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DeFi glossary

Essential DeFi terminology explained. From APY to yield farming, understand the language of decentralized finance.

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A

Yield

APY (Annual Percentage Yield)

The real rate of return on an investment, accounting for compound interest.

DeFi Basics

AMM (Automated Market Maker)

A decentralized exchange mechanism that uses liquidity pools instead of order books.

Yield

APR (Annual Percentage Rate)

The yearly interest rate without accounting for compounding.

DeFi Basics

Airdrop

Free distribution of tokens to wallet addresses meeting certain criteria.

RWA

Asset Tokenization

The process of creating a digital token on a blockchain that represents ownership of a real-world asset.

RWA

Asset Originator

An entity that creates or sources the underlying assets that are tokenized for on-chain investment.

RWA

Accredited Investor

An individual or entity meeting SEC financial thresholds, qualifying them for exempt securities offerings including many tokenized RWAs.

Yield

Auto-Compounding

Automatic reinvestment of earned rewards to maximize compound interest in DeFi strategies.

Blockchain

Attestation

A validator vote confirming the validity of a proposed block in Proof of Stake consensus.

Security

Access Control

Mechanisms restricting which addresses can execute privileged smart contract functions.

Security

Admin Key

A private key with privileged access to modify protocol parameters or execute restricted functions.

Blockchain

ABI (Application Binary Interface)

The standard interface definition for interacting with smart contract functions.

Yield

AVS Operator

A validator that runs Actively Validated Services on the EigenLayer restaking network.

Yield

Activation Queue

The queue new validators wait in before becoming active on the network.

Yield

Airdrop Farming

Strategically using protocols to qualify for potential token distributions.

Yield

Auto-Compounder

A service that automatically reinvests yield to compound returns over time.

Trading

Arbitrage

Profiting from price differences of the same asset across different markets.

Blockchain

Account Abstraction

Smart contract wallets that enable programmable transaction validation.

RWA

Asset-Backed Token

A cryptocurrency token whose value is directly tied to and backed by a real-world asset held in reserve.

defi

AUM (Assets Under Management)

The total market value of assets that an investment manager handles on behalf of clients.

Blockchain

AVS (Actively Validated Service)

Protocols that use EigenLayer restaked capital for cryptoeconomic security.

B

Blockchain

Bridge

A protocol that transfers assets between different blockchains.

Governance

Bribes (DeFi)

Incentives paid to token holders for directing protocol rewards.

DeFi Basics

Bonding Curve

A mathematical formula that determines token price based on supply, enabling automated market making.

DeFi Basics

Borrow Rate

The annual interest rate charged on loans in a DeFi lending protocol.

Security

Bug Bounty

A reward program paying security researchers for discovering and reporting vulnerabilities.

Tokenomics

Burn Mechanism

A process that permanently removes tokens from circulation, reducing total supply.

Tokenomics

Buyback

A protocol using its revenue to purchase tokens from the open market, often to distribute or burn.

Blockchain

Bytecode

The compiled machine-readable code that represents a smart contract on the blockchain.

Blockchain

Block Time

The average time between new blocks being added to the blockchain.

Blockchain

Blob (Binary Large Object)

A new data type for efficient Layer 2 data posting introduced in EIP-4844.

Trading

Back-Running

Executing a transaction immediately after another to profit from its state changes.

Trading

Bid-Ask Spread

The difference between the highest buy price and lowest sell price.

Trading

Basis Trade

Profiting from the price difference between spot and futures markets.

Trading

Backwardation

A market condition where futures prices are lower than the spot price.

Yield

Boosted Points

Enhanced point accumulation through referrals, early participation, or specific actions.

Blockchain

Blob Transaction

An Ethereum transaction type for posting large data blobs at reduced cost.

Blockchain

Bundler

A service that batches account abstraction user operations for submission.

Blockchain

BFT Consensus

Byzantine Fault Tolerant consensus that works even with malicious actors.

RWA

Bankruptcy Remote

A legal structure designed to protect assets from creditors if the sponsoring entity becomes insolvent, ensuring investor assets remain accessible.

Trading

Benchmark Index

A standard reference point used to measure and compare investment performance.

