Analyst Larry Cermak said on Twitter: "Tether's premium is declining and has now dropped from about 2.3% yesterday (April 29) to 1.3%. But Bitfinex's premium on Bitcoin rose from 5.7% yesterday to 6.3. %. After the IEO rumors, the market is more confident in Tether than Bitfinex." The data shows that Bitfinex's BTC premium to exchanges such as Coinbase is still near a one-year high.