Trader Brian Jones on Twitter: "The S&P did fall to support where I thought it would 3350. But because of 9/11. I'm a little unsure about taking any risks to start the day for tomorrow so i went back to cash. https://t.co/NGQ2jIYTzp" / Twitter

The S&P did fall to support where I thought it would 3350. But because of 9/11. I'm a little unsure about taking any risks to start the day for tomorrow so i went back to cash.