Index based market-wide circuit breaker mechanism

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....changes to implement an index based market wide circuit breaker system to bring about a coordinated trading halt in all equity and equity derivative markets nationwide on 10%, 15% and 20% movement either way of BSE SENSEX or NSE NIFTY. 2. The mechanism implemented by the stock exchanges for 'Index based market-wide circuit breakers' was discussed with SEBI's Technical Advisory Committee (TAC) and....

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....anism to ensure that all messages related to market-wide index circuit breakers are given higher priority over other messages. Further, the systems (including the network) for computation of market-wide index, checking for breach of circuit breaker limits and initiating message to stop matching of executable order and acceptance of fresh orders, shall not be used for any other purposes. (d) BSE ....