猜今晚美股會熔斷幾次? - 股票

By Jessica
at 2020-03-12T17:12
at 2020-03-12T17:12
Table of Contents
熔斷機制(英語:Circuit breaker / Trading curb)指的是在股票市場的交易時間中,
當價格波動的幅度達到某一個限定的目標(熔斷點)時,對其暫停交易一段時間的機制。
此機制如同保險絲在電流過大時候熔斷比較相似,故而得名。熔斷機制推出的目的是為了
防範系統性風險,給市場更多的冷靜時間,避免恐慌情緒蔓延導致市場波動,從而防止大
規模股價下跌現象的發生。然而熔斷機制也因切斷了資金的流通性,同樣會造成市場情緒
加大,並令市場風險在熔斷期結束後繼續擴大。
美國
美國指數熔斷機制的基準指數為標普500,單項跌幅閾值為7%、13%、20%。當指數較前一
天收盤點位下跌7%、13%時,全美證券市場交易將暫停15分鐘,當指數較前一天收盤點位
下跌20%時,當天交易停止。2010年美股又開始實行個股熔斷機制。
小道瓊今天熔斷一次了,今天有沒有可能熔斷兩次呢?來猜猜看
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