The 30 day moving average of the NYSE up volume as a percentage of total volume is now in the 0.55 range. This is definitely a huge plus for us shorts because it shows that up volume is around 55% of total volume. This area has been historically a brick wall for rallies. Actually lower levels (anything 0.50+) have also been rewarding. But at this level it can be characterized as an extreme reading. With regards to Helene Meisler of thestreet.com for the data.