ETH liquidity drops below 50% of BTC

TLDR

Ethereum (ETH) order-book liquidity on major exchanges has dropped to roughly one third to half of Bitcoin (BTC), indicating a meaningful shift in market structure.

1. CoinGecko data shows ETH median order-book depth now about 35 to 45 percent of BTC, down from at least 60 percent a year ago.
2. This gap means large ETH trades now face more slippage and execution risk than similar BTC trades, even though ETH prices and ETF inflows have risen.
3. Key things to watch are changes in ETH depth, spreads and ETF flows, which will show whether this is a temporary imbalance or a lasting tilt toward BTC.

Deep Dive

1. Size Of The Liquidity Gap

A recent CoinGecko analysis, summarized by TradingView and CryptoBriefing, finds that Ethereums median order-book depth within a very tight band around the mid-price is now only 35 to 45 percent of Bitcoins, versus at least 60 percent in the same period last year, across eight major centralized exchanges, with ETH depth around 13 to 14 million dollars and BTC depth around 29 million on the bid side and 37 million on the ask side in that band.

This is not a collapse in absolute ETH liquidity, but a relative shift: BTC books have thickened significantly while ETH has stayed roughly flat, which mathematically pushes ETH below half of BTCs depth.

2. Why Thinner ETH Liquidity Matters

Order-book depth is the amount of resting limit orders near the current price; when it is thinner, big trades have to eat further into the book, causing more slippage and price impact. That matters most for institutions, funds and algorithmic desks that regularly move tens of millions of dollars.

At the same time, ETH has rallied strongly and seen sizable spot ETF inflows, yet the liquidity that supports those moves has not kept pace, suggesting that demand is coming more from ETF vehicles and long holders than from market makers adding deep two-sided order-books. Bitcoin ETFs, by contrast, are much larger and have attracted more cumulative flows, which likely contributes to exchanges committing more capital to BTC depth.

3. What To Watch Next

Three practical signals to monitor:

1. Depth metrics for ETH vs BTC on top exchanges, especially within 0.15 percent of the mid-price, to see if ETHs ratio climbs back above 50 percent.
2. Bid-ask spreads and slippage for large ETH orders across venues compared with BTC, particularly during volatile sessions or liquidation spikes.
3. Net flows and assets in ETH and BTC spot ETFs, which can show whether institutional interest broadens beyond BTC and encourages market makers to thicken ETH books.

If ETH depth keeps lagging while BTC continues to improve, it would underline a structural preference for BTC as the main liquidity backbone of the market.

Conclusion

ETH trading remains liquid for most retail-sized orders, but its median order-book depth now sits clearly below half of BTCs, a reversal from the near-parity seen a year ago.

For crypto users, the implication is that BTC currently offers safer execution for very large trades, while ETH carries more impact risk despite strong price performance and ETF interest. Watching depth, spreads and ETF flows will show whether ETH can regain ground or whether BTCs liquidity lead becomes a defining feature of the next market cycle.