Trading on the New York Stock Exchange was halted briefly Monday morning when the S&P 500 index fell 7%. Here's how these automatic circuit breakers work.

Trading on the New York Stock Exchange was halted briefly Monday morning when the S&P 500 index fell 7%. Here's how these automatic circuit breakers work.

ORNL researchers are designing and increasing the capacity of a new type of semiconductor-based circuit breaker, which can ...

Trading on the New York Stock Exchange was halted briefly Monday morning when the S&P 500 index fell 7%. Here's how these automatic circuit breakers work.

Is there a circuit breaker in your home that keeps tripping? It may need to be replaced. Fortunately, testing and replacing a breaker is something you can do.

How circuit breakers work for the stock market and some of the opportunities and drawbacks.

Six minutes after trading began on the New York Stock Exchange on Monday, it was suddenly halted. That's when the S&P 500 index had plummeted 7% and marketwide circuit breakers kicked in.