🔗 ETH/BTC Correlation — Where We Stand Now (Oct 2025)

The ETH/BTC correlation shows how closely Ethereum follows Bitcoin’s price moves. For years, they moved almost in sync — with correlations above 0.9, meaning ETH mostly mirrored BTC.

But in 2025, this link has weakened. The 3-month correlation dropped below 0.2, showing ETH is moving more independently. The ETH/BTC ratio has also fallen, meaning ETH is underperforming BTC — a sign of strong Bitcoin dominance.

📊 Why it matters:

High correlation → ETH follows BTC (less diversification).

Low correlation → ETH may lead or lag (more trading opportunities).

Right now, BTC remains stronger as ETF inflows and dominance rise. But if the ETH/BTC ratio breaks upward again, it could signal the start of altseason.