Quote from mskl:
these are vague indicators and the least reliable - they fall under rule 123D. The ITS rules were very strict - as the NYSE would put out about 1,000 on any giving morning. Rule 123D creates typically only about 10 daily.
And its barely an indication at that. A yellow light goes on that there is an imbalance, and thats it ! No price indication at all. You can now see stocks opening $5-$8 away from their previous close, and you have NO CLUE that it would open this way until after it happens.
C-R-I-M-I-N-A-L
