CME Group published preliminary specifications for options on its Bitcoin futures on October 30, 2019, giving market participants their first detailed view of how the planned regulated derivatives product would work.
Each option would be tied to one CME Bitcoin futures contract, representing five bitcoin. The product would be quoted in U.S. dollars per bitcoin, but it would not deliver bitcoin. Exercise would produce a position in CME’s existing cash-settled futures contract, whose final value was determined through the CME CF Bitcoin Reference Rate.
The details mattered because they moved CME’s proposal beyond a general product announcement. Banks, trading firms and other eligible derivatives users could begin evaluating contract size, settlement mechanics, trading hours and operational requirements. The publication did not, however, establish that trading had started or that regulatory review was complete.
How the proposed contract worked
The October 30 specifications described a European-style option, exercisable only at expiration. The underlying futures contract represented five bitcoin, making the option a comparatively large instrument designed primarily for professional derivatives markets rather than small retail positions.
The regular minimum price increment was $5 per bitcoin, equal to $25 for the five-bitcoin contract. A reduced increment of $1 per bitcoin, or $5 per contract, applied under the preliminary terms for lower-priced premiums. Trading was planned from 5:00 p.m. to 4:00 p.m. Central time from Sunday through Friday, with a daily maintenance break.
At expiration, an in-the-money option would be exercised into the underlying Bitcoin futures contract. That futures position would settle in cash against the CME CF Bitcoin Reference Rate at 4:00 p.m. London time on the final trading day. Consequently, neither buying the option nor carrying it through settlement required CME to deliver bitcoin through a blockchain transaction.
That distinction was institutionally important. The option was designed to provide exposure to changes in the price of a regulated Bitcoin future while keeping collateral, clearing and settlement inside established derivatives infrastructure. It did not create ownership of bitcoin, eliminate basis risk between futures and spot markets, or turn cryptocurrency exchanges contributing to the reference rate into CME-regulated venues.
CME was building on an established futures market
CME had announced on September 20, 2019 that it intended to introduce the options during the first quarter of 2020, pending regulatory review. In that announcement, the exchange said its Bitcoin futures had completed 20 expiration settlements since their December 2017 debut and had been traded by more than 3,300 individual accounts.
CME also reported that nearly 7,000 futures contracts, notionally equivalent to about 35,000 bitcoin, had traded per day on average during 2019 through September 20. Because every futures contract represented five bitcoin, the 35,000-bitcoin figure was a notional conversion rather than evidence that an equal quantity of bitcoin changed hands in spot markets.
The exchange further said the number of large open-interest holders had reached a record 56 in July 2019. Those figures were CME’s own product statistics covering different periods; they did not measure the entire global Bitcoin derivatives market or prove that institutions would adopt the proposed options.
What was and was not established on October 30
The verified event-day development was the disclosure of a preliminary contract design. The launch remained targeted for the first quarter of 2020 and subject to regulatory review. No event-day options price, trading volume, open interest or customer-position data existed because the contract was not yet trading.
The specifications nevertheless marked another step in Bitcoin’s integration with conventional risk-management markets. Options could let eligible participants hedge nonlinear price exposure, manage futures positions or express views on volatility through a centrally cleared exchange product. Whether the market would develop meaningful liquidity remained uncertain.
Later confirmation
A CME Special Executive Report dated November 19, 2019 confirmed the central five-bitcoin contract size, European exercise, cash-settlement mechanism, regular $25 contract tick and planned trading hours. That later record corroborates the preliminary design disclosed on October 30; it does not change what was knowable on the event date.
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This article provides news and analysis, not investment, legal or tax advice. Digital assets are volatile and may result in total loss.

