Derivatives and Crypto Glossary: Futures, Options, Perpetuals and DeFi
Derivatives and cryptocurrency markets use specialised language to describe contractual exposure, settlement, leverage, digital ownership and protocol mechanics. A futures contract, call option and cryptoasset token are fundamentally different instruments. Understanding contract terms and operational rules matters as much as interpreting a price chart.
This glossary explains futures, options, margin, perpetual contracts, stablecoins, digital wallets, blockchain and tokenomics. It highlights important differences between traditional centralised markets and blockchain-based markets without treating a particular structure as necessarily safe or profitable.
Derivatives and crypto glossary: essential definitions
Automated market maker
A decentralised trading mechanism that uses programmed pricing and liquidity-pool rules instead of a conventional central limit order book. Its behaviour depends on the pool design, reserves, fees and transaction order.
Backwardation
A futures-curve configuration where a nearby contract is priced above a deferred contract under a defined comparison. It can reflect inventory conditions or other factors and is not a guaranteed positive return from rolling.
Basis
A price difference between economically related cash and derivatives instruments under a stated convention. The sign, tenor and deliverability matter; basis may remain unstable during financing stress.
Blockchain
A data structure and network mechanism for recording transactions in linked blocks or related ledger arrangements. Different networks use different validation, governance and security systems, so the label does not establish reliability.
Bridge
A system for transferring or representing assets or information between blockchain networks. Bridge designs can introduce smart-contract, custody, validation and operational vulnerabilities.
Call option
A contract granting its buyer the right, but not generally the obligation, to buy an underlying under specified terms. The seller’s obligations and potential loss depend on whether the position is covered and other factors.
Central clearing
An arrangement in which a clearing organisation intermediates eligible obligations according to rules and collateral requirements. Central clearing can reduce some counterparty exposures while concentrating risk-management responsibilities.
Collateral
Assets posted to secure obligations. Their liquidity, valuation, haircuts and availability matter, and additional collateral may be demanded after market losses or changing requirements.
Consensus mechanism
The process by which blockchain participants agree on valid ledger state under the network’s rules. Proof of work and proof of stake have different economic incentives, attack surfaces and resource requirements.
Contango
A futures structure in which deferred contracts trade above near-term references under a stated comparison. It is not sufficient to predict the underlying spot price path or the investor’s realised roll return.
Contract multiplier
A factor converting contract price moves into cash gains and losses. It is essential for futures and options sizing; a tick is not a fixed monetary amount across all instruments.
Counterparty risk
Potential loss if a contractual party fails to meet its obligations. Exchange clearing, bilateral collateral and decentralised smart contracts each address and create different forms of exposure.
Crypto custody
The systems controlling access to and transfer of cryptoassets, including exchange custody, institutional custodians and self-custody. Legal ownership, security and recovery options vary considerably.
Decentralised exchange
A platform or protocol enabling digital-asset swaps through on-chain mechanisms or related systems. Decentralised execution does not eliminate smart-contract, price-manipulation, liquidity or operational risks.
Delta
A derivative sensitivity describing the approximate effect of a small underlying price change on option value, holding other inputs constant. Delta can change rapidly as prices and time evolve.
Derivatives
Financial contracts whose economic value depends partly on an underlying asset, index, rate, event or other reference. They can hedge risk or create leverage, but contractual obligations are product-specific.
Exercise price
The strike price at which an option can be exercised according to its terms. It is distinct from the premium paid and does not by itself determine total net profit.
Expiration
The contractual time when a derivative’s rights or obligations end or change under its settlement rules. Product conventions for trading cutoff, exercise and settlement differ.
Forward contract
An agreement to exchange an asset or cash flow at a future date on agreed terms, frequently negotiated OTC. Credit, settlement and customisation features differ from standardised futures.
Fully diluted valuation
A token valuation metric multiplying a reference price by a defined potential total supply. It may be misleading if supply assumptions are wrong or large additional supply is not currently liquid.
