
熔斷 Circuit breaker
美國時間3月9日,美國三大股指開盤暴跌,其中標準普爾500指數迅速下跌超過7%,觸發市場熔斷機制,市場交易停止15分鐘。這也是2008年金融危機后美股的首次熔斷。當地時間12日,標準普爾500指數開盤后再次迅速下跌超過7%,觸發熔斷。這是美股本周第二次出現熔斷。所謂熔斷機制,指在交易過程當中,當價格波動幅度達到某一限定目標時,交易將暫停一段時間,防范恐慌情緒進一步擴散給市場帶來更大沖擊。
The S&P 500 fell by seven percent upon opening on Monday, triggering a circuit breaker that halted trading for 15 minutes for the first time since the 2008 financial crisis. The S&P 500 declined 7 percent shortly after the opening bell on Thursday, triggering a key circuit breaker. It was Wall Street's second 15-minute halt this week. The circuit breaker mechanism refers to measures adopted by stock exchanges to temporarily halt trading to avert panic selling by investors after the stock index has fallen a certain percentage.
馬上學:熔斷機制的英文是circuit breaker mechanism,其中,circuit breaker在電工學里就是斷路器的意思。當電路中出現短路時,斷路器會立即斷開電路,保護負載的安全。
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