How is it possible waves volume on Tidex (almost unknown exchange) and on Yobit is much higher than on Bittrex or Binance?

Waves volume today on:
Tidex: 12M USD
Yobit: 5M USD
Bittrex: 1.2M USD
Binance: 0.9M USD

https://coinmarketcap.com/currencies/waves/#markets