If there is no Tether, we lose a massive amount of daily volume -- around $1 billion or more depending on the data source, said Lex Sokolin, global financial technology co-head at ConsenSys, which offers blockchain technology. Some of the concerning potential patters of trading in the market may start to fall away.
Before tether was created, there was no USD volume. But after it was created, there is a tether volume. It's just a way to say that USD has a volume on crypto exchanges. It's for me means nothing and not comparable to other coins because tether is stable and no one actually trade it, they just replace USD with it like to save their capital.