A trading issue refers to a specific security, contract, or instrument that is actively listed and available for buying and selling on a stock exchange or derivatives market. The term is also used to describe operational or technical problems that disrupt the normal execution of trades—such as system outages, order matching failures, or connectivity disruptions on exchange platforms. From a regulatory standpoint, SEBI and exchanges have defined procedures for handling trading issues, including circuit breaker activations, trading halts, and post-disruption price discovery mechanisms to ensure market integrity and investor protection.