What it is
A trading halt is a temporary pause in the buying and selling of a particular stock or other security on an exchange. Regulators or exchanges implement halts to address significant news, correct order imbalances, or investigate potential market manipulation. This mechanism allows market participants to absorb new information or for the exchange to ensure fair and orderly trading conditions before resuming activity.
Halts often occur when a company announces material news, such as a merger, significant earnings surprise, or regulatory action, to prevent speculative trading. They also activate automatically if a stock's price moves too rapidly, triggering circuit breakers. When a halt is announced, all trading in that security stops until the exchange determines it's appropriate to resume, which is typically communicated with a specific reason and duration.
Why it matters
Trading halts can signal important company news or extreme volatility, giving you time to understand developments before making rushed decisions. They protect against chaotic price swings.
Reviewed under editorial standardsUpdated September 26, 2026Not investment advice