Just trying to confirm what the term Personal Investment Performance (PIP) means on TSP.gov on your account page. I've sent an email to the website but they have not posted anything explaining it. I assume grossly that it is a comparison of my account balance today (well the 1st of what ever month) over the account balance 12 months ago. However, in economics, I find that the obvious is not the truth many times. For example, one person has suggested it is the amount minus new contributions but that doens't seem to make sense which could make it right 
Any thoughts
Thanks
Any thoughts
Thanks