After the completion of two testnets ahead of the event – now expected the week of Sept. 19 – that will take the Ethereum blockchain from a proof-of-work system to a proof-of-stake consensus mechanism, ether’s price jumped 70% in July. It is currently trading at about $1,780. As comparison, bitcoin (BTC) rose 27% in July, while SOL, the token of the Solana system, gained 38%.