could be easily explained in many ways.  The key is the low volume.  The time to worry is when the volume is over 5-10 million and the PPS is going off a cliff.

How easily explained, you ask?  Try this:  IMO PTSC shareholders are inherent risk-takers, not "put it in a CD" type folks.  Housing, as a home or investment - WE ARE the kind of people that would refi with sub-primes; we're willing to accept some (relatively high) level of risk.  Now it's time to pay the piper, as the 2-5 year "fixed interest only" period is over.  What do you do?  Sell a little PTSC (but holding as much as you can for as long as you can) to cover those nasty payments. 

It's not the boat I'm in.  It may not be the boat you're in.  But you can bet there are a bunch of folks out there, in this particular boat or one just like it trying to navigate rough waters while trying to hold on here as long as possible.  So they sell a little, again and again as time marches on.

People seem to be groping for reasons for our slow decline in the face of great prospects.  The above is just one probable explanation.  One of many. 

JMHO,

SGE