PreMarket & AfterHours announcements
I have seen announcements come out for different stock in both PreMarket and AfterHours with both good and bad news. I have seen stock soar like SOMX did today in afterhours, and other stock tumble hard.
The funny thing that can happen is that when the market opens the next trading day, it may not perform the same way as it did in PreMarket or AfterHours. I have seen it sell off outside of hours, and when the market opened it soared.... could not figure that one out, but it happened.
We can only wait and see what the news says. I thought they would have it out my now at the brokers, web, company itself, etc but see nothing yet.