Immediate or Cancel

Action

Immediate or Cancel (IOC) represents a conditional order execution protocol utilized across cryptocurrency exchanges, options markets, and financial derivatives platforms. This order type prioritizes immediate fulfillment, instructing the trading system to execute the entire order quantity at the best available price, provided sufficient liquidity exists. Any portion of the order that cannot be immediately filled is automatically cancelled, preventing partial fills and ensuring the trader’s intended exposure is either fully realized or not executed at all. Consequently, IOC orders are frequently employed by traders seeking precise control over entry or exit points, minimizing the risk of unintended price slippage.