C

Security

Crypto Wallet

Software or hardware that stores private keys and enables crypto transactions.

DeFi Basics

Collateral

Assets deposited as security when borrowing in DeFi.

Yield

Concentrated Liquidity

Providing liquidity within a specific price range for higher capital efficiency.

DeFi Basics

Composability

The ability of DeFi protocols to interact and build on each other.

RWA

Credit Protocol

A DeFi protocol that facilitates lending between depositors and borrowers, often with undercollateralized loans to vetted entities.

RWA

Credit Facility

A pre-approved lending arrangement providing borrowers with flexible access to capital up to a set limit.

Compliance

Custody Solution

A service that securely stores and manages digital assets on behalf of investors or institutions.

DeFi Basics

Cooldown Period

A waiting period required before certain protocol actions can be executed or completed.

Security

Circuit Breaker

Automated protection that halts operations when predefined risk thresholds are exceeded.

Trading

Cross Margin

Margin mode that shares collateral across all positions to avoid liquidation.

Trading

Call Option

A contract giving the right to buy an asset at a specified price before expiration.

Trading

Covered Call

Selling a call option while holding the underlying asset as cover.

Trading

Cash-and-Carry Arbitrage

Buying spot and selling futures to capture the basis until expiration.

Trading

Contango

A market condition where futures prices are higher than the spot price.

Yield

Correlation Penalty

Enhanced slashing penalties when multiple validators are slashed simultaneously.

Yield

Churn Limit

Maximum validators that can enter or exit per epoch to maintain network stability.

Yield

Campaign

A targeted incentive program designed to encourage specific user behaviors.

Blockchain

Challenge Period

The time window during which optimistic rollup transactions can be disputed.

Blockchain

Consensus Mechanism

The method by which network participants agree on blockchain state.

Security

Counterparty Risk

The risk that the other party in a transaction will fail to fulfill their obligations.

Security

Custody Risk

The risk of losing assets due to custodian failure, theft, hacks, or operational errors by the entity holding assets on your behalf.

defi

Crypto Allocator

An entity or individual responsible for deploying capital across crypto investment opportunities.

D

DeFi Basics

DeFi (Decentralized Finance)

Financial services built on blockchain without traditional intermediaries.

Trading

DEX (Decentralized Exchange)

A cryptocurrency exchange that operates without a central authority.

Governance

DAO (Decentralized Autonomous Organization)

An organization governed by smart contracts and token holder votes rather than traditional management.

RWA

Default Rate

The percentage of loans in a portfolio that borrowers fail to repay as agreed.

Yield

Deposit Cap

A maximum limit on total assets that can be deposited into a DeFi protocol or strategy.

Blockchain

Delegator

A token holder who stakes their assets through a validator without running infrastructure.

Blockchain

Double Signing

A validator offense of signing two conflicting blocks or messages at the same blockchain height.

Blockchain

Downtime Penalty

Penalties applied to validators for being offline or failing to participate in consensus.

Governance

Delegate (Governance)

A governance participant who votes on behalf of token holders who have delegated their voting power.

Blockchain

Data Availability

Ensuring transaction data is accessible for verification and fraud proofs.

Trading

Delta (Options)

Measures how much an option price changes for a $1 move in the underlying asset.

Trading

Delta-Neutral Strategy

A trading strategy designed to profit regardless of market direction by hedging directional exposure.

Security

Diamond Pattern

A modular proxy architecture allowing multiple implementation contracts called facets.

Security

Denial of Service

Attacks that prevent legitimate users from accessing or using protocol functions.

Trading

Depth of Market

The volume of orders at each price level in the order book.

Blockchain

Danksharding

Ethereum's planned data sharding approach to dramatically increase throughput.

lending

Default Risk

The probability that a borrower fails to repay principal or interest on a loan, resulting in losses for lenders in DeFi lending protocols.

I

Yield

Impermanent Loss

The temporary loss of value when providing liquidity compared to simply holding assets.

RWA

Institutional DeFi

Decentralized finance infrastructure designed to meet the compliance, security, and operational needs of institutional investors.

Security

Invariant

A condition that must always remain true regardless of what operations are performed on a system.