Funding rate
A recurring payment mechanism in many perpetual derivative contracts that transfers value between long and short positions under exchange rules. The rate varies and does not ensure that prices converge safely.
Futures contract
A standardised derivative traded under an exchange’s contract rules, typically with margin and settlement arrangements. The price reflects the specified underlying, expiry, delivery and financing context.
Gas fee
A blockchain transaction fee associated with computational or network resource usage. Its denomination and variation depend on the protocol; it is not necessarily proportional to the value transferred.
Gamma
The sensitivity of an option’s delta to changes in underlying price. It makes option exposures nonlinear and can generate rapid hedging needs as underlying prices move.
Impermanent loss
A term used for an AMM liquidity provider’s relative outcome compared with holding specified assets, under a chosen comparison. Fee income, price paths and pool design determine actual economic results.
Initial margin
The collateral requirement for opening or supporting a leveraged derivative exposure. It is not the price of the contract or a guaranteed maximum loss.
Intrinsic value of an option
The immediate exercise value under applicable terms, often the positive difference between underlying and strike for a call. Market option prices can also contain time value.
Layer 2
A system intended to process transactions or computations in relation to an underlying blockchain. Security assumptions, withdrawal conditions and interoperability differ across implementations.
Leverage
Exposure larger than capital committed, often obtained through derivatives or borrowing. Even small underlying moves can trigger outsized account changes, margin calls or liquidation.
Liquidation
The forced reduction or closing of exposure after margin or other rules are breached. Derivative markets may use mark-price or other trigger conventions; execution and losses can be highly uncertain.
Liquidity pool
Assets supplied to a decentralised protocol to support trading or other functions. Liquidity providers can face smart-contract failures, price divergence and fee-income uncertainty.
Maintenance margin
Collateral required to keep a derivatives position open under its risk rules. Falling below a threshold can lead to urgent replenishment or forced closing depending on the exchange.
Mark price
A reference valuation used by certain derivatives venues for margin and liquidation calculations. It may deliberately differ from the last traded price, so trigger rules need verification.
Open interest
Outstanding derivative contracts that remain open under market rules. It differs from the number of contracts traded during a period and does not inherently indicate whether future prices will rise.
Oracle
A system for supplying external information, such as prices, to a blockchain contract. Manipulated, stale or unavailable oracle data can affect settlement, collateral and liquidations.
Perpetual future
A derivative intended to maintain exposure without a conventional fixed expiry, often using periodic funding adjustments. Its contractual design varies across venues and does not eliminate liquidation risk.
Private key
Cryptographic secret information used to authorise actions for a blockchain account under a protocol. Losing control of it can make assets inaccessible or enable unauthorised transfers.
Proof of stake
A consensus family in which validators place economic stakes under network rules. Staking rewards, penalties, custody and validator concentration create risks distinct from price volatility.
Proof of work
A consensus method using computational work to secure participation and validation under protocol rules. Its energy, hardware and attack considerations differ from proof-of-stake networks.
Put option
A contract giving the buyer the right, but generally not the obligation, to sell an underlying under specified terms. Profit and loss depend on premium, expiry, exercise conditions and market movements.
Roll yield
A component of maintaining futures exposure through expiry changes under a defined methodology. It interacts with cash-price changes, collateral returns, contract pricing and actual execution costs.
Settlement
The fulfilment of contractual obligations, which can involve cash payment or delivery. Futures, listed options, OTC contracts and blockchain transactions have distinct settlement mechanisms.
Smart contract
Code executed within a blockchain or associated system under defined rules. It can automate contractual-like processes but is subject to programming, governance, oracle and economic-design failures.
Stablecoin
A cryptoasset designed to reference another asset or value, often a fiat currency. The legal claim, reserve arrangement, redemption rights and operational framework determine how credible the price peg is.
