medium · Market Microstructure
If the S&P 500 Index experiences a sharp decline of 7.5% from the previous day's close at 3:35 PM ET, what is the regulatory action according to the U.S. Market-Wide Circuit Breaker rules?
- Trading continues without a halt.
- A 15-minute market-wide trading halt.
- Trading is halted for the remainder of the day.
- A 5-minute individual security halt is triggered.
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