Market Regulation Services Inc. is reporting “circuit breaker” levels for the third quarter.

It is RS’ policy to co-ordinate with U.S. markets when “circuit breakers” are invoked. The circuit breaker trigger points are set at three fluctuating levels representing 10%, 20% and 30% of the Dow Jones Industrial Average. The levels are calculated by the New York Stock Exchange at the beginning of each calendar quarter, using the average closing value of the DJIA for the preceding month. Each trigger is rounded to the nearest 50 points.

The New York Stock Exchange has announced that third quarter trading halts will be triggered when the DJIA declines by 950 points for a level 1 halt; a level 2 halt kicks in at 1,900 points; and a level 3 halt will come with a 2,850 point plunge.

A Level 1 halt issued before 14:00 ET lasts one hour. After 14:00 ET but before 14:30 ET, a Level 1 halt lasts 30 minutes. After 14:30 ET trading continues, unless there is a Level 2 halt.

A Level 2 halt triggered before 13:00 ET lasts two hours. After 13:00 ET but before 14:00, a Level 2 halt lasts one hour. After 14:00 ET, trading halts and does not resume for the remainder of the day.

When a Level 3 halt is triggered, trading halts immediately and does not resume for the remainder of the day.