It simply doesn't trade below the limit. It has bounced away a bit, it is still trading. I think it is the main index which has a market HALT at 7% down which causes trading to cease.
CNBC lol right now shows (mini) Dow futures +1119 green triangle pointing up Sent them a correction request. Probably take effect in about a week or so.
A move of at least 7% away from Friday's S&P 500 close will bring at least a temporary halt (15 minutes). Then again at 13% (another 15 minutes) and last 20% which will close the market for the day.
OPEC caused this. Russia and Saudi Arabia are about to engage in a price war. It's been all over the news the last few days. We're going into a recession now. Sub $30/barrel oil coming soon to your local gas station. Earnings soon will finish the market off and we'll be back to 2016 levels before the end of the year. Nice. Great buying opportunity if you're going to be able to keep your job through this. Kind of ruins Trump's only campaign plus - the stellar market. Hard to believe the Trump pump got us to almost dow 30k and now we might see < 19k here soon.