnoticed exchange is starting to make some serious waves in the BTC/USD market as of late. At the time of writing, itBit represented 4.31% of 24-hour Bitcoin trading volume.
http://themerkle.com/usd-trading-still-represents-nearly-9-of-24-hour-bitcoin-volume/
