Deribit Dominates Coinbase Derivatives Open Interest Ahead of September Migration

Nearly all open interest displayed on Coinbase’s derivatives dashboard is already held at Deribit, its global derivatives platform, with institutional positions at the smaller Coinbase International Exchange scheduled to migrate there on September 9.

A Coinbase derivatives dashboard snapshot taken at 15:42 UTC on September 1 showed $40.65 billion in daily open interest across three venues. Deribit accounted for $39.26 billion—approximately 96.6%—while Coinbase Derivatives held $1.17 billion and the International Exchange held $226.98 million.

The September 9 transfer encompasses the $226.98 million International Exchange book, client accounts, and trading infrastructure. The $39.26 billion already held at Deribit will remain in place at the venue representing nearly all open interest shown on Coinbase’s dashboard.

Open interest measures outstanding derivatives positions, distinct from customer assets, exchange revenue, unique capital, and solvency metrics.

The dashboard’s headline total stood at $40.55 billion at the same retrieval point—$100 million below the venue-level panel. The venue panel serves as the relevant basis for comparing where displayed open interest resided, and all figures remain a live snapshot.

What Changes on September 9

Coinbase states that institutional International Exchange accounts, open positions, and balances remain scheduled to migrate to Deribit on September 9. The company notes in its migration materials that the date depends on client readiness and regulatory approvals and remains subject to change.

The cutover carries operational significance even though the International Exchange contributes less than 1% of displayed open interest. Coinbase anticipates approximately 30 minutes of downtime.

The institutional FAQ indicates that all open International Exchange orders will be canceled, positions settled at mark price with profit and loss crystallized and funding paid, resulting balances transferred, and positions recreated on Deribit at the same settlement price through matched migration trades.

Coinbase’s International Exchange trading rules treat contracts as continuous and enforceable under Deribit FZE’s rules. The FAQ describes how those positions will settle and be rebooked during the migration window.

Independent venue settlement before the cutover can produce immediate unrealized profit or loss when Deribit markets reopen, even as the migration preserves a client’s economic exposure. Coinbase classifies the tagged migration trades as administrative records.

For institutional traders, the deeper change involves replacing the International Exchange’s operating conventions with Deribit’s framework.

Perpetual contracts settle every five minutes on the International Exchange. On Deribit, settlement occurs once daily at 08:00 UTC, when session profit and loss is credited or deducted while positions remain open.

The International Exchange applies funding hourly without a rate clamp, while Deribit accrues funding continuously, reflects it in realized session PnL, quotes an eight-hour rate, and applies a damper that reduces funding to zero when the mark price falls within 0.025% of the index.

Coinbase notes that Deribit caps the eight-hour rate at 0.5% for BTC, 1% for ETH, and 5% for USDC- and USDT-related contracts in either direction.

International Exchange API endpoints will cease supporting trading after September 9, and clients require new Deribit credentials for REST, WebSocket, FIX, or SBE connections. International Exchange APIs are expected to preserve historical order and trade data for approximately 12 months.

One Venue, Several Legal Routes

The migration concentrates execution while counterparty and custody arrangements vary by institution.

For institutions holding only an International Exchange account, Coinbase Bermuda Limited will act as broker and custodian, routing orders to Deribit for execution. Institutions already trading on both the International Exchange and Deribit will use Coinbase Bermuda as custodian but trade directly with Deribit FZE as counterparty.

Some clients continuing with third-party custody will move their trading relationship to Deribit Panama, which Coinbase identifies in its entity disclosures as DRB Panama, Inc.

Execution can converge at Deribit while brokerage, custody, and counterparty exposure remain divided by client type and jurisdiction. On May 29, Commodity Futures Trading Commission staff indicated that the digital-commodity perpetuals described by Coinbase Financial Markets could be categorized as foreign futures.

Staff also issued a conditional no-action position allowing the registered futures commission merchant to post eligible customer-owned digital commodities and payment stablecoins through Coinbase Bermuda to Deribit for foreign-futures and foreign-options margin under a right of re-use.

The CFTC staff letter creates a fact-dependent intermediation route for Coinbase Financial Markets customers: the U.S.-registered firm serves as the futures commission merchant, Coinbase Bermuda acts as the foreign broker, and Deribit FZE is the foreign venue. Deribit remains a foreign venue, and its open interest stays separate from Coinbase Derivatives.

The no-action position carries nine conditions. Among them, the entities must remain wholly owned by Coinbase Global, Coinbase Financial Markets must arrange and file a Part 30 acknowledgment-style agreement, relevant customers must be able to access Deribit’s audited financial statements and SOC 2 report, and a criminal-disqualification bar applies to Deribit, Coinbase Bermuda, and their affiliates.

The firms must also maintain consolidated risk and information-security controls. The right of re-use must be permitted under applicable foreign rules and used only to margin or secure customer foreign-futures and options obligations.

Enhanced customer disclosures, collateral haircuts, and segregation requirements also apply. The letter’s scope represents a staff position tied to represented facts and specified products, and staff may modify or withdraw it.

Coinbase’s dashboard presents a combined derivatives footprint, but 96.6% of venue-level open interest in the September 1 snapshot sat on Deribit, while Coinbase Derivatives remained a much smaller, separately regulated U.S. venue.

This Deribit concentration predates the September 9 consolidation of International Exchange users, interfaces, positions, and market infrastructure.

For traders, the immediate consequences include a short period without control of positions, new APIs and records, different settlement and funding mechanics, and a client-specific counterparty configuration.

For U.S. market structure, access to the dominant venue in Coinbase’s displayed footprint can be intermediated under CFTC conditions, while the offshore liquidity pool and the onshore regulated venue remain distinct.

The 96.6% figure measures the venue location of Coinbase’s displayed derivatives positions. Asset custody and the scope of the September 9 transfer represent separate questions.

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