Bybit Overtakes Deribit in ETH Options as Market Share Erodes 14% in Six Months

The leading crypto options venue is losing its grip. Deribit’s monthly share of the combined BTC and ETH options market fell from 56.3% in January to just 41.8% in June, even as the platform retained its overall lead with a 49.3% half-year share, according to CoinGlass data cited in the original report. The five largest platforms recorded roughly $864.6 billion in total options volume in the first six months of 2026. Deribit handled $425.9 billion of that. But the direction of travel is clear: competitors are biting hard, and in Ethereum options, one rival has already pulled ahead.

Bybit’s quiet takeaway

Bybit ended the half-year with a 22.3% volume share across BTC and ETH options, placing it second overall. Yet the more striking number is its dominance in ETH. The report shows Bybit captured about 38% of ETH options volume, leaving Deribit at 29%. That is more than a statistical blip. Ether options are structurally different from bitcoin contracts — they tend to attract more active DeFi-native traders and reflect sentiment around layer‑2 adoption and protocol developments. A shift in leadership there signals that trader loyalty is not anchored to a single venue.

Binance and OKX trailed with 13.4% and 13.3% respectively, but together the top four exchanges controlled over 98% of the market. Concentration remains high, even if the pecking order is shifting. For market makers and institutional desks, that oligopolistic structure still simplifies hedging, but the fragmentation of liquidity across venues is something risk managers now have to model more carefully.

Why the slide matters

Deribit’s historical advantage was built on being first to offer liquid crypto options with deep institutional connectivity. It pioneered portfolio margining and collateral flexibility that kept professional traders sticky. But those features are increasingly replicated. Bybit and others have invested heavily in matching-engine latency, unified margin accounts, and API infrastructure that appeals to algorithmic shops. When the product becomes commoditized, execution costs and fee schedules — combined with active promotional campaigns — start to tip the balance.

The slide also coincides with a period when the broader regulatory conversation around derivatives is intensifying. The US Senate is preparing to vote on a landmark crypto bill, with banks pushing back at the last minute, as covered by BlockchainReporter’s earlier report. How that bill treats offshore derivatives venues — many of which serve US-adjacent liquidity through subsidiaries — could alter the competitive map further. An exchange that looks strong today might find its order book hollowed out if key geographies are cut off.

What the market is watching

The next data point will be whether Deribit can stabilise its ETH options share during the third quarter. Historically, activity tends to pick up around hard forks, ETF decisions, or major DeFi events. If Bybit sustains its lead during a volume surge, the perception of Deribit as the de facto options exchange will erode faster than the headline numbers suggest. At the same time, the combined market is growing — $864.6 billion in half a year is not a shrinking pie — so absolute volumes can rise even as slices shift.

The bigger unanswered question is whether options volume will diversify further as on-chain DeFi options protocols mature. Centralised venues still dominate because they offer capital efficiency that on-chain systems cannot match at scale. But if that gap narrows, the fight among centralised exchanges becomes a smaller part of a much larger puzzle. For now, the message from the first half of 2026 is that crypto options are no longer a one-exchange story.