JSON Baumgartner on Twitter: "Dow futures currently down over 1,200 points (5% circuit breaker in effect). Markets will open down below 1,200 points and will likely hit a circuit breaker within the first minute of trading." / Twitter

Dow futures currently down over 1,200 points (5% circuit breaker in effect). Markets will open down below 1,200 points and will likely hit a circuit breaker within the first minute of trading.