Market-wide circuit breaker triggers coordinated trading halt and purging of unmatched orders upon specified index movement. Stock exchanges must compute market-wide indices after every trade and check for breach of circuit breaker thresholds; on breach they shall stop matching executable orders to effect a trading halt and purge all unmatched orders. Exchanges must prioritise circuit-breaker messages and reserve the systems and networks used for index computation and halt initiation from other uses. Annual system audits shall review the mechanism for improvements. Exchanges must amend bye-laws, implement necessary systems, notify brokers and disseminate the provisions, pursuant to regulatory authority to protect investors and regulate the market.
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Market-wide circuit breaker triggers coordinated trading halt and purging of unmatched orders upon specified index movement.
Stock exchanges must compute market-wide indices after every trade and check for breach of circuit breaker thresholds; on breach they shall stop matching executable orders to effect a trading halt and purge all unmatched orders. Exchanges must prioritise circuit-breaker messages and reserve the systems and networks used for index computation and halt initiation from other uses. Annual system audits shall review the mechanism for improvements. Exchanges must amend bye-laws, implement necessary systems, notify brokers and disseminate the provisions, pursuant to regulatory authority to protect investors and regulate the market.
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