Tokenomics

Inflation Rate

The percentage increase in token supply over time, typically from staking rewards or emissions.

Blockchain

Immutable Contract

A smart contract whose code cannot be changed after deployment.

Trading

Index Price

An aggregate price from multiple exchanges used as a fair market reference.

Trading

Initial Margin

The collateral required to open a leveraged trading position.

Trading

Isolated Margin

Margin mode where only allocated collateral is at risk for a specific position.

Trading

Implied Volatility

The market's forecast of likely price movement, derived from options prices.

Security

Integer Overflow

A vulnerability where arithmetic operations exceed maximum values, causing numbers to wrap around to zero.

Security

Integer Underflow

A vulnerability where subtracting from zero causes numbers to wrap around to maximum values.

Security

Implementation Contract

The contract containing actual logic that a proxy delegates calls to via delegatecall.

Security

Invariant Testing

Testing methodology that verifies properties that must always hold regardless of transaction sequences.

Security

Infinite Mint Attack

Exploiting vulnerabilities to create unlimited tokens, destroying their value.

Yield

Inactivity Leak

Gradual balance reduction for validators who fail to participate in consensus.

Yield

Implied APY

The annualized return implied by the market price of yield tokens.

Blockchain

Instant Finality

Immediate and irreversible transaction confirmation.

custody

Institutional Grade

Crypto infrastructure meeting rigorous standards for security, compliance, and reliability required by professional investors and regulated financial institutions.

P

DeFi Basics

Protocol

A set of smart contracts that provide a specific DeFi service.

Blockchain

Proof of Stake (PoS)

A consensus mechanism where validators stake tokens to secure the network.

Yield

Points (DeFi Points)

Off-chain rewards that may convert to tokens in future airdrops.

Trading

Perpetual Futures (Perps)

Futures contracts with no expiration date, popular in crypto trading.

RWA

Private Credit

Non-bank lending to businesses or individuals, now accessible on-chain through tokenized credit protocols.

Yield

Performance Fee

A fee charged by DeFi protocols as a percentage of the profits generated for users.

Governance

Protocol Treasury

On-chain funds owned and controlled by a protocol's governance system.

Blockchain

Price Feed

A data stream providing real-time asset prices to smart contracts for DeFi operations.

Blockchain

Proxy Contract

A contract that delegates calls to an implementation contract, enabling upgradeability.

Blockchain

Plasma

An early Layer 2 scaling framework using child chains anchored to Ethereum.

Trading

Price Impact

The effect a trade has on the market price due to its size relative to available liquidity.

Trading

Perpetual Futures

Derivative contracts that track an underlying asset price with no expiration date.

Trading

Position Size

The total value or quantity of an asset in a trading position.

Trading

Put Option

A contract giving the right to sell an asset at a specified price before expiration.

Security

Proxy Pattern

A smart contract architecture enabling upgrades by separating storage from logic through delegatecall.

Security

Pause Function

An admin-controlled mechanism to temporarily halt contract operations during emergencies.

Security

Private Mempool

A transaction pool hidden from public view to prevent front-running and MEV extraction.

Yield

Principal Token

A token representing the underlying asset that can be redeemed at maturity.

Yield

Points Farming

Accumulating protocol loyalty points by providing liquidity or using services.

Trading

Price Discovery

The process by which markets determine the fair price of an asset.

Blockchain

Proto-Danksharding

An intermediate step toward full danksharding using blob transactions.

Blockchain

Paymaster

A contract that sponsors gas fees for account abstraction transactions.

Blockchain

Probabilistic Finality

Finality that increases in certainty as more blocks are added.

R

Security

Rug Pull

A scam where developers abandon a project and steal user funds.

Trading

Rebalancing

Adjusting portfolio allocations back to target percentages.

Blockchain

Rollup

A Layer 2 scaling solution that bundles transactions off-chain for settlement on the main chain.

Yield

Restaking

Reusing staked assets to secure additional protocols, earning extra yield.

Yield

Real Yield

Protocol revenue distributed to token holders, not inflationary emissions.

RWA

Real World Assets (RWA)

Traditional financial assets like bonds, real estate, and commodities that are tokenized and brought onto blockchain networks.

