Ethereum's open interest on Binance has reached its highest level in over nine months, climbing to $6.58 billion as of September 21. This marks a substantial increase of approximately 37%, or $1.78 billion, from late August when it stood at about $4.8 billion. The surge in futures activity follows a major breakout in Ethereum's trading price, reflecting growing participation and bullish sentiment in the ecosystem. Analysts predict this could put ETH on track to retest the $3,000 mark.