An unidentified entity bought 221,166 ETH ($946M) in a week, with $212M in the last 24 hours, using six wallets via Galaxy Digital, FalconX, and BitGo. Ethereum’s market cap hit $523B, surpassing Mastercard. Public companies added $1.3B in ETH, led by BitMine ($900M). Analysts predict ETH could reach $20,000, but Vitalik Buterin warns against overleveraging.