Halt on stock

A trading halt is a temporary suspension of trading for a particular security or securities at one exchange or across numerous exchanges. It can be imposed for various reasons, such as anticipation of a news announcement, correction of an order imbalance, technical glitch, regulatory concerns, or a rapid price movement that triggers a halt based on exchange rules. Trading halts are different from trading suspensions ordered by the Securities and Exchange Commission (SEC), which can suspend public trading in any stock for up to 10 days to protect investors and the public interest. During a trading halt, open orders may be canceled and options still may be exercised. The duration of a trading halt can vary, and it may occur anytime during the trading day. Trading halts can also occur on the NASDAQ and other exchanges, and they are identified by specific codes to specify the reason for the halt. For example, T1 indicates a halt pending the release of significant news, while T2 indicates a halt to allow investors to assimilate news released.