Circuit Breaker: why Stock Exchange suspended negotiations; see when she returns

I can't write a substantive market-context summary from this headline alone, because it doesn't state what triggered the circuit breaker, which exchange or instrument is involved, or the magnitude of the move. The phrase "Stock Exchange suspended negotiations" and the reference to "she" (which may refer to a stock, index, or a person) are ambiguous, and the instructions bar me from inventing facts. Assigning a transmission channel, exposed assets, or a specific catalyst would require details the headline does not provide. To produce an accurate summary, I would need the full article text or at least the index name, the percentage decline that triggered the halt, and the stated reason for the suspension, such as a volatility threshold, a specific company event, or a macro shock. If you share those details, I can write the 3-5 sentence summary in the requested format.

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