Staking
Committing eligible assets or validation rights to a network under its proof-of-stake arrangements, potentially receiving rewards. Lockups, slashing, token-price changes and third-party custody can create losses.
Strike price
The agreed exercise or reference level for an option’s contractual rights. A call with strike above today’s market can still have value before expiration because future prices are uncertain.
Theta
An option sensitivity describing the effect of passage of time under a pricing model, other inputs held constant. Theta is not a fixed fee or guaranteed daily P&L.
Token unlock
A scheduled or condition-based release of previously restricted digital-asset supply. Additional tradable supply can influence liquidity, but the market impact depends on demand, ownership and expectations.
Tokenomics
The rules and incentives affecting a token’s creation, distribution, use and potential supply. Tokenomics alone does not guarantee economic demand or the value of a network.
Total value locked
A metric used to estimate assets deposited or committed in certain decentralised protocols. Pricing, double-counting and leverage conventions can make comparisons difficult.
Variation margin
Payments or collateral changes reflecting realised or marked-to-market price movements according to clearing rules. It differs from initial margin and affects liquidity needs even before expiry.
Vega
An option sensitivity to changes in the implied-volatility input, other factors held constant. It can interact with delta, gamma and changes in volatility skew.
Vesting schedule
An arrangement that restricts when holders can obtain, transfer or exercise rights over tokens or equity-like interests. A vesting date is not a prediction that holders will sell immediately.
Wallet
Software, hardware or other systems used to access blockchain accounts or manage cryptographic credentials. A wallet does not necessarily store coins in the same way a physical wallet stores cash.
Worked example: futures contract size and price risk
Suppose a hypothetical futures contract has a multiplier of £10 per index point, and its index reference moves from 5,000 to 4,900. The 100-point adverse change implies a £1,000 contract loss for a long position before trading fees, interest and other adjustments. The capital initially posted as margin might be much smaller than the contract’s notional exposure, but that margin is collateral rather than a loss ceiling.
If the trader holds three contracts, the same price change scales the simplified loss to £3,000. A correct risk calculation must use the actual contract’s multiplier, permitted tick size, margin rules, clearing arrangements and settlement currency. Futures contracts differ in whether they require cash settlement, physical delivery or other procedures when held through expiry.
Worked example: a call option and the difference between buyer and seller
Imagine a hypothetical European-style call option with strike £100 and a £5 premium per underlying share, ignoring fees. If the underlying is worth £120 at expiry, the call’s intrinsic value is £20 and the simple buyer profit is £15 per share of exposure after subtracting the £5 premium. If the underlying finishes at £95, the call expires without intrinsic value and the buyer loses the £5 premium, assuming no earlier trade or other contractual complication.
For the writer of a naked call, the risk profile is different: the premium received is limited, while losses can grow substantially as the underlying rises. Selling an option is therefore not simply ‘earning a premium’; it creates obligations that can require collateral and expose the writer to large or potentially unlimited losses depending on the structure.
Why futures, forwards and perpetuals are not interchangeable
Exchange-traded futures generally use standardised contract terms, centrally managed clearing arrangements and mark-to-market processes. Bilateral forwards can be customised for amount and maturity but create different counterparty, collateral and legal issues. Perpetual derivatives have no conventional fixed expiry and often use variable funding transfers intended to help anchor the contract price to an index or spot reference.
Funding payments do not guarantee safe convergence between perpetual and spot prices. Liquidation engines, index construction, mark-price rules, insurance funds and venue solvency can all affect outcomes. A position that seems to replicate a spot asset may produce different cash flows and could be forcibly closed even while the spot holding remains unchanged.
Worked example: token supply and fully diluted valuation
Suppose a fictional token is priced at £2, with 50 million units in current circulation and a defined maximum potential supply of 200 million units. Its simplified circulating market value is £100 million, while fully diluted valuation is £400 million. These figures are mechanical price-times-supply calculations. Neither is a cash-flow valuation or evidence that the additional 150 million tokens can be sold at today’s marginal trading price.