RWA

Reg D Offering

SEC exemption allowing companies to raise capital from accredited investors without full public registration.

RWA

Redemption Mechanism

The process by which tokenized asset holders can exchange their tokens for underlying value or assets.

Governance

Rage Quit

A mechanism allowing minority token holders to exit with their share of treasury before unwanted proposals execute.

Security

Rate Limiting

Restricting the frequency or volume of operations to prevent attacks and manage risk.

Blockchain

Reorg (Chain Reorganization)

When a blockchain replaces recent blocks with an alternative chain history.

Security

Reentrancy

A vulnerability where a contract can be called again before its first execution completes.

Blockchain

Rollup Bridge

The smart contracts enabling asset transfers between Layer 1 and a rollup.

Trading

Range Order

A concentrated liquidity position functioning as a limit order with fee earning.

Trading

Roll Yield

The profit or loss from rolling futures positions from one contract to the next.

Security

Reentrancy Attack

An exploit where a malicious contract repeatedly calls back into a vulnerable function before state updates complete.

Security

Responsible Disclosure

The practice of privately reporting vulnerabilities to affected parties before public disclosure.

Yield

Restaking Points

Off-chain loyalty metrics tracking restaking activity for potential future airdrops.

Yield

Referral Points

Points earned by bringing new users to a protocol through referral programs.

Yield

Retroactive Airdrop

Token distributions rewarding users for past protocol interactions.

Security

Rug Pull

A crypto scam where developers abandon a project and take investor funds.

RWA

Real Estate Tokenization

The process of dividing property ownership into digital tokens, enabling fractional investment in real estate on blockchain.

RWA

Revenue-Based Financing

A lending model where repayment is tied to a percentage of business revenue, now available through tokenized credit protocols.

RWA

Reg D Exemption

An SEC exemption allowing companies to raise capital from accredited investors without full public registration, commonly used for tokenized securities.

RWA

Redemption Risk

The risk that investors cannot convert tokenized assets back to underlying assets or fiat currency due to liquidity constraints or issuer issues.

S

Trading

Slippage

The difference between expected and actual price when executing a trade.

Yield

Staking

Locking up cryptocurrency to support network operations and earn rewards.

Blockchain

Smart Contract

Self-executing code on a blockchain that automatically enforces agreement terms.

Security

Seed Phrase (Recovery Phrase)

A series of words that can restore access to a cryptocurrency wallet.

DeFi Basics

Stablecoin

A cryptocurrency designed to maintain a stable value, usually pegged to USD.

Security

Smart Contract Audit

A comprehensive security review of smart contract code by specialized firms to identify vulnerabilities.

Security

Self-Custody

Holding your own private keys rather than trusting a third party.

RWA

Senior Tranche

The highest-priority layer in a structured credit product, receiving payments first but earning lower yields.

Compliance

Securities Law

Legal regulations governing the issuance and trading of investment contracts, applicable to many tokenized assets.

Yield

Staking Pool

A collective staking arrangement where multiple participants combine assets to meet validator requirements.

Security

Self-Custody Staking

Staking cryptocurrency while maintaining complete control of private keys and funds.

Blockchain

Slashing

A penalty mechanism that destroys a portion of staked tokens when validators violate protocol rules.

Blockchain

Slot

The smallest time unit in blockchain consensus during which a block can be proposed.

Governance

Snapshot Voting

A gasless off-chain voting system using signed messages to record governance decisions.

Blockchain

State Trie

The data structure storing all Ethereum account balances, nonces, and smart contract storage.

Blockchain

Sequencer

The entity that orders and batches transactions on a Layer 2 network.

Blockchain

State Channel

An off-chain scaling technique where parties transact privately and settle on-chain.

Trading

Sandwich Attack

An MEV attack placing transactions before and after a target to profit from price impact.

Trading

Stop-Loss

An order that automatically sells when price falls below a threshold.

Trading

Slippage Tolerance

The maximum acceptable difference between expected and actual trade execution price.

Trading

Strike Price

The predetermined price at which an option can be exercised.

Security

Storage Collision

A vulnerability where proxy and implementation contracts overwrite each other's storage slots.

Yield

Staking Derivative

A token representing staked assets that can be traded or used in DeFi.

