Most big cryptocurrencies decline as Polkadot tumbles

Most of the largest cryptocurrencies were down during morning trading on Tuesday, with Polkadot DOTUSD seeing the biggest move, dropping 3.49% to $6.46.

Seven additional currencies posted reductions Tuesday. Uniswap UNIUSD shed 2.08% to $6.61, and Ripple XRPUSD shed 1.48% to 42 cents.

Ethereum ETHUSD shed 1.48% to $1,612.98, while Litecoin…