Trader Brian Jones on Twitter: "The support level on the system right now is S&P 3350. So any trading below that can cause more than a drop here and a sell signal in the short term. https://t.co/pawLtQIOSd" / Twitter

The support level on the system right now is S&P 3350. So any trading below that can cause more than a drop here and a sell signal in the short term.