Hmmm, well just an observation
1. overall very heavy volume for the day, about double the average
2. in the afternoon a series of very large (70-140,000 shares)transactions executed
IMHO somebody bailed, and this is probably a buying opportunity but this is just my opinion.
I am long PVX, and most likely a buyer tomorrow (maybe)
Fear rules at the moment. Take your pick...debt ceiling, end of stimulus, slowing economy, Greece debt crisis, etc. Will probably continue until there's more visibility to the first 3 of those items.