TLDR
Bitcoin (BTC) has been outperforming Ethereum (ETH), and the ETH/BTC ratio has dropped to its lowest level in about 10 months.
- The ETH/BTC pair is around 0.028 at a 10?month low and over 35% below its 2025 peak, while BTC has clearly beaten ETH over the past month.
- Stronger spot demand and ETF inflows into BTC, combined with heavier ETH selling and weak ETH ETF flows, are driving the underperformance of ETH.
- A shift in ETF flows, exchange reserves and the ETH/BTC ratio back above key long term levels would be the clearest signs that this BTC outperformance phase is ending.
Deep Dive
1. Ratio And Performance
Analysts put the ETH/BTC ratio near 0.028, its lowest level since July 2025 and more than 35% below the August 2025 high, with the pair trading well below its 200 week moving average and in a multi?year downtrend since late 2021. This is documented in recent coverage of the ratios slide to about 0.028, the lowest since July 2025.
Over the last 30 days, BTC is up about +14.48% while ETH is up only +5.26%, and BTC now accounts for just over 60% of total crypto market value compared with a little above 10% for ETH, according to dominance metrics. Together, these confirm that BTC has meaningfully outperformed ETH rather than this being a tiny blip.
2. Drivers Of BTC Strength
On the demand side, on chain and ETF data show sustained spot buying of BTC, especially through United States spot BTC ETFs, which saw roughly $2.44 billion of net inflows in April and a single day of $532 million on 4 May, while ETH spot ETF flows have been smaller and less consistent, according to CryptoQuants analysis of ETF and exchange flows.
For ETH, technicals and exchange data look heavier. ETH/BTC remains below long term resistance and moving averages, and exchange reserves of ETH on Binance have risen while BTC reserves have fallen, reinforcing a relative bear trend for ETH that one study argues could extend toward prior cycle lows if weakness continues in the ETH/BTC pair.
Shorter term, whales have been sending large tranches of ETH to Binance and United States ETH spot ETFs recently saw around $100 million of net outflows, a combination that adds near term sell pressure on ETH, as highlighted in reports on whale deposits and ETF outflows.
Capital is treating BTC as the safer core exposure, while ETH has shifted to the prove it bucket that needs fresh demand to reverse the trend.
3. Signals To Watch Next
Three signals matter if you are comparing BTC and ETH from here.
- ETH/BTC price structure: a sustained move back above roughly 0.03 to 0.035 and over the 200 week moving average would be the first technical hint that ETH is starting to catch up.
- Fund and reserve flows: a run of consistent net inflows into ETH spot ETFs and ETH moving off exchanges, with BTC flows no longer vastly stronger, would signal more balanced demand.
- Fundamental usage: stronger ETH fee revenue and activity on major Ethereum layer 2s, alongside stable or falling ETH on exchanges, would support a fundamentals driven catch up rather than a brief squeeze.
You can treat the ETH/BTC pair, ETF flow statistics and exchange reserve trends as a regime dashboard to gauge whether BTCs leadership phase is still in force.
Conclusion
BTCs outperformance over ETH is currently well supported by both price action and flows, with the ETH/BTC ratio sitting near multi?month lows and BTC enjoying much stronger spot demand. Unless ETH starts to attract sustained new capital and improves its on chain and ETF flow profile, the bias remains toward continued BTC leadership in the near term.
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