QR Code
A machine-readable code made of black-and-white squares that encodes information such as wallet addresses, transaction requests, or authentication data. Commonly used in crypto wallets for quick scanning and transfers.
Qtum
Qtum is a Proof-of-Stake blockchain that combines elements of Bitcoin’s transaction model with smart contract functionality. It is designed to support decentralized applications while allowing compatibility with virtual machine environments such as the Ethereum Virtual Machine (EVM).
Qualitative Analysis
Qualitative analysis is a method of evaluating an asset, company, or project using non-numerical factors. These may include the team, product quality, market position, roadmap, community strength, or overall business conditions. It is often used together with quantitative analysis to get a fuller view of a potential investment or trading opportunity.
Quant Zone (FTX Exchange)
A strategy builder tool formerly offered by FTX that allowed users to create, automate, and share algorithmic trading strategies using conditional logic.
Quantitative Analysis
Quantitative analysis uses numbers, statistics, formulas, and data models to evaluate markets, assets, or trading strategies. Traders may use quantitative analysis to study price movement, volatility, performance, risk, and historical patterns before making decisions.
Quantitative Easing (QE)
A monetary policy used by central banks to add more money into the financial system, usually by buying government bonds or other assets. QE is often used during weak economic conditions to support lending, spending, and market liquidity. In crypto markets, traders may watch QE because increased liquidity can affect demand for risk assets.
Quantitative Tightening (QT)
A monetary policy used by central banks to reduce money supply or liquidity in the financial system. This usually happens when a central bank lets assets mature without replacing them or sells assets it previously bought. QT can make financial conditions tighter, which may affect risk assets such as stocks and crypto.
Quantum Bit (Qubit)
The basic unit of quantum information. Unlike classical bits, which are either 0 or 1, qubits can represent both 0 and 1 simultaneously through superposition.
Quantum Computing
An emerging form of computation based on the principles of quantum mechanics. Quantum computers can process vast amounts of data simultaneously, potentially threatening classical cryptographic systems used in blockchain.
Quasar Smart Contract (OMG Foundation)
A smart contract framework developed by the OMG Foundation (formerly OmiseGO) to address scalability and interoperability issues on layer-2 networks.
Query
A query is a request for information from a system, database, website, or application. In crypto and trading tools, queries may be used to retrieve market data, account information, transaction records, or other requested data from a connected system.
Quorum (Governance)
The minimum number of participants required in a decentralized organization or governance process to make a vote or decision valid.
Quorum Blockchain
Quorum is an enterprise-focused blockchain based on Ethereum technology. It was originally developed by J.P. Morgan and later acquired by ConsenSys. Quorum is designed for business use cases that may require permissioned access, privacy controls, and blockchain-based transaction processing.