Ethereum has historically struggled to maintain outperformance against Bitcoin, and recent data suggests the current rally may be fragile. While the ETH/BTC pair surged 53% in Q3 2025, its best quarterly gain since 2021, sellers have since erased half of those gains. The ratio’s 5% rally so far in the current quarter appears too early to confirm a sustained shift. Bitcoin dominance is again pushing toward the 60% resistance level, signaling capital may already be rotating back into Bitcoin. However, on-chain data reveals Ethereum’s outperformance is supported by institutional inflows and rising Layer 2 activity, hinting at a potentially deeper shift.
Ethereum has historically struggled to sustain its outperformance against Bitcoin, data shows.
The ETH/BTC pair last posted a strong quarterly rally in Q3 2025, surging 53%, its biggest quarterly gain since Q2 2021. However, sellers erased 50% of those gains as the rally lost momentum.
The ratio’s 5% rally so far in the current quarter appears too early to confirm a sustained rotation from Bitcoin into Ethereum. Bitcoin dominance is again pushing toward the key 60% resistance level, gaining 1.5% in July.
In contrast, Ethereum’s recent strength is backed by institutional inflows. Ethereum ETFs have attracted over $128 million in net inflows so far this month, outperforming Bitcoin.
A key catalyst may be reinforcing the rotation, as Tom Lee pointed to Robinhood’s recently unveiled Layer 2 chain as a major differentiator. The network uses ETH as its native gas token and settles on Ethereum Layer 1.
Data shows the amount of ETH bridged from Ethereum Layer 1 to the Robinhood Chain has jumped nearly 10x over the past week, surpassing $100 million. This suggests users are actively moving liquidity into Robinhood’s Layer 2 ecosystem.
Against this backdrop, Ethereum’s outperformance against Bitcoin may be more than just another rotation. The move looks increasingly driven by improving fundamentals as institutional inflows, growing Layer 2 activity, and rising on-chain demand strengthen Ethereum’s long-term investment case.
If that trend holds, the ETH/BTC breakout could be the first sign of a broader capital rotation into Ethereum through the current quarter.
