Deribit review: the crypto options market is basically one venue

There is no meaningful competition in crypto options. Deribit has held something in the region of 80% of BTC and ETH options open interest for years, and the practical consequence is that if you want to buy a March 120,000 call and have someone actually quote you a price for it, this is where you go.

Positions approaching monopoly usually produce lazy products. This one has not, which is the interesting part and the reason this review scores it as highly as it does.

How options are priced

The options fee is 0.03% of the underlying asset value, with a cap at 12.5% of the option's premium. That cap is the single design decision that makes the venue usable for retail. Without it, buying a far out-of-the-money option worth $4 would cost more in fees than the option does — which is exactly the failure mode on venues that charge a flat percentage of notional and have not thought about the wings.

Futures and perpetuals are priced conventionally, around 0% maker and 0.05% taker on the linear contracts, with block-trade pricing available for size. Settlement fees on expiry are charged on the same capped basis.

Portfolio margin is the real product

Standard margin treats each leg separately. If you are long a call and short a call above it, a naive system charges margin as though both could lose simultaneously, which they cannot — the structure has a defined maximum loss and a competent risk engine should know that.

Deribit's portfolio margin models the position as a whole across a grid of price and volatility scenarios and charges against the worst realistic outcome. For any structured trade — spreads, condors, calendars, delta-hedged volatility positions — that is the difference between a viable strategy and one that is dead on capital efficiency before it starts.

Crypto-margined, and what that does to you

Collateral is BTC or ETH, not dollars. This is not a detail. If you are short a put on BTC, your collateral is falling at exactly the moment your position is losing, and the margin requirement is rising to meet it. The non-linearity is real, it compounds, and it has liquidated people who modelled the position purely in dollar terms.

Crypto-margined options are two positions, not one: the option and the collateral. Model both or the liquidation engine will do it for you.

Liquidations

The liquidation engine is incremental — it reduces a position progressively rather than closing the whole thing at market — and there is an insurance fund that absorbs shortfalls before socialised losses are considered. During the sharp moves of the last few years the system has behaved as documented, which is considerably more than several competitors managed in the same conditions.

Insurance fund balances are published, which lets you form your own view about how much cushion exists before a socialised-loss event becomes plausible.

The Coinbase acquisition

Coinbase agreed to acquire Deribit in 2025. On paper this is good for the venue: a listed US acquirer, deeper capital, and a route into regulated jurisdictions that a Panama-registered derivatives exchange could not reach on its own.

It also introduces uncertainty. Product integration, KYC posture, which jurisdictions retain access, and whether the crypto-margined model survives a US parent's compliance review are all open questions. Nothing has degraded yet, and the trading product has continued to operate unchanged through the transition.

Who it is not for

• Anyone who has not traded options before. The interface will let you sell a naked strangle in two clicks and will not ask whether you meant to.

• Traders who need dollar-margined positions to keep their risk linear and their mental arithmetic simple.

• US retail, who are not served directly.

Verdict

What the surface actually looks like

Deribit quotes weekly, monthly and quarterly expiries with strikes spaced closely enough that a real volatility surface exists. That sounds unremarkable until you try to build the same structure anywhere else and discover there is no bid on the strike you need.

The practical consequence is that strategies which are textbook elsewhere — calendar spreads, risk reversals, delta-hedged short volatility — are actually executable here at prices that do not eat the edge. It is the only crypto venue where that sentence is true, and it is why the institutional flow has not moved despite repeated attempts by competitors to attract it.

Settlement and index construction

Contracts settle against an index built from a basket of spot venues rather than a single exchange's print, with published rules for how outlying sources are excluded. That design is what prevents a manipulated price on one thin venue from triggering settlements across the entire options book.

The index methodology is public and worth reading once if you hold anything to expiry. Most people discover how their contract settles on the day it settles, which is the wrong day to find out that the index excluded the exchange you were watching.

Score: 8.8 — the highest in this category. It earns that on execution quality, margin design and a fee cap that shows somebody thought about the small trader rather than only the desk. The mark against it is structural rather than operational: one venue holding an entire market's options liquidity is a systemic risk that nobody, including Deribit, has a plan for.