Yield

Sybil Resistance

Mechanisms preventing users from creating multiple accounts to game rewards.

Yield

Season

A defined time period during which specific rewards or points programs are active.

Trading

Short Position

A trade betting that an asset's price will decrease.

Trading

Statistical Arbitrage

Using quantitative models to identify and exploit pricing inefficiencies.

RWA

Security Token

A blockchain token representing ownership in a regulated security such as stocks, bonds, or investment contracts.

RWA

SPV (Special Purpose Vehicle)

A legal entity created to isolate financial risk by holding specific assets separately from the parent company, commonly used in RWA tokenization.

defi

Synthetic Assets

Blockchain tokens that track the price of real-world assets like stocks, commodities, or currencies without requiring ownership of the underlying asset.

Trading

Sharpe Ratio

A measure of risk-adjusted return that compares excess returns to volatility.

T

DeFi Basics

TVL (Total Value Locked)

The total amount of crypto assets deposited in a DeFi protocol.

Tokenomics

Tokenomics

The economic design and mechanics of a cryptocurrency token.

RWA

Tokenized Treasuries

US Treasury bonds and bills represented as blockchain tokens, providing on-chain access to government-backed yield.

RWA

Tokenized Securities

Traditional financial securities like stocks and bonds issued and traded as blockchain tokens under regulatory compliance.

RWA

Treasury Token

A blockchain token representing ownership in US Treasury securities or a fund holding treasuries.

RWA

T-Bill Token

A tokenized representation of short-term US Treasury bills, offering near risk-free yields on blockchain.

Trading

TWAP (Time-Weighted Average Price)

A pricing method that averages asset prices over time to resist short-term manipulation.

Tokenomics

Token Emission

The scheduled release of new tokens into circulation, often used as protocol incentives.

Security

Timelock

A smart contract that delays execution of administrative actions by a set period.

Yield

Tick

The smallest price interval between adjacent positions in concentrated liquidity AMMs.

Trading

Take-Profit

An order that automatically sells when price reaches a target profit level.

Trading

Theta (Options)

Measures the daily rate of time decay in an option value.

Security

Transparent Proxy

A proxy pattern that prevents function selector clashes by routing admin and user calls differently.

Security

Timelock Contract

A contract that delays execution of transactions, giving users time to react to changes.

Trading

Trading Volume

The total value of assets traded within a specific time period.

Trading

Taker Fee

The fee charged for orders that remove liquidity from the order book.

Trading

Triangular Arbitrage

Exploiting price discrepancies between three trading pairs.

Blockchain

Throughput

The number of transactions a network can process per second.

RWA

Tokenization

The process of converting rights to an asset into a digital token on a blockchain, enabling fractional ownership and programmable transfers.

V

Blockchain

Validator

A node that verifies transactions and produces blocks in a proof-of-stake blockchain.

Yield

Vault

A smart contract that automates yield strategies for deposited assets.

Tokenomics

Vesting

A schedule that gradually releases locked tokens over time.

Governance

Vote-Escrow Token (veToken)

Tokens locked for governance power and protocol benefits.

Yield

Vault Strategy

A defined investment approach deployed by a DeFi vault to generate yields on deposited assets.

Governance

Voting Power

The weight of a governance participant's vote, typically proportional to token holdings or stake.

Governance

Veto

The power to reject or block governance proposals, often held by security councils or guardians.

Blockchain

Validity Proof

A cryptographic proof that a batch of transactions was executed correctly.

Blockchain

Validium

A ZK rollup variant that posts data off-chain for lower costs with different security tradeoffs.

Blockchain

Volition

A hybrid L2 design allowing users to choose between on-chain and off-chain data availability.

Trading

Vega (Options)

Measures how much an option price changes for a 1% change in implied volatility.

Yield

Validator Exit Queue

The queue validators must wait in to unstake and withdraw their staked ETH.

Yield

Voluntary Exit

When a validator chooses to stop validating and begins the withdrawal process.

Yield

Variable Yield

Returns that fluctuate based on market conditions and protocol performance.

Trading

Volatility

The degree of price variation over time, measuring market uncertainty.

Blockchain

Validator Set

The group of validators currently active in securing the network.