Kraken Daily Market Report for December 31 2021 Overview Total spot trading volume at $1.07 billion, the 30 day average is $1.34 billion. Total futures notional at $310.7 million. The top traded coins were, respectively, Bitcoin (-2.1%), Tether (0%), Ethereum (-0.9%), USDC (0%), and Polkadot (-3.2%). Strong returns from Aragon (+20%)…