The move down through 180 points on the NYA (NYSE Comp) triggered the trading collars fro the first time in I don’t know how long.
Here’s the NYSE’s infographic on the Circuit Breakers:
OK, trivia time: When was the last time these were triggered?
UPDATE February 27, 2007 2:58pm
A retail broker with a tendency to panic just sent this to our office.
(I don’t know him well enough to say whether or not this is a contrary indicator).