Every investor, no matter how seasoned, makes mistakes and buys stocks that end up underperforming. You should be wary of anyone who touts his or her perfect track record or infallible investment strategy.

Successful investors routinely reassess the validity of their investment theses, especially the rationale for holding names that have underperformed. Although focusing on your portfolio’s laggards can be an ego-bruising experience, this exercise helps to stop the rot and prevent the damage from worsening.

In this issue, we take an in-depth look at Focus List holding SandRidge Permian Trust (NYSE: PER), explore why the stock has struggled as of late and revisit our investment thesis. We also review our outlook for all the stocks in our extensive Coverage Universe.