Union Pacific (NYSE:UNP) and CSX (NASDAQ:CSX) are selections for the real-money Inflation-Protected Income Growth portfolio. Like any investments, they need to be reviewed from time to time to see if  they're still worth owning. In the brief video below, portfolio manager Chuck Saletta reviews their valuations, balance sheets, and dividends and decides whether to hold on to the stocks or let them go.

To follow the iPIG portfolio as buy and sell decisions are made, watch Chuck's article feed by clicking here. To join The Motley Fool's free discussion board dedicated to the iPIG portfolio, simply click here. For more information on the Graham Equation used for the valuation estimates, see the article at this link.