Nem sabia que existiam suspensoes do mercado.
Stocks resumed trading at 9:49 a.m. ET, after the New York Stock Exchange halted activity for 15 minutes.
What this is about: The NYSE has a series of “circuit breakers” that will kick in to halt market trading if we see severe declines in the S&P 500 index. It's basically an automatic breather to try and calm market.
There are three levels:
Level 1, when there's a 7% decrease – 15 minute halt
Level 2, when there's a 13% decrease – 15 minute halt
Level 3, when there's a 20% decrease – the market closes for the day