The release schedule matters. If substantial tokens become transferable in future periods, expected supply can change liquidity conditions and holder incentives. At the same time, demand, restrictions, actual float, governance rules and the possibility of altered token issuance determine whether such metrics are meaningful. A high fully diluted figure is not a guaranteed future market capitalisation.
Stablecoins, reserves and redemption rights
A token targeting one unit of currency does not automatically provide a legally enforceable claim on one unit of cash. The issuer, reserve composition, custody structure, disclosures, redemption eligibility and governing law matter. Market prices can move away from a reference because of uncertainty about backing, technical disruption, limited redemption access or market-wide demand for liquidity.
Stablecoin risk should be distinguished from ordinary spot currency risk. Even if the fiat reference does not change, the holder may face issuer failure, operational outage, asset freeze or a break in the redemption mechanism. A third-party exchange’s displayed stablecoin price is not proof of immediate redemption at par by every holder.
Wallets, private keys and custody risk
Self-custody can remove a particular centralised intermediary but places responsibilities on the user for key management, transaction verification and recovery. Exchange custody delegates some operations but introduces platform, legal, cyber and insolvency exposure. Different arrangements may involve insurance claims, segregation rules or recovery processes that must be verified rather than assumed.
A blockchain transaction that is final under protocol rules can be extremely difficult or impossible to reverse after a mistaken destination or stolen key. Cross-chain bridges and smart contracts add software and governance dependencies. An educational analysis of tokens should therefore include custody and operational risks alongside price, supply and liquidity.
Trading and liquidity risks in decentralised markets
A liquidity pool can appear to contain substantial assets yet provide poor execution for a particular swap because of pool composition, concentrated liquidity or price impact. Automated market makers may expose providers to outcomes different from simply holding the underlying assets, with fee income only partially offsetting the difference. Oracles can fail or be manipulated, causing liquidations and erroneous contract behaviour.
Blockchain congestion and transaction ordering can also change realised costs. Gas fees, slippage limits, failed transactions and execution sequencing influence the difference between an estimated quote and the final settlement. Trading volume and total value locked are useful descriptive statistics only when their definitions and potential double-counting are understood.
Explore related glossary guides
Definitions are most useful when connected to neighbouring concepts. See Trading Glossary A–Z, Trading Risk Management, Trading Costs, Forex Trading for complementary market terms, risk considerations and examples.
Frequently asked questions
Is initial futures margin the maximum possible loss?
No. Margin is collateral against price movements and risk obligations. Losses can exceed the amount originally posted, depending on the instrument and applicable protections.
Is a call option always low risk because the premium is fixed?
A purchased ordinary call has a premium-based maximum loss under its contractual assumptions, but writing an uncovered call has a very different and potentially severe risk profile. The full option position must be identified.
Can a perpetual contract be held without any funding cost?
Not necessarily. Funding rates can fluctuate and transfer value in either direction. Trading, margin, liquidation and other venue charges can also apply.
Is a stablecoin the same as holding bank deposits?
No. Legal claims, reserve risks, regulatory protections and redemption procedures vary. A price target does not create identical protections to a bank deposit.
Does token market capitalisation establish fundamental value?
No. It is a mechanical calculation from marginal price and a supply assumption. It does not demonstrate liquid realisable value, cash-flow rights or sustainable demand.
Related Education guides
Explore Commodity Futures, Margin and Expiry, Crypto Tokenomics and FDV, Stablecoins and Depegging, and Crypto Wallets and Custody.
Sources and verification
See the CME Group glossary for futures and options terminology and the FCA’s information on high-risk leveraged products. For any individual digital asset or derivative, the governing contract, official protocol specification and platform documentation are essential.
Important notice: General education only, not a solicitation or recommendation to buy, sell or hold a derivative or cryptoasset. Complex products can produce severe or total losses.