Ethereum surges as Fusaka upgrade nears. Prices spike past $4,300. Traders and analysts are watching closely. The new Fusaka upgrade, set for December 2025, could boost Ethereum’s speed and efficiency. Experts say this may push ETH beyond $5,000. Institutional investors are showing increased interest, adding fuel to the rally. Technical signals point to strong momentum. While the market is volatile, Ethereum’s upcoming changes make it one of the most closely watched cryptocurrencies today.