Brazilian stock exchange $B3 announced that it will launch Ethereum ($ETH) and Solana ($SOL) futures contracts on June 16, having received approval from the Brazilian securities regulator CVM. The new contracts will be denominated in US dollars, with units of 0.25 $ETH and 5 $SOL respectively. Additionally, to enhance market liquidity, $B3 will reduce the notional value of Bitcoin futures contracts from 0.1 BTC to 0.01 BTC. (Bitcoin com)