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BTC 
ETH The leading crypto options platform is losing dominance
According to data, Deribit's monthly share of the Bitcoin and Ethereum options markets has dropped from 56.3% in January to 41.8% in June, although the platform still maintains its overall lead with a half-year market share of 49.3%. In the first half of 2026, the total options trading volume on the five major platforms was approximately US$864.6 billion, of which Deribit processed US$425.9 billion. But the trend is clear: Competitors are chasing hard, and in the Ethereum options space, one competitor is already leading.
Bybit's quiet rise
Bybit accounted for 22.3% of Bitcoin and Ethereum options trading volume at the end of the half year, ranking second. However, what is even more striking is its dominance of Ethereum options: Data shows that Bybit accounts for about 38% of Ethereum options trading volume, compared with only 29% for Deribit. This is not an accidental statistical fluctuation. Ethereum options are structurally different from Bitcoin contracts-they are more likely to attract active DeFi native traders and reflect sentiment about Layer-2 expansion and protocol development. This shift in leadership shows that trader loyalty is not limited to a single platform.
Binance and OKX followed closely with 13.4% and 13.3% respectively, but the top four exchanges together control more than 98% of the market. Although rankings are changing, concentration remains high. For market makers and institutional trading desks, this oligarchic structure still simplifies hedging operations, but the dispersion of liquidity across different platforms has forced risk management teams to model more carefully.
Why a decline is important
Deribit's historical advantage lies in the fact that it is the first to provide crypto options products with good liquidity and deep connection with institutions. It pioneered portfolio margin and collateral flexibility that kept professional traders sticky. But these functions are increasingly being replicated. Bybit and other platforms are investing heavily in matchmaking engine delays, unifying margin accounts and API infrastructure that attracts algorithmic trading teams. As products become homogeneous, transaction costs, rate structures, and aggressive promotions begin to upset the balance.
This decline also coincides with a period of heated discussions on derivatives regulation. The U.S. Senate is preparing to vote on a landmark crypto bill, and banks are putting in last-minute resistance. How the bill treats offshore derivatives platforms, many of which serve liquidity in neighboring areas of the United States through subsidiaries, could further change the competitive landscape. An exchange that seems strong today could empty its order book if key areas were cut off.
What the market is focusing on
The next key data point is whether Deribit can stabilize its Ethereum option share in the third quarter. Historically, activity has often increased during hard forks, ETF decisions, or major DeFi events. If Bybit maintains its lead when trading volume surges, then the perception of Deribit as a de facto options exchange will fade faster than the superficial numbers suggest. At the same time, the entire market is growing-$864.6 billion in half a year is not a shrinking pie-so absolute trading volume can still rise, even as shares change.
The bigger mystery is whether option trading volume will be further dispersed as the on-chain DeFi option protocol matures. Centralized exchanges still dominate because they provide capital efficiency that on-chain systems cannot currently match on a large scale. But if this gap narrows, competition among centralized exchanges will be only a small part of a larger puzzle. For now, news in the first half of 2026 suggests that crypto options are no longer the story of a single exchange.
