O

Crypto, trading and market making terms from the Motion Trade glossary. Each definition explains the term in plain language and links to related guides.

Off-Chain

Transactions or data processed outside the blockchain to increase speed and efficiency.

On-Chain

Transactions or data that are recorded and verified directly on the blockchain.

Oracle

A service that provides real-world data to smart contracts on the blockchain.

Order Book

A list of buy and sell orders organized by price, used by exchanges to match trades.

Orderflow

The stream of buy and sell orders as they enter the market, used in trading analysis.

OTC (Over-the-Counter)

Direct trading of assets between parties without using an exchange.